fix: callback type checking fixes #304

sasjs-tests/README.md

@@ -55,6 +55,7 @@ filename mc url "https://raw.githubusercontent.com/sasjs/core/main/all.sas";
 %inc mc;
 filename ft15f001 temp;
 parmcards4;
+  %webout(FETCH)
   %webout(OPEN)
   %macro x();
   %do i=1 %to &_webin_file_count; %webout(OBJ,&&_webin_name&i) %end;
@@ -63,6 +64,7 @@ parmcards4;
 ;;;;
 %mm_createwebservice(path=/Public/app/common,name=sendObj)
 parmcards4;
+  %webout(FETCH)
   %webout(OPEN)
   %macro x();
   %do i=1 %to &_webin_file_count; %webout(ARR,&&_webin_name&i) %end;

src/SASjs.ts

@@ -550,7 +550,10 @@ export default class SASjs {
       ...this.sasjsConfig,
       ...config
     }
-
+    if (
+      typeof loginRequiredCallback === 'function' ||
+      typeof loginRequiredCallback === 'undefined'
+    ) {
       if (config.serverType === ServerType.SasViya && config.contextName) {
         if (config.useComputeApi) {
           return await this.computeJobExecutor!.execute(
@@ -577,6 +580,13 @@ export default class SASjs {
           loginRequiredCallback
         )
       }
+    } else {
+      return Promise.reject(
+        new ErrorResponse(
+          `Invalid loginRequiredCallback parameter was provided. Expected Callback function but found ${typeof loginRequiredCallback}`
+        )
+      )
+    }
   }
 
   /**