1

Using the Tooling API I need to fetch All Workflow rule Details. My below code work perfectly on the developer console Anonymous Window, but in LWC when I envoke the method with @wire shows me an error 'This session is not valid for use with the REST API errorCode INVALID_SESSION_ID'. What to do?

Note: I assume that the Error is because tooling API runs in future when it gets the free salesforce Resource and in future, Salesforce is not able to identify the Session-Id even if the same user is logged in. I don't know I am right or wrong?

My syntax

@AuraEnabled(cacheable=true)
    public static  Map<String, Object> GetWorkflowRuleList(String userId)
    {

    if(String.isEmpty(userId))
    {

        return null;
    }

    String sToken=UserInfo.getSessionId();        
    Map&lt;String, Object&gt; flowJsonData = new Map&lt;String, Object&gt;();
    String body = null;


    try{        

        String toolingSOQL='/services/data/v36.0/tooling/query?q=Select+Id,Name,TableEnumOrId,createdById,lastModifiedById+From+WorkflowRule';
        String baseURL=URL.getSalesforceBaseUrl().toExternalForm();
        String endPoint=baseURL+toolingSOQL;

        Http h = new Http();
        HttpRequest hr = new HttpRequest();
        hr.setHeader('Authorization', 'Bearer ' + sToken);
        hr.setTimeout(60000);
        hr.setHeader('Content-Type', 'application/json');
        hr.setEndpoint(endPoint);
        hr.setMethod('GET');
        HttpResponse r = h.send(hr);

        if(r.getStatusCode() == 200){
            body= r.getBody();                
        } else {
            throw new CalloutException(r.getBody());
        }
    } catch(Exception ex){
        throw ex;
    }        

    if(!String.isBlank(body)){
        flowJsonData = (Map&lt;String, Object&gt;)JSON.deserializeUntyped(body);
        System.debug('ResponseBody:::'+flowJsonData);
    }
    if(!flowJsonData.isEmpty()){
        return flowJsonData;
    } else {
        return null;
    }
}

How to avoid INVALID_SESSION_ID error? Without using tooling API is there any way to fetch detailed data for workflow rules?

shamim
  • 191
  • 6
  • 19

2 Answers2

1

You can use the visualforce page session to access tooling ID

Create a visualforce page as shown below,

<apex:page contentType="application/json"> {!$Api.Session_ID} </apex:page>

Controller to fetch the session ID

public inherited sharing class SessionHelper {

public static String getSessionId()  {
     return Test.isRunningTest() ? '' :  Page.session.getContent().toString().trim(); 
   }
  }

You can obtain the session using SessionHelper.getSessionId()

Mohith Shrivastava
  • 91,131
  • 18
  • 158
  • 209
0

You need to use named credentials for making this call. The session id in LWC cannot be used for accessing API by design due to security considerations.

Reference: https://developer.salesforce.com/docs/atlas.en-us.lightning.meta/lightning/apex_api_calls.htm#apex_api_calls

Rajiv
  • 364
  • 1
  • 2