Merge pull request #832 from sasjs/parent-session-state-check

feat(job-state): added session state check to doPoll func

.github/PULL_REQUEST_TEMPLATE.md

@@ -14,7 +14,7 @@ What code changes have been made to achieve the intent.
 
 No PR (that involves a non-trivial code change) should be merged, unless all items below are confirmed!  If an urgent fix is needed - use a tar file.
 
-
+- [ ] Unit tests coverage has been increased and a new threshold is set.
 - [ ] All `sasjs-cli` unit tests are passing (`npm test`).
 - (CI Runs this) All `sasjs-tests` are passing. If you want to run it manually (instructions available [here](https://github.com/sasjs/adapter/blob/master/sasjs-tests/README.md)).
 - [ ] [Data Controller](https://datacontroller.io) builds and is functional on both SAS 9 and Viya

.github/workflows/assign-reviewer.yml

@@ -10,4 +10,4 @@ jobs:
       - uses: actions/checkout@v2
       - uses: uesteibar/reviewer-lottery@v1
         with:
-          repo-token: ${{ secrets.GH_TOKEN }}
+          repo-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/build.yml

@@ -80,6 +80,10 @@ jobs:
           npm run update:adapter
           pm2 start --name sasjs-test npm -- start
 
+      - name: Sleep for 10 seconds
+        run: sleep 10s
+        shell: bash
+
       - name: Run cypress on sasjs
         run: |
           replace-in-files --regex='"sasjsTestsUrl".*' --replacement='"sasjsTestsUrl":"http://localhost:3000",' ./cypress.json

.github/workflows/generateDocs.yml

@@ -37,7 +37,7 @@ jobs:
       - name: Push generated docs
         uses: peaceiris/actions-gh-pages@v3
         with:
-          github_token: ${{ secrets.GH_TOKEN }}
+          github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_branch: gh-pages
           publish_dir: ./docs
           cname: adapter.sasjs.io

.github/workflows/npmpublish.yml

@@ -36,7 +36,7 @@ jobs:
       - name: Semantic Release
         uses: cycjimmy/semantic-release-action@v3
         env:
-          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
 
       - name: Send Matrix message

README.md

@@ -153,6 +153,10 @@ The response object will contain returned tables and columns.  Table names are a
 
 The adapter will also cache the logs (if debug enabled) and even the work tables. For performance, it is best to keep debug mode off.
 
+### Verbose Mode
+
+Set `verbose` to `true` to enable verbose mode that logs a summary of every HTTP response. Verbose mode can be disabled by calling `disableVerboseMode` method or enabled by `enableVerboseMode` method. Verbose mode also supports `bleached` mode that disables extra colors in req/res summary. To enable `bleached` verbose mode, pass `verbose` equal to `bleached` while instantiating an instance of `RequestClient` or to `setVerboseMode` method. Verbose mode can also be enabled/disabled by `startComputeJob` method.
+
 ### Session Manager
 
 To execute a script on Viya a session has to be created first which is time-consuming (~15sec). That is why a Session Manager has been created which is implementing the following logic:
@@ -273,6 +277,7 @@ Configuration on the client side involves passing an object on startup, which ca
 * `serverType` - either `SAS9`, `SASVIYA` or `SASJS`.  The `SASJS` server type is for use with [sasjs/server](https://github.com/sasjs/server).
 * `serverUrl` - the location (including http protocol and port) of the SAS Server. Can be omitted, eg if serving directly from the SAS Web Server, or in streaming mode.
 * `debug` - if `true` then SAS Logs and extra debug information is returned.
+* `verbose` - optional, if `true` then a summary of every HTTP response is logged.
 * `loginMechanism` - either `Default` or `Redirected`.  See [SAS Logon](#sas-logon) section.
 * `useComputeApi` - Only relevant when the serverType is `SASVIYA`. If `true` the [Compute API](#using-the-compute-api) is used.  If `false` the [JES API](#using-the-jes-api) is used.  If `null` or `undefined` the [Web](#using-jes-web-app) approach is used.
 * `contextName` - Compute context on which the requests will be called.  If missing or not provided, defaults to `Job Execution Compute context`.

jest.config.js

@@ -41,7 +41,14 @@ module.exports = {
   // ],
 
   // An object that configures minimum threshold enforcement for coverage results
-  // coverageThreshold: undefined,
+  coverageThreshold: {
+    global: {
+      statements: 64.01,
+      branches: 45.11,
+      functions: 54.1,
+      lines: 64.51
+    }
+  },
 
   // A path to a custom dependency extractor
   // dependencyExtractor: undefined,

src/SASViyaApiClient.ts

@@ -25,7 +25,7 @@ import { prefixMessage } from '@sasjs/utils/error'
 import { pollJobState } from './api/viya/pollJobState'
 import { getTokens } from './auth/getTokens'
 import { uploadTables } from './api/viya/uploadTables'
-import { executeScript } from './api/viya/executeScript'
+import { executeOnComputeApi } from './api/viya/executeOnComputeApi'
 import { getAccessTokenForViya } from './auth/getAccessTokenForViya'
 import { refreshTokensForViya } from './auth/refreshTokensForViya'
 
@@ -293,7 +293,7 @@ export class SASViyaApiClient {
     printPid = false,
     variables?: MacroVar
   ): Promise<any> {
-    return executeScript(
+    return executeOnComputeApi(
       this.requestClient,
       this.sessionManager,
       this.rootFolderName,

src/SASjs.ts

@@ -4,7 +4,12 @@ import {
   UploadFile,
   EditContextInput,
   PollOptions,
-  LoginMechanism
+  LoginMechanism,
+  VerboseMode,
+  ErrorResponse,
+  LoginOptions,
+  LoginResult,
+  ExecutionQuery
 } from './types'
 import { SASViyaApiClient } from './SASViyaApiClient'
 import { SAS9ApiClient } from './SAS9ApiClient'
@@ -29,8 +34,7 @@ import {
   Sas9JobExecutor,
   FileUploader
 } from './job-execution'
-import { ErrorResponse } from './types/errors'
-import { LoginOptions, LoginResult } from './types/Login'
+import { AxiosResponse, AxiosError } from 'axios'
 
 interface ExecuteScriptParams {
   linesOfCode: string[]
@@ -157,6 +161,23 @@ export default class SASjs {
     }
   }
 
+  /**
+   * Executes job on SASJS server.
+   * @param query - an object containing job path and debug level.
+   * @param appLoc - an application path.
+   * @param authConfig - an object for authentication.
+   * @returns a promise that resolves into job execution result and log.
+   */
+  public async executeJob(
+    query: ExecutionQuery,
+    appLoc: string,
+    authConfig?: AuthConfig
+  ) {
+    this.isMethodSupported('executeScript', [ServerType.Sasjs])
+
+    return await this.sasJSApiClient?.executeJob(query, appLoc, authConfig)
+  }
+
   /**
    * Gets compute contexts.
    * @param accessToken - an access token for an authorised user.
@@ -854,6 +875,7 @@ export default class SASjs {
    * @param pollOptions - an object that represents poll interval(milliseconds) and maximum amount of attempts. Object example: { maxPollCount: 24 * 60 * 60, pollInterval: 1000 }. More information available at src/api/viya/pollJobState.ts.
    * @param printPid - a boolean that indicates whether the function should print (PID) of the started job.
    * @param variables - an object that represents macro variables.
+   * @param verboseMode - boolean or a string equal to 'bleached' to enable verbose mode (log every HTTP response).
    */
   public async startComputeJob(
     sasJob: string,
@@ -863,7 +885,8 @@ export default class SASjs {
     waitForResult?: boolean,
     pollOptions?: PollOptions,
     printPid = false,
-    variables?: MacroVar
+    variables?: MacroVar,
+    verboseMode?: VerboseMode
   ) {
     config = {
       ...this.sasjsConfig,
@@ -877,6 +900,11 @@ export default class SASjs {
       )
     }
 
+    if (verboseMode) {
+      this.requestClient?.setVerboseMode(verboseMode)
+      this.requestClient?.enableVerboseMode()
+    } else if (verboseMode === false) this.requestClient?.disableVerboseMode()
+
     return this.sasViyaApiClient?.executeComputeJob(
       sasJob,
       config.contextName,
@@ -970,7 +998,8 @@ export default class SASjs {
       this.requestClient = new RequestClientClass(
         this.sasjsConfig.serverUrl,
         this.sasjsConfig.httpsAgentOptions,
-        this.sasjsConfig.requestHistoryLimit
+        this.sasjsConfig.requestHistoryLimit,
+        this.sasjsConfig.verbose
       )
     } else {
       this.requestClient.setConfig(
@@ -1134,4 +1163,31 @@ export default class SASjs {
       )
     }
   }
+
+  /**
+   * Enables verbose mode that will log a summary of every HTTP response.
+   * @param successCallBack - function that should be triggered on every HTTP response with the status 2**.
+   * @param errorCallBack - function that should be triggered on every HTTP response with the status different from 2**.
+   */
+  public enableVerboseMode(
+    successCallBack?: (response: AxiosResponse | AxiosError) => AxiosResponse,
+    errorCallBack?: (response: AxiosResponse | AxiosError) => AxiosResponse
+  ) {
+    this.requestClient?.enableVerboseMode(successCallBack, errorCallBack)
+  }
+
+  /**
+   * Turns off verbose mode to log every HTTP response.
+   */
+  public disableVerboseMode() {
+    this.requestClient?.disableVerboseMode()
+  }
+
+  /**
+   * Sets verbose mode.
+   * @param verboseMode - value of the verbose mode, can be true, false or bleached(without extra colors).
+   */
+  public setVerboseMode = (verboseMode: VerboseMode) => {
+    this.requestClient?.setVerboseMode(verboseMode)
+  }
 }

src/SessionManager.ts

@@ -1,4 +1,4 @@
-import { Session, Context, SessionVariable } from './types'
+import { Session, Context, SessionVariable, SessionState } from './types'
 import { NoSessionStateError } from './types/errors'
 import { asyncForEach, isUrl } from './utils'
 import { prefixMessage } from '@sasjs/utils/error'
@@ -12,6 +12,7 @@ interface ApiErrorResponse {
 
 export class SessionManager {
   private loggedErrors: NoSessionStateError[] = []
+  private sessionStateLinkError = 'Error while getting session state link. '
 
   constructor(
     private serverUrl: string,
@@ -28,7 +29,7 @@ export class SessionManager {
   private _debug: boolean = false
   private printedSessionState = {
     printed: false,
-    state: ''
+    state: SessionState.NoState
   }
 
   public get debug() {
@@ -265,6 +266,18 @@ export class SessionManager {
         )
       })
 
