I am trying to generate the access token using OAUTH 2.0 . Here is the full code but repsonse.getBody() is not giving me the JSON string.

I have 2 instances of salesforce sandbox api, data flow is from salesforceA(source) to salesforceB(destination)

Both users are having system admin profile.

In salesforceA(source) I have created a connected app, so I get clientID and client secret, callback URL is: http://ap2.salesforce.com/apex/MyResponse where Myresponse is a visualforce page.

In salesforceB(destination), in remote site settings I have registered the URL "https://login.salesforce.com/services/oauth/token'

apex controller and visual force page is in salesforceB(destination)

public class restExample1
  public String ClientSecret{get;set;}
  public String ClientID{get;set;}
  public String UserName{get;set;}
  public String Password{get;set;}
  public String Result{get;set;}
  public String accessToken{get;set;}

  public PageReference GetAccessToken()
HttpRequest request=new HttpRequest();



String reqbody = 'grant_type=password&client_id='+clientId+'&client_secret='+clientSecret+'&username='+username+'&password='+password;


Http p=new Http();

HttpResponse response=p.send(request);


system.debug('@@@result = '+result);

return null;

Myresponse visualforce page

<apex:page controller="restExample1">
<apex:form >
  <apex:pageBlock title="RestApiExample">

       <apex:pageBlockSection title="OAuth2.0 username & Password"

       <apex:pageBlockSectionItem >
            <apex:outputLabel value="ClientID"/>

            <apex:inputText value="{!ClientID}"/>


       <apex:pageBlockSectionItem >
            <apex:outputLabel value="ClientSecret"/>

            <apex:inputText value="{!ClientSecret}"/>


       <apex:pageBlockSectionItem >
            <apex:outputLabel value="UserName"/>

            <apex:inputText value="{!UserName}"/>


       <apex:pageBlockSectionItem >
            <apex:outputLabel value="Password"/>

            <apex:inputText value="{!Password}"/>



       <apex:pageBlockButtons >

         <apex:commandButton value="Get Access Token"


  <apex:pageBlock title="Access Token"




  • What is repsonse.getBody() giving you ?
    – superfell
    Commented Jun 16, 2016 at 4:07
  • for sandboxes, I've used setEndPoint('https://test.salesforce.com/services/oauth2/token');
    – cropredy
    Commented Jun 16, 2016 at 4:08
  • response.getBody() is giving me HTML code. Commented Jun 16, 2016 at 4:14
  • if I use endpoint as 'test.salesforce.com/services/oauth2/token', then I in debug logs I getting authenticaltion faliure "result = {"error":"invalid_grant","error_description":"authentication failure"" Commented Jun 16, 2016 at 4:18

1 Answer 1


Please do below two corrections:

Set the content type on request

request.setHeader('Content-Type', 'application/x-www-form-urlencoded');

Correct the endpoint from https://login.salesforce.com/services/oauth/token to https://login.salesforce.com/services/oauth2/token

You have missed oauth2.

Also you need to encode the username and password.

enter image description here

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