+    // Add response etag to Session object.
+    createdSession.etag = etag
+
+    // Get session state link.
+    const stateLink = createdSession.links.find((link) => link.rel === 'state')
+
+    // Throw error if session state link is not present.
+    if (!stateLink) throw this.sessionStateLinkError
+
+    // Add session state link to Session object.
+    createdSession.stateUrl = stateLink.href
+
     await this.waitForSession(createdSession, etag, accessToken)
 
     this.sessions.push(createdSession)
@@ -327,32 +340,30 @@ export class SessionManager {
     etag: string | null,
     accessToken?: string
   ): Promise<string> {
+    let { state: sessionState } = session
+    const { stateUrl } = session
     const logger = process.logger || console
 
-    let sessionState = session.state
-
-    const stateLink = session.links.find((l: any) => l.rel === 'state')
-
     if (
-      sessionState === 'pending' ||
-      sessionState === 'running' ||
-      sessionState === ''
+      sessionState === SessionState.Pending ||
+      sessionState === SessionState.Running ||
+      sessionState === SessionState.NoState
     ) {
-      if (stateLink) {
+      if (stateUrl) {
         if (this.debug && !this.printedSessionState.printed) {
-          logger.info(`Polling: ${this.serverUrl + stateLink.href}`)
+          logger.info(`Polling: ${this.serverUrl + stateUrl}`)
 
           this.printedSessionState.printed = true
         }
 
-        const url = `${this.serverUrl}${stateLink.href}?wait=30`
+        const url = `${this.serverUrl}${stateUrl}?wait=30`
 
         const { result: state, responseStatus: responseStatus } =
           await this.getSessionState(url, etag!, accessToken).catch((err) => {
             throw prefixMessage(err, 'Error while waiting for session. ')
           })
 
-        sessionState = state.trim()
+        sessionState = state.trim() as SessionState
 
         if (this.debug && this.printedSessionState.state !== sessionState) {
           logger.info(`Current session state is '${sessionState}'`)
@@ -364,7 +375,7 @@ export class SessionManager {
         if (!sessionState) {
           const stateError = new NoSessionStateError(
             responseStatus,
-            this.serverUrl + stateLink.href,
+            this.serverUrl + stateUrl,
             session.links.find((l: any) => l.rel === 'log')?.href as string
           )
 
@@ -386,7 +397,7 @@ export class SessionManager {
 
         return sessionState
       } else {
-        throw 'Error while getting session state link. '
+        throw this.sessionStateLinkError
       }
     } else {
       this.loggedErrors = []
@@ -413,7 +424,7 @@ export class SessionManager {
     return await this.requestClient
       .get(url, accessToken, 'text/plain', { 'If-None-Match': etag })
       .then((res) => ({
-        result: res.result as string,
+        result: res.result as SessionState,
         responseStatus: res.status
       }))
       .catch((err) => {

src/api/viya/executeOnComputeApi.ts

@@ -15,8 +15,12 @@ import { formatDataForRequest } from '../../utils/formatDataForRequest'
 import { pollJobState, JobState } from './pollJobState'
 import { uploadTables } from './uploadTables'
 
+interface JobRequestBody {
+  [key: string]: number | string | string[]
+}
+
 /**
- * Executes code on the current SAS Viya server.
+ * Executes SAS program on the current SAS Viya server using Compute API.
  * @param jobPath - the path to the file being submitted for execution.
  * @param linesOfCode - an array of code lines to execute.
  * @param contextName - the context to execute the code in.
@@ -29,7 +33,7 @@ import { uploadTables } from './uploadTables'
  * @param printPid - a boolean that indicates whether the function should print (PID) of the started job.
  * @param variables - an object that represents macro variables.
  */
-export async function executeScript(
+export async function executeOnComputeApi(
   requestClient: RequestClient,
   sessionManager: SessionManager,
   rootFolderName: string,
@@ -46,6 +50,7 @@ export async function executeScript(
   variables?: MacroVar
 ): Promise<any> {
   let access_token = (authConfig || {}).access_token
+
   if (authConfig) {
     ;({ access_token } = await getTokens(requestClient, authConfig))
   }
@@ -78,27 +83,13 @@ export async function executeScript(
         const logger = process.logger || console
 
         logger.info(
-          `Triggered '${relativeJobPath}' with PID ${
+          `Triggering '${relativeJobPath}' with PID ${
             jobIdVariable.value
           } at ${timestampToYYYYMMDDHHMMSS()}`
         )
       }
     }
 
-    const jobArguments: { [key: string]: any } = {
-      _contextName: contextName,
-      _OMITJSONLISTING: true,
-      _OMITJSONLOG: true,
-      _OMITSESSIONRESULTS: true,
-      _OMITTEXTLISTING: true,
-      _OMITTEXTLOG: true
-    }
-
-    if (debug) {
-      jobArguments['_OMITTEXTLOG'] = false
-      jobArguments['_OMITSESSIONRESULTS'] = false
-    }
-
     let fileName
 
     if (isRelativePath(jobPath)) {
@@ -107,6 +98,7 @@ export async function executeScript(
       }`
     } else {
       const jobPathParts = jobPath.split('/')
+
       fileName = jobPathParts.pop()
     }
 
@@ -118,7 +110,6 @@ export async function executeScript(
     }
 
     if (variables) jobVariables = { ...jobVariables, ...variables }
-
     if (debug) jobVariables = { ...jobVariables, _DEBUG: 131 }
 
     let files: any[] = []
@@ -145,12 +136,12 @@ export async function executeScript(
     }
 
     // Execute job in session
-    const jobRequestBody = {
-      name: fileName,
+    const jobRequestBody: JobRequestBody = {
+      name: fileName || 'Default Job Name',
       description: 'Powered by SASjs',
       code: linesOfCode,
       variables: jobVariables,
-      arguments: jobArguments
+      version: 2
     }
 
     const { result: postedJob, etag } = await requestClient
@@ -179,16 +170,21 @@ export async function executeScript(
       postedJob,
       debug,
       authConfig,
-      pollOptions
+      pollOptions,
+      {
+        session,
+        sessionManager
+      }
     ).catch(async (err) => {
       const error = err?.response?.data
       const result = /err=[0-9]*,/.exec(error)
-
       const errorCode = '5113'
+
       if (result?.[0]?.slice(4, -1) === errorCode) {
+        const logCount = 1000000
         const sessionLogUrl =
           postedJob.links.find((l: any) => l.rel === 'up')!.href + '/log'
-        const logCount = 1000000
+
         err.log = await fetchLogByChunks(
           requestClient,
           access_token!,
@@ -196,6 +192,7 @@ export async function executeScript(
           logCount
         )
       }
+
       throw prefixMessage(err, 'Error while polling job status. ')
     })
 
@@ -214,12 +211,12 @@ export async function executeScript(
 
     let jobResult
     let log = ''
-
     const logLink = currentJob.links.find((l) => l.rel === 'log')
 
     if (debug && logLink) {
       const logUrl = `${logLink.href}/content`
       const logCount = currentJob.logStatistics?.lineCount ?? 1000000
+
       log = await fetchLogByChunks(
         requestClient,
         access_token!,
@@ -232,9 +229,7 @@ export async function executeScript(
       throw new ComputeJobExecutionError(currentJob, log)
     }
 
-    if (!expectWebout) {
-      return { job: currentJob, log }
-    }
+    if (!expectWebout) return { job: currentJob, log }
 
     const resultLink = `/compute/sessions/${executionSessionId}/filerefs/_webout/content`
 
@@ -245,6 +240,7 @@ export async function executeScript(
           if (logLink) {
             const logUrl = `${logLink.href}/content`
             const logCount = currentJob.logStatistics?.lineCount ?? 1000000
+
             log = await fetchLogByChunks(
               requestClient,
               access_token!,
@@ -279,7 +275,7 @@ export async function executeScript(
     const error = e as HttpError
 
     if (error.status === 404) {
-      return executeScript(
+      return executeOnComputeApi(
         requestClient,
         sessionManager,
         rootFolderName,

src/api/viya/pollJobState.ts

@@ -3,7 +3,7 @@ import { Job, PollOptions, PollStrategy } from '../..'
 import { getTokens } from '../../auth/getTokens'
 import { RequestClient } from '../../request/RequestClient'
 import { JobStatePollError } from '../../types/errors'
-import { Link, WriteStream } from '../../types'
+import { Link, WriteStream, SessionState, JobSessionManager } from '../../types'
 import { delay, isNode } from '../../utils'
 
 export enum JobState {
@@ -37,6 +37,7 @@ export enum JobState {
  *    { maxPollCount: 500, pollInterval: 30000 }, // approximately ~50.5 mins (including time to get response (~300ms))
  *    { maxPollCount: 3400, pollInterval: 60000 } // approximately ~3015 mins (~125 hours) (including time to get response (~300ms))
  * ]
+ * @param jobSessionManager - job session object containing session object and an instance of Session Manager. Job session object is used to periodically (every 10th job state poll) check parent session state.
  * @returns - a promise which resolves with a job state
  */
 export async function pollJobState(
@@ -44,7 +45,8 @@ export async function pollJobState(
   postedJob: Job,
   debug: boolean,
   authConfig?: AuthConfig,
-  pollOptions?: PollOptions
+  pollOptions?: PollOptions,
+  jobSessionManager?: JobSessionManager
 ): Promise<JobState> {
   const logger = process.logger || console
 
@@ -127,7 +129,8 @@ export async function pollJobState(
     pollOptions,
     authConfig,
     streamLog,
-    logFileStream
+    logFileStream,
+    jobSessionManager
   )
 
   currentState = result.state
@@ -158,7 +161,8 @@ export async function pollJobState(
       defaultPollOptions,
       authConfig,
       streamLog,
-      logFileStream
+      logFileStream,
+      jobSessionManager
     )
 
     currentState = result.state
@@ -208,7 +212,21 @@ const needsRetry = (state: string) =>
   state === JobState.Pending ||
   state === JobState.Unavailable
 
-const doPoll = async (
+/**
+ * Polls job state.
+ * @param requestClient - the pre-configured HTTP request client.
+ * @param postedJob - the relative or absolute path to the job.
+ * @param currentState - current job state.
+ * @param debug - sets the _debug flag in the job arguments.
+ * @param pollCount - current poll count.
+ * @param pollOptions - an object containing maxPollCount, pollInterval, streamLog and logFolderPath.
+ * @param authConfig - an access token, refresh token, client and secret for an authorized user.
+ * @param streamLog - indicates if job log should be streamed.
+ * @param logStream - job log stream.
+ * @param jobSessionManager - job session object containing session object and an instance of Session Manager. Job session object is used to periodically (every 10th job state poll) check parent session state.
+ * @returns - a promise which resolves with a job state
+ */
+export const doPoll = async (
   requestClient: RequestClient,
   postedJob: Job,
   currentState: JobState,
@@ -217,7 +235,8 @@ const doPoll = async (
   pollOptions: PollOptions,
   authConfig?: AuthConfig,
   streamLog?: boolean,
-  logStream?: WriteStream
+  logStream?: WriteStream,
+  jobSessionManager?: JobSessionManager
 ): Promise<{ state: JobState; pollCount: number }> => {
   const { maxPollCount, pollInterval } = pollOptions
   const logger = process.logger || console
@@ -229,6 +248,35 @@ const doPoll = async (
   let startLogLine = 0
 
   while (needsRetry(state) && pollCount <= maxPollCount) {
+    // Check parent session state on every 10th job state poll.
+    if (jobSessionManager && pollCount && pollCount % 10 === 0 && authConfig) {
+      const { session, sessionManager } = jobSessionManager
+      const { stateUrl, etag, id: sessionId } = session
+      const { access_token } = authConfig
+      const { id: jobId } = postedJob
+
+      // Get session state.
+      const { result: sessionState, responseStatus } = await sessionManager[
+        'getSessionState'
+      ](stateUrl, etag, access_token).catch((err) => {
+        // Handle error while getting session state.
+        throw new JobStatePollError(jobId, err)
+      })
+
+      // Clear parent session and throw an error if session state is not
+      // 'running' or response status is not 200.
+      if (sessionState !== SessionState.Running || responseStatus !== 200) {
+        sessionManager.clearSession(sessionId, access_token)
+
+        const sessionError =
+          sessionState !== SessionState.Running
+            ? `Session state of the job is not 'running'. Session state is '${sessionState}'`
+            : `Session response status is not 200. Session response status is ${responseStatus}.`
+
+        throw new JobStatePollError(jobId, new Error(sessionError))
+      }
+    }
+
     state = await getJobState(
       requestClient,
       postedJob,

src/api/viya/spec/executeScript.spec.ts

@@ -1,13 +1,13 @@
 import { RequestClient } from '../../../request/RequestClient'
 import { SessionManager } from '../../../SessionManager'
-import { executeScript } from '../executeScript'
+import { executeOnComputeApi } from '../executeOnComputeApi'
 import { mockSession, mockAuthConfig, mockJob } from './mockResponses'
 import * as pollJobStateModule from '../pollJobState'
 import * as uploadTablesModule from '../uploadTables'
 import * as getTokensModule from '../../../auth/getTokens'
 import * as formatDataModule from '../../../utils/formatDataForRequest'
 import * as fetchLogsModule from '../../../utils/fetchLogByChunks'
-import { PollOptions } from '../../../types'
+import { PollOptions, JobSessionManager } from '../../../types'
 import { ComputeJobExecutionError, NotFoundError } from '../../../types/errors'
 import { Logger, LogLevel } from '@sasjs/utils/logger'
 
@@ -25,7 +25,7 @@ describe('executeScript', () => {
   })
 
   it('should not try to get fresh tokens if an authConfig is not provided', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -38,7 +38,7 @@ describe('executeScript', () => {
   })
 
   it('should try to get fresh tokens if an authConfig is provided', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -55,7 +55,7 @@ describe('executeScript', () => {
   })
 
   it('should get a session from the session manager before executing', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -72,7 +72,7 @@ describe('executeScript', () => {
       .spyOn(sessionManager, 'getSession')
       .mockImplementation(() => Promise.reject('Test Error'))
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -85,7 +85,7 @@ describe('executeScript', () => {
   })
 
   it('should fetch the PID when printPid is true', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -113,7 +113,7 @@ describe('executeScript', () => {
       .spyOn(sessionManager, 'getVariable')
       .mockImplementation(() => Promise.reject('Test Error'))
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -139,7 +139,7 @@ describe('executeScript', () => {
         Promise.resolve([{ tableName: 'test', file: { id: 1 } }])
       )
 
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -163,7 +163,7 @@ describe('executeScript', () => {
   })
 
   it('should format data as CSV when it does not contain semicolons', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -189,7 +189,7 @@ describe('executeScript', () => {
       .spyOn(formatDataModule, 'formatDataForRequest')
       .mockImplementation(() => ({ sasjs_tables: 'foo', sasjs0data: 'bar' }))
 
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -217,14 +217,7 @@ describe('executeScript', () => {
           sasjs_tables: 'foo',
           sasjs0data: 'bar'
         },
-        arguments: {
-          _contextName: 'test context',
-          _OMITJSONLISTING: true,
-          _OMITJSONLOG: true,
-          _OMITSESSIONRESULTS: true,
-          _OMITTEXTLISTING: true,
-          _OMITTEXTLOG: true
-        }
+        version: 2
       },
       mockAuthConfig.access_token
     )
@@ -235,7 +228,7 @@ describe('executeScript', () => {
       .spyOn(formatDataModule, 'formatDataForRequest')
       .mockImplementation(() => ({ sasjs_tables: 'foo', sasjs0data: 'bar' }))
 
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -264,14 +257,7 @@ describe('executeScript', () => {
           sasjs0data: 'bar',
           _DEBUG: 131
         },
-        arguments: {
-          _contextName: 'test context',
-          _OMITJSONLISTING: true,
-          _OMITJSONLOG: true,
-          _OMITSESSIONRESULTS: false,
-          _OMITTEXTLISTING: true,
-          _OMITTEXTLOG: false
-        }
+        version: 2
       },
       mockAuthConfig.access_token
     )
@@ -282,7 +268,7 @@ describe('executeScript', () => {
       .spyOn(requestClient, 'post')
       .mockImplementation(() => Promise.reject('Test Error'))
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -302,7 +288,7 @@ describe('executeScript', () => {
   })
 
   it('should immediately return the session when waitForResult is false', async () => {
-    const result = await executeScript(
+    const result = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -322,7 +308,12 @@ describe('executeScript', () => {
   })
 
   it('should poll for job completion when waitForResult is true', async () => {
-    await executeScript(
+    const jobSessionManager: JobSessionManager = {
+      session: mockSession,
+      sessionManager: sessionManager
+    }
+
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -343,7 +334,8 @@ describe('executeScript', () => {
       mockJob,
       false,
       mockAuthConfig,
-      defaultPollOptions
+      defaultPollOptions,
+      jobSessionManager
     )
   })
 
@@ -352,7 +344,7 @@ describe('executeScript', () => {
       .spyOn(pollJobStateModule, 'pollJobState')
       .mockImplementation(() => Promise.reject('Poll Error'))
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -378,7 +370,7 @@ describe('executeScript', () => {
         Promise.reject({ response: { data: 'err=5113,' } })
       )
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -404,7 +396,7 @@ describe('executeScript', () => {
   })
 
   it('should fetch the logs for the job if debug is true and a log URL is available', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -429,7 +421,7 @@ describe('executeScript', () => {
   })
 
   it('should not fetch the logs for the job if debug is false', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -455,7 +447,7 @@ describe('executeScript', () => {
         Promise.resolve(pollJobStateModule.JobState.Failed)
       )
 
-    const error: ComputeJobExecutionError = await executeScript(
+    const error: ComputeJobExecutionError = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -490,7 +482,7 @@ describe('executeScript', () => {
         Promise.resolve(pollJobStateModule.JobState.Error)
       )
 
-    const error: ComputeJobExecutionError = await executeScript(
+    const error: ComputeJobExecutionError = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -519,7 +511,7 @@ describe('executeScript', () => {
   })
 
   it('should fetch the result if expectWebout is true', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -550,7 +542,7 @@ describe('executeScript', () => {
       return Promise.resolve({ result: mockJob, etag: '', status: 200 })
     })
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -584,7 +576,7 @@ describe('executeScript', () => {
   })
 
   it('should clear the session after execution is complete', async () => {
-    await executeScript(
+    await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',
@@ -611,7 +603,7 @@ describe('executeScript', () => {
       .spyOn(sessionManager, 'clearSession')
       .mockImplementation(() => Promise.reject('Clear Session Error'))
 
-    const error = await executeScript(
+    const error = await executeOnComputeApi(
       requestClient,
       sessionManager,
       'test',

src/api/viya/spec/mockResponses.ts

@@ -1,14 +1,16 @@
 import { AuthConfig } from '@sasjs/utils/types'
-import { Job, Session } from '../../../types'
+import { Job, Session, SessionState } from '../../../types'
 
 export const mockSession: Session = {
   id: 's35510n',
-  state: 'idle',
+  state: SessionState.Idle,
+  stateUrl: '',
   links: [],
   attributes: {
     sessionInactiveTimeout: 1
   },
-  creationTimeStamp: new Date().valueOf().toString()
+  creationTimeStamp: new Date().valueOf().toString(),
+  etag: 'etag-string'
 }
 
 export const mockJob: Job = {

src/api/viya/spec/pollJobState.spec.ts

@@ -1,17 +1,25 @@
 import { Logger, LogLevel } from '@sasjs/utils/logger'
 import { RequestClient } from '../../../request/RequestClient'
 import { mockAuthConfig, mockJob } from './mockResponses'
-import { pollJobState } from '../pollJobState'
+import { pollJobState, doPoll, JobState } from '../pollJobState'
 import * as getTokensModule from '../../../auth/getTokens'
 import * as saveLogModule from '../saveLog'
 import * as getFileStreamModule from '../getFileStream'
 import * as isNodeModule from '../../../utils/isNode'
 import * as delayModule from '../../../utils/delay'
-import { PollOptions, PollStrategy } from '../../../types'
+import {
+  PollOptions,
+  PollStrategy,
+  SessionState,
+  JobSessionManager
+} from '../../../types'
 import { WriteStream } from 'fs'
+import { SessionManager } from '../../../SessionManager'
+import { JobStatePollError } from '../../../types'
 
 const baseUrl = 'http://localhost'
 const requestClient = new (<jest.Mock<RequestClient>>RequestClient)()
+const sessionManager = new (<jest.Mock<SessionManager>>SessionManager)()
 requestClient['httpClient'].defaults.baseURL = baseUrl
 
 const defaultStreamLog = false
@@ -276,6 +284,76 @@ describe('pollJobState', () => {
     expect(delays).toEqual([pollIntervals[0], ...pollIntervals])
   })
 
+  it('should change default poll strategies after completing provided poll options', async () => {
+    const delays: number[] = []
+
+    jest.spyOn(delayModule, 'delay').mockImplementation((ms: number) => {
+      delays.push(ms)
+
+      return Promise.resolve()
+    })
+
+    const customPollOptions: PollOptions = {
+      maxPollCount: 0,
+      pollInterval: 0
+    }
+
+    const requests = [
+      { maxPollCount: 202, pollInterval: 300 },
+      { maxPollCount: 300, pollInterval: 3000 },
+      { maxPollCount: 500, pollInterval: 30000 },
+      { maxPollCount: 3400, pollInterval: 60000 }
+    ]
+
+    // ~200 requests with delay 300ms
+    let request = requests.splice(0, 1)[0]
+    let { maxPollCount, pollInterval } = request
+
+    // should be only one interval because maxPollCount is equal to 0
+    const pollIntervals = [customPollOptions.pollInterval]
+
+    pollIntervals.push(...Array(maxPollCount - 2).fill(pollInterval))
+
+    // ~300 requests with delay 3000
+    request = requests.splice(0, 1)[0]
+    let newAmount = request.maxPollCount
+    pollInterval = request.pollInterval
+
+    pollIntervals.push(...Array(newAmount - maxPollCount).fill(pollInterval))
+    pollIntervals.push(...Array(2).fill(pollInterval))
+
+    // ~500 requests with delay 30000
+    request = requests.splice(0, 1)[0]
+
+    let oldAmount = newAmount
+    newAmount = request.maxPollCount
+    pollInterval = request.pollInterval
+
+    pollIntervals.push(...Array(newAmount - oldAmount - 2).fill(pollInterval))
+    pollIntervals.push(...Array(2).fill(pollInterval))
+
+    // ~3400 requests with delay 60000
+    request = requests.splice(0, 1)[0]
+
+    oldAmount = newAmount
+    newAmount = request.maxPollCount
+    pollInterval = request.pollInterval
+
+    mockSimplePoll(newAmount)
+
+    pollIntervals.push(...Array(newAmount - oldAmount - 2).fill(pollInterval))
+
+    await pollJobState(
+      requestClient,
+      mockJob,
+      false,
+      undefined,
+      customPollOptions
+    )
+
+    expect(delays).toEqual(pollIntervals)
+  })
+
   it('should throw an error if not valid poll strategies provided', async () => {
     // INFO: 'maxPollCount' has to be > 0
     let invalidPollStrategy = {
@@ -353,6 +431,218 @@ describe('pollJobState', () => {
   })
 })
 
+describe('doPoll', () => {
+  const sessionStateLink = '/compute/sessions/session-id-ses0000/state'
+  const jobSessionManager: JobSessionManager = {
+    sessionManager,
+    session: {
+      id: ['id', new Date().getTime(), Math.random()].join('-'),
+      state: SessionState.NoState,
+      links: [
+        {
+          href: sessionStateLink,
+          method: 'GET',
+          rel: 'state',
+          type: 'text/plain',
+          uri: sessionStateLink
+        }
+      ],
+      attributes: {
+        sessionInactiveTimeout: 900
+      },
+      creationTimeStamp: `${new Date(new Date().getTime()).toISOString()}`,
+      stateUrl: '',
+      etag: ''
+    }
+  }
+
+  beforeEach(() => {
+    setupMocks()
+  })
+
+  it('should check session state on every 10th job state poll', async () => {
+    const mockedGetSessionState = jest
+      .spyOn(sessionManager as any, 'getSessionState')
+      .mockImplementation(() => {
+        return Promise.resolve({
+          result: SessionState.Running,
+          responseStatus: 200
+        })
+      })
+
+    let getSessionStateCount = 0
+    jest.spyOn(requestClient, 'get').mockImplementation(() => {
+      getSessionStateCount++
+
+      return Promise.resolve({
+        result:
+          getSessionStateCount < 20 ? JobState.Running : JobState.Completed,
+        etag: 'etag-string',
+        status: 200
+      })
+    })
+
+    await doPoll(
+      requestClient,
+      mockJob,
+      JobState.Running,
+      false,
+      1,
+      defaultPollStrategy,
+      mockAuthConfig,
+      undefined,
+      undefined,
+      jobSessionManager
+    )
+
+    expect(mockedGetSessionState).toHaveBeenCalledTimes(2)
+  })
+
+  it('should handle error while checking session state', async () => {
+    const sessionStateError = 'Error while getting session state.'
+
+    jest
+      .spyOn(sessionManager as any, 'getSessionState')
+      .mockImplementation(() => {
+        return Promise.reject(sessionStateError)
+      })
+
+    jest.spyOn(requestClient, 'get').mockImplementation(() => {
+      return Promise.resolve({
+        result: JobState.Running,
+        etag: 'etag-string',
+        status: 200
+      })
+    })
+
+    await expect(
+      doPoll(
+        requestClient,
+        mockJob,
+        JobState.Running,
+        false,
+        1,
+        defaultPollStrategy,
+        mockAuthConfig,
+        undefined,
+        undefined,
+        jobSessionManager
+      )
+    ).rejects.toEqual(
+      new JobStatePollError(mockJob.id, new Error(sessionStateError))
+    )
+  })
+
+  it('should throw an error if session is not in running state', async () => {
+    const filteredSessionStates = Object.values(SessionState).filter(
+      (state) => state !== SessionState.Running
+    )
+    const randomSessionState =
+      filteredSessionStates[
+        Math.floor(Math.random() * filteredSessionStates.length)
+      ]
+
+    jest
+      .spyOn(sessionManager as any, 'getSessionState')
+      .mockImplementation(() => {
+        return Promise.resolve({
+          result: randomSessionState,
+          responseStatus: 200
+        })
+      })
+
+    jest.spyOn(requestClient, 'get').mockImplementation(() => {
+      return Promise.resolve({
+        result: JobState.Running,
+        etag: 'etag-string',
+        status: 200
+      })
+    })
+
+    const mockedClearSession = jest
+      .spyOn(sessionManager, 'clearSession')
+      .mockImplementation(() => Promise.resolve())
+
+    await expect(
+      doPoll(
+        requestClient,
+        mockJob,
+        JobState.Running,
+        false,
+        1,
+        defaultPollStrategy,
+        mockAuthConfig,
+        undefined,
+        undefined,
+        jobSessionManager
+      )
+    ).rejects.toEqual(
+      new JobStatePollError(
+        mockJob.id,
+        new Error(
+          `Session state of the job is not 'running'. Session state is '${randomSessionState}'`
+        )
+      )
+    )
+
+    expect(mockedClearSession).toHaveBeenCalledWith(
+      jobSessionManager.session.id,
+      mockAuthConfig.access_token
+    )
+  })
+
+  it('should handle throw an error if response status of session state is not 200', async () => {
+    const sessionStateResponseStatus = 500
+    jest
+      .spyOn(sessionManager as any, 'getSessionState')
+      .mockImplementation(() => {
+        return Promise.resolve({
+          result: SessionState.Running,
+          responseStatus: sessionStateResponseStatus
+        })
+      })
+
+    jest.spyOn(requestClient, 'get').mockImplementation(() => {
+      return Promise.resolve({
+        result: JobState.Running,
+        etag: 'etag-string',
+        status: 200
+      })
+    })
+
+    const mockedClearSession = jest
+      .spyOn(sessionManager, 'clearSession')
+      .mockImplementation(() => Promise.resolve())
+
+    await expect(
+      doPoll(
+        requestClient,
+        mockJob,
+        JobState.Running,
+        false,
+        1,
+        defaultPollStrategy,
+        mockAuthConfig,
+        undefined,
+        undefined,
+        jobSessionManager
+      )
+    ).rejects.toEqual(
+      new JobStatePollError(
+        mockJob.id,
+        new Error(
+          `Session response status is not 200. Session response status is ${sessionStateResponseStatus}.`
+        )
+      )
+    )
+
+    expect(mockedClearSession).toHaveBeenCalledWith(
+      jobSessionManager.session.id,
+      mockAuthConfig.access_token
+    )
+  })
+})
+
 const setupMocks = () => {
   jest.restoreAllMocks()
   jest.mock('../../../request/RequestClient')

src/job-execution/FileUploader.ts

@@ -1,8 +1,7 @@
 import {
   getValidJson,
   parseSasViyaDebugResponse,
-  parseWeboutResponse,
-  SASJS_LOGS_SEPARATOR
+  parseWeboutResponse
 } from '../utils'
 import { UploadFile } from '../types/UploadFile'
 import {

src/minified/sas9/SASjs.ts

@@ -233,7 +233,8 @@ export default class SASjs {
       this.requestClient = new RequestClient(
         this.sasjsConfig.serverUrl,
         this.sasjsConfig.httpsAgentOptions,
-        this.sasjsConfig.requestHistoryLimit
+        this.sasjsConfig.requestHistoryLimit,
+        this.sasjsConfig.verbose
       )
     } else {
       this.requestClient.setConfig(

src/minified/sas9/WebJobExecutor.ts

@@ -11,7 +11,6 @@ import {
 import { RequestClient } from '../../request/RequestClient'
 import {
   isRelativePath,
-  parseSasViyaDebugResponse,
   appendExtraResponseAttributes,
   convertToCSV
 } from '../../utils'

src/request/RequestClient.ts

@@ -1,4 +1,10 @@
-import { AxiosInstance, AxiosRequestConfig, AxiosResponse } from 'axios'
+import {
+  AxiosError,
+  AxiosInstance,
+  AxiosRequestConfig,
+  AxiosResponse
+} from 'axios'
+import axios from 'axios'
 import * as https from 'https'
 import { CsrfToken } from '..'
 import { isAuthorizeFormRequired, isLogInRequired } from '../auth'
@@ -10,7 +16,7 @@ import {
   JobExecutionError,
   CertificateError
 } from '../types/errors'
-import { SASjsRequest } from '../types'
+import { SASjsRequest, HttpClient, VerboseMode } from '../types'
 import { parseWeboutResponse } from '../utils/parseWeboutResponse'
 import { prefixMessage } from '@sasjs/utils/error'
 import { SAS9AuthError } from '../types/errors/SAS9AuthError'
@@ -20,45 +26,13 @@ import {
   createAxiosInstance
 } from '../utils'
 import { InvalidSASjsCsrfError } from '../types/errors/InvalidSASjsCsrfError'
-
-export interface HttpClient {
-  get<T>(
-    url: string,
-    accessToken: string | undefined,
-    contentType: string,
-    overrideHeaders: { [key: string]: string | number }
-  ): Promise<{ result: T; etag: string }>
-
-  post<T>(
-    url: string,
-    data: any,
-    accessToken: string | undefined,
-    contentType: string,
-    overrideHeaders: { [key: string]: string | number }
-  ): Promise<{ result: T; etag: string }>
-
-  put<T>(
-    url: string,
-    data: any,
-    accessToken: string | undefined,
-    overrideHeaders: { [key: string]: string | number }
-  ): Promise<{ result: T; etag: string }>
-
-  delete<T>(
-    url: string,
-    accessToken: string | undefined
-  ): Promise<{ result: T; etag: string }>
-
-  getCsrfToken(type: 'general' | 'file'): CsrfToken | undefined
-  saveLocalStorageToken(accessToken: string, refreshToken: string): void
-  clearCsrfTokens(): void
-  clearLocalStorageTokens(): void
-  getBaseUrl(): string
-}
+import { inspect } from 'util'
 
 export class RequestClient implements HttpClient {
   private requests: SASjsRequest[] = []
   private requestsLimit: number = 10
+  private httpInterceptor?: number
+  private verboseMode: VerboseMode = false
 
   protected csrfToken: CsrfToken = { headerName: '', value: '' }
   protected fileUploadCsrfToken: CsrfToken | undefined
@@ -67,10 +41,17 @@ export class RequestClient implements HttpClient {
   constructor(
     protected baseUrl: string,
     httpsAgentOptions?: https.AgentOptions,
-    requestsLimit?: number
+    requestsLimit?: number,
+    verboseMode?: VerboseMode
   ) {
     this.createHttpClient(baseUrl, httpsAgentOptions)
+
     if (requestsLimit) this.requestsLimit = requestsLimit
+
+    if (verboseMode) {
+      this.setVerboseMode(verboseMode)
+      this.enableVerboseMode()
+    }
   }
 
   public setConfig(baseUrl: string, httpsAgentOptions?: https.AgentOptions) {
@@ -90,6 +71,7 @@ export class RequestClient implements HttpClient {
     this.csrfToken = { headerName: '', value: '' }
     this.fileUploadCsrfToken = { headerName: '', value: '' }
   }
+
   public clearLocalStorageTokens() {
     localStorage.setItem('accessToken', '')
     localStorage.setItem('refreshToken', '')
@@ -180,6 +162,7 @@ export class RequestClient implements HttpClient {
       responseType: contentType === 'text/plain' ? 'text' : 'json',
       withCredentials: true
     }
+
     if (contentType === 'text/plain') {
       requestConfig.transformResponse = undefined
     }
@@ -389,6 +372,181 @@ export class RequestClient implements HttpClient {
       })
   }
 
+  /**
+   * Adds colors to the string.
+   * If verboseMode is set to 'bleached', colors should be disabled
+   * @param str - string to be prettified.
+   * @returns - prettified string
+   */
+  private prettifyString = (str: any) =>
+    inspect(str, { colors: this.verboseMode !== 'bleached' })
+
+  /**
+   * Formats HTTP request/response body.
+   * @param body - HTTP request/response body.
+   * @returns - formatted string.
+   */
+  private parseInterceptedBody = (body: any) => {
+    if (!body) return ''
+
+    let parsedBody
+
+    // Tries to parse body into JSON object.
+    if (typeof body === 'string') {
+      try {
+        parsedBody = JSON.parse(body)
+      } catch (error) {
+        parsedBody = body
+      }
+    } else {
+      parsedBody = body
+    }
+
+    const bodyLines = this.prettifyString(parsedBody).split('\n')
+
+    // Leaves first 50 lines
+    if (bodyLines.length > 51) {
+      bodyLines.splice(50)
+      bodyLines.push('...')
+    }
+
+    return bodyLines.join('\n')
+  }
+
+  private defaultInterceptionCallBack = (
+    axiosResponse: AxiosResponse | AxiosError
+  ) => {
+    // Message indicating absent value.
+    const noValueMessage = 'Not provided'
+
+    // Fallback request object that can be safely used to form request summary.
+    type FallbackRequest = { _header?: string; res: { rawHeaders: string[] } }
+    // _header is not present in responses with status 1**
+    // rawHeaders are not present in responses with status 1**
+    let fallbackRequest: FallbackRequest = {
+      _header: `${noValueMessage}\n`,
+      res: { rawHeaders: [noValueMessage] }
+    }
+
+    // Fallback response object that can be safely used to form response summary.
+    type FallbackResponse = {
+      status?: number | string
+      request?: FallbackRequest
+      config: { data?: string }
+      data?: unknown
+    }
+    let fallbackResponse: FallbackResponse = axiosResponse
+
+    if (axios.isAxiosError(axiosResponse)) {
+      const { response, request, config } = axiosResponse
+
+      // Try to use axiosResponse.response to form response summary.
+      if (response) {
+        fallbackResponse = response
+      } else {
+        // Try to use axiosResponse.request to form request summary.
+        if (request) {
+          const { _header, _currentRequest } = request
+
+          // Try to use axiosResponse.request._header to form request summary.
+          if (_header) {
+            fallbackRequest._header = _header
+          }
+          // Try to use axiosResponse.request._currentRequest._header to form request summary.
+          else if (_currentRequest && _currentRequest._header) {
+            fallbackRequest._header = _currentRequest._header
+          }
+
+          const { res } = request
+
+          // Try to use axiosResponse.request.res.rawHeaders to form request summary.
+          if (res && res.rawHeaders) {
+            fallbackRequest.res.rawHeaders = res.rawHeaders
+          }
+        }
+
+        // Fallback config that can be safely used to form response summary.
+        const fallbackConfig = { data: noValueMessage }
+
+        fallbackResponse = {
+          status: noValueMessage,
+          request: fallbackRequest,
+          config: config || fallbackConfig,
+          data: noValueMessage
+        }
+      }
+    }
+
+    const { status, config, request, data: resData } = fallbackResponse
+    const { data: reqData } = config
+    const { _header: reqHeaders, res } = request || fallbackRequest
+    const { rawHeaders } = res
+
+    // Converts an array of strings into a single string with the following format:
+    // <headerName>: <headerValue>
+    const resHeaders = rawHeaders.reduce(
+      (acc: string, value: string, i: number) => {
+        if (i % 2 === 0) {
+          acc += `${i === 0 ? '' : '\n'}${value}`
+        } else {
+          acc += `: ${value}`
+        }
+
+        return acc
+      },
+      ''
+    )
+
+    const parsedResBody = this.parseInterceptedBody(resData)
+
+    // HTTP response summary.
+    process.logger?.info(`HTTP Request (first 50 lines):
+${reqHeaders}${this.parseInterceptedBody(reqData)}
+
+HTTP Response Code: ${this.prettifyString(status)}
+
+HTTP Response (first 50 lines):
+${resHeaders}${parsedResBody ? `\n\n${parsedResBody}` : ''}
+`)
+
+    return axiosResponse
+  }
+
+  /**
+   * Sets verbose mode.
+   * @param verboseMode - value of the verbose mode, can be true, false or bleached(without extra colors).
+   */
+  public setVerboseMode = (verboseMode: VerboseMode) => {
+    this.verboseMode = verboseMode
+
+    if (this.verboseMode) this.enableVerboseMode()
+    else this.disableVerboseMode()
+  }
+
+  /**
+   * Turns on verbose mode to log every HTTP response.
+   * @param successCallBack - function that should be triggered on every HTTP response with the status 2**.
+   * @param errorCallBack - function that should be triggered on every HTTP response with the status different from 2**.
+   */
+  public enableVerboseMode = (
+    successCallBack = this.defaultInterceptionCallBack,
+    errorCallBack = this.defaultInterceptionCallBack
+  ) => {
+    this.httpInterceptor = this.httpClient.interceptors.response.use(
+      successCallBack,
+      errorCallBack
+    )
+  }
+
+  /**
+   * Turns off verbose mode to log every HTTP response.
+   */
+  public disableVerboseMode = () => {
+    if (this.httpInterceptor) {
+      this.httpClient.interceptors.response.eject(this.httpInterceptor)
+    }
+  }
+
   protected getHeaders = (
     accessToken: string | undefined,
     contentType: string

src/request/SasjsRequestClient.ts

@@ -1,20 +1,11 @@
 import { RequestClient } from './RequestClient'
 import { AxiosResponse } from 'axios'
-import { SASJS_LOGS_SEPARATOR } from '../utils'
-
-interface SasjsParsedResponse<T> {
-  result: T
-  log: string
-  etag: string
-  status: number
-  printOutput?: string
-}
+import { SasjsParsedResponse } from '../types'
 
 /**
  * Specific request client for SASJS.
  * Append tokens in headers.
  */
-
 export class SasjsRequestClient extends RequestClient {
   getHeaders = (accessToken: string | undefined, contentType: string) => {
     const headers: any = {}
@@ -45,13 +36,30 @@ export class SasjsRequestClient extends RequestClient {
       }
     } catch {
       if (response.data.includes(SASJS_LOGS_SEPARATOR)) {
-        const splittedResponse = response.data.split(SASJS_LOGS_SEPARATOR)
+        const { data } = response
+        const splittedResponse: string[] = data.split(SASJS_LOGS_SEPARATOR)
 
-        webout = splittedResponse[0]
+        webout = splittedResponse.splice(0, 1)[0]
         if (webout !== undefined) parsedResponse = webout
 
-        log = splittedResponse[1]
-        printOutput = splittedResponse[2]
+        // log can contain nested logs
+        const logs = splittedResponse.splice(0, splittedResponse.length - 1)
+
+        // tests if string ends with SASJS_LOGS_SEPARATOR
+        const endingWithLogSepRegExp = new RegExp(`${SASJS_LOGS_SEPARATOR}$`)
+
+        // at this point splittedResponse can contain only one item
+        const lastChunk = splittedResponse[0]
+
+        if (lastChunk) {
+          // if the last chunk doesn't end with SASJS_LOGS_SEPARATOR, then it is a printOutput
+          // else the last chunk is part of the log and has to be joined
+          if (!endingWithLogSepRegExp.test(data)) printOutput = lastChunk
+          else if (logs.length > 1) logs.push(lastChunk)
+        }
+
+        // join logs into single log with SASJS_LOGS_SEPARATOR
+        log = logs.join(SASJS_LOGS_SEPARATOR)
       } else {
         parsedResponse = response.data
       }
@@ -59,7 +67,7 @@ export class SasjsRequestClient extends RequestClient {
 
     const returnResult: SasjsParsedResponse<T> = {
       result: parsedResponse as T,
-      log,
+      log: log || '',
       etag,
       status: response.status
     }
@@ -69,3 +77,6 @@ export class SasjsRequestClient extends RequestClient {
     return returnResult
   }
 }
+
+export const SASJS_LOGS_SEPARATOR =
+  'SASJS_LOGS_SEPARATOR_163ee17b6ff24f028928972d80a26784'

src/request/spec/SasjsRequestClient.spec.ts

@@ -0,0 +1,169 @@
+import { SASJS_LOGS_SEPARATOR, SasjsRequestClient } from '../SasjsRequestClient'
+import { SasjsParsedResponse } from '../../types'
+import { AxiosResponse } from 'axios'
+
+describe('SasjsRequestClient', () => {
+  const requestClient = new SasjsRequestClient('')
+  const etag = 'etag'
+  const status = 200
+
+  const webout = `hello`
+  const log = `1                                                          The SAS System                             Tuesday, 25 July 2023 12:51:00
+
+
+PROC MIGRATE will preserve current SAS file attributes and is 
+recommended for converting all your SAS libraries from any 
+SAS 8 release to SAS 9.  For details and examples, please see
+http://support.sas.com/rnd/migration/index.html
+
+
+
+NOTE: SAS initialization used:
+    real time           0.01 seconds
+    cpu time            0.02 seconds
+    
+
+`
+  const printOutput = 'printOutPut'
+
+  describe('parseResponse', () => {})
+
+  it('should parse response with 1 log', () => {
+    const response: AxiosResponse<any> = {
+      data: `${webout}
+${SASJS_LOGS_SEPARATOR}
+${log}
+${SASJS_LOGS_SEPARATOR}`,
+      status,
+      statusText: 'ok',
+      headers: { etag },
+      config: {}
+    }
+
+    const expectedParsedResponse: SasjsParsedResponse<string> = {
+      result: `${webout}
+`,
+      log: `
+${log}
+`,
+      etag,
+      status
+    }
+
+    expect(requestClient['parseResponse'](response)).toEqual(
+      expectedParsedResponse
+    )
+  })
+
+  it('should parse response with 1 log and printOutput', () => {
+    const response: AxiosResponse<any> = {
+      data: `${webout}
+${SASJS_LOGS_SEPARATOR}
+${log}
+${SASJS_LOGS_SEPARATOR}
+${printOutput}`,
+      status,
+      statusText: 'ok',
+      headers: { etag },
+      config: {}
+    }
+
+    const expectedParsedResponse: SasjsParsedResponse<string> = {
+      result: `${webout}
+`,
+      log: `
+${log}
+`,
+      etag,
+      status,
+      printOutput: `
+${printOutput}`
+    }
+
+    expect(requestClient['parseResponse'](response)).toEqual(
+      expectedParsedResponse
+    )
+  })
+
+  it('should parse response with nested logs', () => {
+    const logWithNestedLog = `root log start
+${SASJS_LOGS_SEPARATOR}
+${log}
+${SASJS_LOGS_SEPARATOR}
+root log end`
+
+    const response: AxiosResponse<any> = {
+      data: `${webout}
+${SASJS_LOGS_SEPARATOR}
+${logWithNestedLog}
+${SASJS_LOGS_SEPARATOR}`,
+      status,
+      statusText: 'ok',
+      headers: { etag },
+      config: {}
+    }
+
+    const expectedParsedResponse: SasjsParsedResponse<string> = {
+      result: `${webout}
+`,
+      log: `
+${logWithNestedLog}
+`,
+      etag,
+      status
+    }
+
+    expect(requestClient['parseResponse'](response)).toEqual(
+      expectedParsedResponse
+    )
+  })
+
+  it('should parse response with nested logs and printOutput', () => {
+    const logWithNestedLog = `root log start
+${SASJS_LOGS_SEPARATOR}
+${log}
+${SASJS_LOGS_SEPARATOR}
+log with indentation
+  ${SASJS_LOGS_SEPARATOR}
+  ${log}
+  ${SASJS_LOGS_SEPARATOR}
+some SAS code containing ${SASJS_LOGS_SEPARATOR}
+root log end`
+
+    const response: AxiosResponse<any> = {
+      data: `${webout}
+${SASJS_LOGS_SEPARATOR}
+${logWithNestedLog}
+${SASJS_LOGS_SEPARATOR}
+${printOutput}`,
+      status,
+      statusText: 'ok',
+      headers: { etag },
+      config: {}
+    }
+
+    const expectedParsedResponse: SasjsParsedResponse<string> = {
+      result: `${webout}
+`,
+      log: `
+${logWithNestedLog}
+`,
+      etag,
+      status,
+      printOutput: `
+${printOutput}`
+    }
+
+    expect(requestClient['parseResponse'](response)).toEqual(
+      expectedParsedResponse
+    )
+  })
+})
+
+describe('SASJS_LOGS_SEPARATOR', () => {
+  it('SASJS_LOGS_SEPARATOR should be hardcoded', () => {
+    expect(SASJS_LOGS_SEPARATOR).toEqual(
+      'SASJS_LOGS_SEPARATOR_163ee17b6ff24f028928972d80a26784'
+    )
+  })
+})

src/test/RequestClient.spec.ts

@@ -5,14 +5,19 @@ import { app, mockedAuthResponse } from './SAS_server_app'
 import { ServerType } from '@sasjs/utils/types'
 import SASjs from '../SASjs'
 import * as axiosModules from '../utils/createAxiosInstance'
+import axios from 'axios'
 import {
   LoginRequiredError,
   AuthorizeError,
   NotFoundError,
-  InternalServerError
-} from '../types/errors'
+  InternalServerError,
+  VerboseMode
+} from '../types'
 import { RequestClient } from '../request/RequestClient'
 import { getTokenRequestErrorPrefixResponse } from '../auth/getTokenRequestErrorPrefix'
+import { AxiosResponse, AxiosError } from 'axios'
+import { Logger, LogLevel } from '@sasjs/utils/logger'
+import * as UtilsModule from 'util'
 
 const axiosActual = jest.requireActual('axios')
 
@@ -25,16 +30,6 @@ jest
 const PORT = 8000
 const SERVER_URL = `https://localhost:${PORT}/`
 
-const ERROR_MESSAGES = {
-  selfSigned: 'self signed certificate',
-  CCA: 'unable to verify the first certificate'
-}
-
-const incorrectAuthCodeErr = {
-  error: 'unauthorized',
-  error_description: 'Bad credentials'
-}
-
 describe('RequestClient', () => {
   let server: http.Server
 
@@ -80,6 +75,411 @@ describe('RequestClient', () => {
     expect(rejectionErrorMessage).toEqual(expectedError.message)
   })
 
+  describe('defaultInterceptionCallBack', () => {
+    const reqHeaders = `POST https://sas.server.com/compute/sessions/session_id/jobs HTTP/1.1
+Accept: application/json
+Content-Type: application/json
+User-Agent: axios/0.27.2
+Content-Length: 334
+host: sas.server.io
+Connection: close
+`
+    const reqData = `{
+          name: 'test_job',
+          description: 'Powered by SASjs',
+          code: ['test_code'],
+          variables: {
+            SYS_JES_JOB_URI: '',
+            _program: '/Public/sasjs/jobs/jobs/test_job'
+          },
+          arguments: {
+            _contextName: 'SAS Job Execution compute context',
+            _OMITJSONLISTING: true,
+            _OMITJSONLOG: true,
+            _OMITSESSIONRESULTS: true,
+            _OMITTEXTLISTING: true,
+            _OMITTEXTLOG: true
+          }
+        }`
+
+    const resHeaders = ['content-type', 'application/json']
+    const resData = {
+      id: 'id_string',
+      name: 'name_string',
+      uri: 'uri_string',
+      createdBy: 'createdBy_string',
+      code: 'TEST CODE',
+      links: [
+        {
+          method: 'method_string',
+          rel: 'state',
+          href: 'state_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        },
+        {
+          method: 'method_string',
+          rel: 'state',
+          href: 'state_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        },
+        {
+          method: 'method_string',
+          rel: 'state',
+          href: 'state_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        },
+        {
+          method: 'method_string',
+          rel: 'state',
+          href: 'state_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        },
+        {
+          method: 'method_string',
+          rel: 'state',
+          href: 'state_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        },
+        {
+          method: 'method_string',
+          rel: 'self',
+          href: 'self_href_string',
+          uri: 'uri_string',
+          type: 'type_string'
+        }
+      ],
+      results: { '_webout.json': '_webout.json_string' },
+      logStatistics: {
+        lineCount: 1,
+        modifiedTimeStamp: 'modifiedTimeStamp_string'
+      }
+    }
+    beforeAll(() => {
+      ;(process as any).logger = new Logger(LogLevel.Off)
+      jest.spyOn((process as any).logger, 'info')
+    })
+
+    it('should log parsed response with status 1**', () => {
+      const spyIsAxiosError = jest
+        .spyOn(axios, 'isAxiosError')
+        .mockImplementation(() => true)
+
+      const mockedAxiosError = {
+        config: {
+          data: reqData
+        },
+        request: {
+          _currentRequest: {
+            _header: reqHeaders
+          }
+        }
+      } as AxiosError
+
+      const requestClient = new RequestClient('')
+      requestClient['defaultInterceptionCallBack'](mockedAxiosError)
+
+      const noValueMessage = 'Not provided'
+      const expectedLog = `HTTP Request (first 50 lines):
+${reqHeaders}${requestClient['parseInterceptedBody'](reqData)}
+
+HTTP Response Code: ${requestClient['prettifyString'](noValueMessage)}
+
+HTTP Response (first 50 lines):
+${noValueMessage}
+\n${requestClient['parseInterceptedBody'](noValueMessage)}
+`
+
+      expect((process as any).logger.info).toHaveBeenCalledWith(expectedLog)
+
+      spyIsAxiosError.mockReset()
+    })
+
+    it('should log parsed response with status 2**', () => {
+      const status = getRandomStatus([
+        200, 201, 202, 203, 204, 205, 206, 207, 208, 226
+      ])
+
+      const mockedResponse: AxiosResponse = {
+        data: resData,
+        status,
+        statusText: '',
+        headers: {},
+        config: { data: reqData },
+        request: { _header: reqHeaders, res: { rawHeaders: resHeaders } }
+      }
+
+      const requestClient = new RequestClient('')
+      requestClient['defaultInterceptionCallBack'](mockedResponse)
+
+      const expectedLog = `HTTP Request (first 50 lines):
+${reqHeaders}${requestClient['parseInterceptedBody'](reqData)}
+
+HTTP Response Code: ${requestClient['prettifyString'](status)}
+
+HTTP Response (first 50 lines):
+${resHeaders[0]}: ${resHeaders[1]}${
+        requestClient['parseInterceptedBody'](resData)
+          ? `\n\n${requestClient['parseInterceptedBody'](resData)}`
+          : ''
+      }
+`
+
+      expect((process as any).logger.info).toHaveBeenCalledWith(expectedLog)
+    })
+
+    it('should log parsed response with status 3**', () => {
+      const status = getRandomStatus([300, 301, 302, 303, 304, 307, 308])
+
+      const mockedResponse: AxiosResponse = {
+        data: resData,
+        status,
+        statusText: '',
+        headers: {},
+        config: { data: reqData },
+        request: { _header: reqHeaders, res: { rawHeaders: resHeaders } }
+      }
+
+      const requestClient = new RequestClient('')
+      requestClient['defaultInterceptionCallBack'](mockedResponse)
+
+      const expectedLog = `HTTP Request (first 50 lines):
+${reqHeaders}${requestClient['parseInterceptedBody'](reqData)}
+
+HTTP Response Code: ${requestClient['prettifyString'](status)}
+
+HTTP Response (first 50 lines):
+${resHeaders[0]}: ${resHeaders[1]}${
+        requestClient['parseInterceptedBody'](resData)
+          ? `\n\n${requestClient['parseInterceptedBody'](resData)}`
+          : ''
+      }
+`
+
+      expect((process as any).logger.info).toHaveBeenCalledWith(expectedLog)
+    })
+
+    it('should log parsed response with status 4**', () => {
+      const spyIsAxiosError = jest
+        .spyOn(axios, 'isAxiosError')
+        .mockImplementation(() => true)
+
+      const status = getRandomStatus([
+        400, 401, 402, 403, 404, 407, 408, 409, 410, 411, 412, 413, 414, 415,
+        416, 417, 418, 421, 422, 423, 424, 425, 426, 428, 429, 431, 451
+      ])
+
+      const mockedResponse: AxiosResponse = {
+        data: resData,
+        status,
+        statusText: '',
+        headers: {},
+        config: { data: reqData },
+        request: { _header: reqHeaders, res: { rawHeaders: resHeaders } }
+      }
+      const mockedAxiosError = {
+        config: {
+          data: reqData
+        },
+        request: {
+          _currentRequest: {
+            _header: reqHeaders
+          }
+        },
+        response: mockedResponse
+      } as AxiosError
+
+      const requestClient = new RequestClient('')
+      requestClient['defaultInterceptionCallBack'](mockedAxiosError)
+
+      const expectedLog = `HTTP Request (first 50 lines):
+${reqHeaders}${requestClient['parseInterceptedBody'](reqData)}
+
+HTTP Response Code: ${requestClient['prettifyString'](status)}
+
+HTTP Response (first 50 lines):
+${resHeaders[0]}: ${resHeaders[1]}${
+        requestClient['parseInterceptedBody'](resData)
+          ? `\n\n${requestClient['parseInterceptedBody'](resData)}`
+          : ''
+      }
+`
+
+      expect((process as any).logger.info).toHaveBeenCalledWith(expectedLog)
+
+      spyIsAxiosError.mockReset()
+    })
+
+    it('should log parsed response with status 5**', () => {
+      const spyIsAxiosError = jest
+        .spyOn(axios, 'isAxiosError')
+        .mockImplementation(() => true)
+
+      const status = getRandomStatus([
+        500, 501, 502, 503, 504, 505, 506, 507, 508, 510, 511
+      ])
+
+      const mockedResponse: AxiosResponse = {
+        data: resData,
+        status,
+        statusText: '',
+        headers: {},
+        config: { data: reqData },
+        request: { _header: reqHeaders, res: { rawHeaders: resHeaders } }
+      }
+      const mockedAxiosError = {
+        config: {
+          data: reqData
+        },
+        request: {
+          _currentRequest: {
+            _header: reqHeaders
+          }
+        },
+        response: mockedResponse
+      } as AxiosError
+
+      const requestClient = new RequestClient('')
+      requestClient['defaultInterceptionCallBack'](mockedAxiosError)
+
+      const expectedLog = `HTTP Request (first 50 lines):
+${reqHeaders}${requestClient['parseInterceptedBody'](reqData)}
+
+HTTP Response Code: ${requestClient['prettifyString'](status)}
+
+HTTP Response (first 50 lines):
+${resHeaders[0]}: ${resHeaders[1]}${
+        requestClient['parseInterceptedBody'](resData)
+          ? `\n\n${requestClient['parseInterceptedBody'](resData)}`
+          : ''
+      }
+`
+
+      expect((process as any).logger.info).toHaveBeenCalledWith(expectedLog)
+
+      spyIsAxiosError.mockReset()
+    })
+  })
+
+  describe('enableVerboseMode', () => {
+    it('should add defaultInterceptionCallBack functions to response interceptors', () => {
+      const requestClient = new RequestClient('')
+      const interceptorSpy = jest.spyOn(
+        requestClient['httpClient'].interceptors.response,
+        'use'
+      )
+
+      requestClient.enableVerboseMode()
+
+      expect(interceptorSpy).toHaveBeenCalledWith(
+        requestClient['defaultInterceptionCallBack'],
+        requestClient['defaultInterceptionCallBack']
+      )
+    })
+
+    it('should add callback functions to response interceptors', () => {
+      const requestClient = new RequestClient('')
+      const interceptorSpy = jest.spyOn(
+        requestClient['httpClient'].interceptors.response,
+        'use'
+      )
+
+      const successCallback = (response: AxiosResponse | AxiosError) => {
+        console.log('success')
+
+        return response
+      }
+      const failureCallback = (response: AxiosResponse | AxiosError) => {
+        console.log('failure')
+
+        return response
+      }
+
+      requestClient.enableVerboseMode(successCallback, failureCallback)
+
+      expect(interceptorSpy).toHaveBeenCalledWith(
+        successCallback,
+        failureCallback
+      )
+    })
+  })
+
+  describe('setVerboseMode', () => {
+    it(`should set verbose mode`, () => {
+      const requestClient = new RequestClient('')
+      let verbose: VerboseMode = false
+      requestClient.setVerboseMode(verbose)
+
+      expect(requestClient['verboseMode']).toEqual(verbose)
+
+      verbose = true
+      requestClient.setVerboseMode(verbose)
+
+      expect(requestClient['verboseMode']).toEqual(verbose)
+
+      verbose = 'bleached'
+      requestClient.setVerboseMode(verbose)
+
+      expect(requestClient['verboseMode']).toEqual(verbose)
+    })
+  })
+
+  describe('prettifyString', () => {
+    it(`should call inspect without colors when verbose mode is set to 'bleached'`, () => {
+      const requestClient = new RequestClient('')
+      let verbose: VerboseMode = 'bleached'
+      requestClient.setVerboseMode(verbose)
+
+      jest.spyOn(UtilsModule, 'inspect')
+
+      const testStr = JSON.stringify({ test: 'test' })
+
+      requestClient['prettifyString'](testStr)
+
+      expect(UtilsModule.inspect).toHaveBeenCalledWith(testStr, {
+        colors: false
+      })
+    })
+
+    it(`should call inspect with colors when verbose mode is set to 'true'`, () => {
+      const requestClient = new RequestClient('')
+      let verbose: VerboseMode = true
+      requestClient.setVerboseMode(verbose)
+
+      jest.spyOn(UtilsModule, 'inspect')
+
+      const testStr = JSON.stringify({ test: 'test' })
+
+      requestClient['prettifyString'](testStr)
+
+      expect(UtilsModule.inspect).toHaveBeenCalledWith(testStr, {
+        colors: true
+      })
+    })
+  })
+
+  describe('disableVerboseMode', () => {
+    it('should eject interceptor', () => {
+      const requestClient = new RequestClient('')
+
+      const interceptorSpy = jest.spyOn(
+        requestClient['httpClient'].interceptors.response,
+        'eject'
+      )
+
+      const interceptorId = 100
+
+      requestClient['httpInterceptor'] = interceptorId
+      requestClient.disableVerboseMode()
+
+      expect(interceptorSpy).toHaveBeenCalledWith(interceptorId)
+    })
+  })
+
   describe('handleError', () => {
     const requestClient = new RequestClient('https://localhost:8009')
     const randomError = 'some error'
@@ -293,3 +693,11 @@ const createCertificate = async (): Promise<pem.CertificateCreationResult> => {
     )
   })
 }
+
+/**
+ * Returns a random status code.
+ * @param statuses - an array of available statuses.
+ * @returns - random item from an array of statuses.
+ */
+const getRandomStatus = (statuses: number[]) =>
+  statuses[Math.floor(Math.random() * statuses.length)]

src/test/SessionManager.spec.ts

@@ -3,7 +3,7 @@ import { RequestClient } from '../request/RequestClient'
 import * as dotenv from 'dotenv'
 import axios from 'axios'
 import { Logger, LogLevel } from '@sasjs/utils/logger'
-import { Session, Context } from '../types'
+import { Session, SessionState, Context } from '../types'
 
 jest.mock('axios')
 const mockedAxios = axios as jest.Mocked<typeof axios>
@@ -11,21 +11,34 @@ const requestClient = new (<jest.Mock<RequestClient>>RequestClient)()
 
 describe('SessionManager', () => {
   dotenv.config()
+  process.env.SERVER_URL = 'https://server.com'
 
   const sessionManager = new SessionManager(
     process.env.SERVER_URL as string,
     process.env.DEFAULT_COMPUTE_CONTEXT as string,
     requestClient
   )
+  const sessionStateLink = '/compute/sessions/session-id-ses0000/state'
+  const sessionEtag = 'etag-string'
 
-  const getMockSession = () => ({
+  const getMockSession = (): Session => ({
     id: ['id', new Date().getTime(), Math.random()].join('-'),
-    state: '',
-    links: [{ rel: 'state', href: '', uri: '', type: '', method: 'GET' }],
+    state: SessionState.NoState,
+    links: [
+      {
+        href: sessionStateLink,
+        method: 'GET',
+        rel: 'state',
+        type: 'text/plain',
+        uri: sessionStateLink
+      }
+    ],
     attributes: {
       sessionInactiveTimeout: 900
     },
-    creationTimeStamp: `${new Date(new Date().getTime()).toISOString()}`
+    creationTimeStamp: `${new Date(new Date().getTime()).toISOString()}`,
+    stateUrl: sessionStateLink,
+    etag: sessionEtag
   })
 
   afterEach(() => {
@@ -89,19 +102,21 @@ describe('SessionManager', () => {
   describe('waitForSession', () => {
     const session: Session = {
       id: 'id',
-      state: '',
+      state: SessionState.NoState,
       links: [{ rel: 'state', href: '', uri: '', type: '', method: 'GET' }],
       attributes: {
         sessionInactiveTimeout: 0
       },
-      creationTimeStamp: ''
+      creationTimeStamp: '',
+      stateUrl: sessionStateLink,
+      etag: sessionEtag
     }
 
     beforeEach(() => {
       ;(process as any).logger = new Logger(LogLevel.Off)
     })
 
-    it('should reject with NoSessionStateError if SAS server did not provide session state', async () => {
+    it('should log http response code and session state if SAS server did not provide session state', async () => {
       let requestAttempt = 0
       const requestAttemptLimit = 10
       const sessionState = 'idle'
@@ -124,15 +139,17 @@ describe('SessionManager', () => {
         sessionManager['waitForSession'](session, null, 'access_token')
       ).resolves.toEqual(sessionState)
 
+      const sessionStateUrl = process.env.SERVER_URL + session.stateUrl
+
       expect(mockedAxios.get).toHaveBeenCalledTimes(requestAttemptLimit)
       expect((process as any).logger.info).toHaveBeenCalledTimes(3)
       expect((process as any).logger.info).toHaveBeenNthCalledWith(
         1,
-        `Polling: ${process.env.SERVER_URL}`
+        `Polling: ${sessionStateUrl}`
       )
       expect((process as any).logger.info).toHaveBeenNthCalledWith(
         2,
-        `Could not get session state. Server responded with 304 whilst checking state: ${process.env.SERVER_URL}`
+        `Could not get session state. Server responded with 304 whilst checking state: ${sessionStateUrl}`
       )
       expect((process as any).logger.info).toHaveBeenNthCalledWith(
         3,
@@ -142,7 +159,7 @@ describe('SessionManager', () => {
 
     it('should throw an error if there is no session link', async () => {
       const customSession = JSON.parse(JSON.stringify(session))
-      customSession.links = []
+      customSession.stateUrl = ''
 
       mockedAxios.get.mockImplementation(() =>
         Promise.resolve({ data: customSession.state, status: 200 })
@@ -156,6 +173,7 @@ describe('SessionManager', () => {
     it('should throw an error if could not get session state', async () => {
       const gettingSessionStatus = 500
       const sessionStatusError = `Getting session status timed out after 60 seconds. Request failed with status code ${gettingSessionStatus}`
+      const sessionStateUrl = process.env.SERVER_URL + session.stateUrl
 
       mockedAxios.get.mockImplementation(() =>
         Promise.reject({
@@ -168,7 +186,7 @@ describe('SessionManager', () => {
         })
       )
 
-      const expectedError = `Error while waiting for session. Error while getting session state. GET request to ${process.env.SERVER_URL}?wait=30 failed with status code ${gettingSessionStatus}. ${sessionStatusError}`
+      const expectedError = `Error while waiting for session. Error while getting session state. GET request to ${sessionStateUrl}?wait=30 failed with status code ${gettingSessionStatus}. ${sessionStatusError}`
 
       await expect(
         sessionManager['waitForSession'](session, null, 'access_token')
@@ -427,4 +445,45 @@ describe('SessionManager', () => {
       )
     })
   })
+
+  describe('createAndWaitForSession', () => {
+    it('should create session with etag and stateUrl', async () => {
+      const etag = sessionEtag
+      const customSession: any = getMockSession()
+      delete customSession.etag
+      delete customSession.stateUrl
+
+      jest.spyOn(requestClient, 'post').mockImplementation(() =>
+        Promise.resolve({
+          result: customSession,
+          etag
+        })
+      )
+
+      jest
+        .spyOn(sessionManager as any, 'setCurrentContext')
+        .mockImplementation(() => Promise.resolve())
+
+      sessionManager['currentContext'] = {
+        name: 'context name',
+        id: 'string',
+        createdBy: 'string',
+        version: 1
+      }
+
+      jest
+        .spyOn(sessionManager as any, 'getSessionState')
+        .mockImplementation(() =>
+          Promise.resolve({ result: SessionState.Idle, responseStatus: 200 })
+        )
+
+      const expectedSession = await sessionManager['createAndWaitForSession']()
+
+      expect(customSession.id).toEqual(expectedSession.id)
+      expect(
+        customSession.links.find((l: any) => l.rel === 'state').href
+      ).toEqual(expectedSession.stateUrl)
+      expect(expectedSession.etag).toEqual(etag)
+    })
+  })
 })

src/types/RequestClient.ts

@@ -0,0 +1,55 @@
+import { CsrfToken } from '..'
+
+export interface HttpClient {
+  get<T>(
+    url: string,
+    accessToken: string | undefined,
+    contentType: string,
+    overrideHeaders: { [key: string]: string | number }
+  ): Promise<{ result: T; etag: string }>
+
+  post<T>(
+    url: string,
+    data: any,
+    accessToken: string | undefined,
+    contentType: string,
+    overrideHeaders: { [key: string]: string | number }
+  ): Promise<{ result: T; etag: string }>
+
+  put<T>(
+    url: string,
+    data: any,
+    accessToken: string | undefined,
+    overrideHeaders: { [key: string]: string | number }
+  ): Promise<{ result: T; etag: string }>
+
+  delete<T>(
+    url: string,
+    accessToken: string | undefined
+  ): Promise<{ result: T; etag: string }>
+
+  getCsrfToken(type: 'general' | 'file'): CsrfToken | undefined
+  saveLocalStorageToken(accessToken: string, refreshToken: string): void
+  clearCsrfTokens(): void
+  clearLocalStorageTokens(): void
+  getBaseUrl(): string
+}
+
+export interface SASjsRequest {
+  serviceLink: string
+  timestamp: Date
+  sourceCode: string
+  generatedCode: string
+  logFile: string
+  SASWORK: any
+}
+
+export interface SasjsParsedResponse<T> {
+  result: T
+  log: string
+  etag: string
+  status: number
+  printOutput?: string
+}
+
+export type VerboseMode = boolean | 'bleached'

src/types/SASjsConfig.ts

@@ -1,5 +1,6 @@
 import * as https from 'https'
 import { ServerType } from '@sasjs/utils/types'
+import { VerboseMode } from '../types'
 
 /**
  * Specifies the configuration for the SASjs instance - eg where and how to
@@ -45,6 +46,10 @@ export class SASjsConfig {
    * Set to `true` to enable additional debugging.
    */
   debug: boolean = true
+  /**
+   * Set to `true` to enable verbose mode that will log a summary of every HTTP response.
+   */
+  verbose?: VerboseMode = true
   /**
    * The name of the compute context to use when calling the Viya services directly.
    * Example value: 'SAS Job Execution compute context'

src/types/SASjsRequest.ts

@@ -1,12 +0,0 @@
-/**
- * Represents a SASjs request, its response and logs.
- *
- */
-export interface SASjsRequest {
-  serviceLink: string
-  timestamp: Date
-  sourceCode: string
-  generatedCode: string
-  logFile: string
-  SASWORK: any
-}

src/types/Session.ts

@@ -1,15 +1,34 @@
 import { Link } from './Link'
+import { SessionManager } from '../SessionManager'
+
+export enum SessionState {
+  Completed = 'completed',
+  Running = 'running',
+  Pending = 'pending',
+  Idle = 'idle',
+  Unavailable = 'unavailable',
+  NoState = '',
+  Failed = 'failed',
+  Error = 'error'
+}
 
 export interface Session {
   id: string
-  state: string
+  state: SessionState
+  stateUrl: string
   links: Link[]
   attributes: {
     sessionInactiveTimeout: number
   }
   creationTimeStamp: string
+  etag: string
 }
 
 export interface SessionVariable {
   value: string
 }
+
+export interface JobSessionManager {
+  session: Session
+  sessionManager: SessionManager
+}

src/types/index.ts

@@ -6,10 +6,12 @@ export * from './Job'
 export * from './JobDefinition'
 export * from './JobResult'
 export * from './Link'
+export * from './Login'
 export * from './SASjsConfig'
-export * from './SASjsRequest'
+export * from './RequestClient'
 export * from './Session'
 export * from './UploadFile'
 export * from './PollOptions'
 export * from './WriteStream'
 export * from './ExecuteScript'
+export * from './errors'

src/utils/compareTimestamps.ts

@@ -1,4 +1,4 @@
-import { SASjsRequest } from '../types/SASjsRequest'
+import { SASjsRequest } from '../types'
 
 /**
  * Comparator for SASjs request timestamps.

src/utils/constants.ts

@@ -1,2 +0,0 @@
-export const SASJS_LOGS_SEPARATOR =
-  'SASJS_LOGS_SEPARATOR_163ee17b6ff24f028928972d80a26784'

src/utils/index.ts

@@ -2,7 +2,6 @@ export * from './appendExtraResponseAttributes'
 export * from './asyncForEach'
 export * from './compareTimestamps'
 export * from './convertToCsv'
-export * from './constants'
 export * from './createAxiosInstance'
 export * from './delay'
 export * from './fetchLogByChunks'