I am making a HTTP POST callout from Salesforce. I am getting a HTTP 200 response code from the remote server but I am not getting the response body in the response. However, when I am using the same request body to send the data from postman, I am getting the response body.

Here's the Salesforce code I am using:

HttpRequest req = new HttpRequest();            

String username = 'ZXXXXXXXX';
String password = 'XXXXXXXXXXXXXXX';
Blob headerValue = Blob.valueOf(username + ':' + password);
String authorizationHeader = 'Basic ' +
req.setHeader('Authorization', authorizationHeader);
req.setHeader('Content-Type', 'application/json');


System.debug('json serialized object: 

HttpResponse res = new Http().send(req);

System.debug('Response from Server in Salesforce: '+res);

I am using the reference code depicted here: How to make a post request to some other server from apex controller

Am I doing something wrong here?

First Edit: In the logs, I am printing the entire response object, this is what I see:

USER_DEBUG [50]|DEBUG|Response from Dynamics in Salesforce: System.HttpResponse[Status=OK, StatusCode=200]

  • Why are you saying you are not getting response? did you print the response body? Try to print res.getBody() and see what it prints.
    – metasync
    Mar 12, 2018 at 23:25
  • @datasert I am not getting response body. I am getting only response code and response status. Mar 12, 2018 at 23:33

2 Answers 2


I got the response when I used res.getBodyAsBlob().toString();

  • I am also facing the same issue.When i try to use like above it saying argument cannot be null
    – Pavan tej
    Aug 7, 2018 at 16:24
  • Do System.debug() for all possible response methods. One of them should have a response. Aug 8, 2018 at 23:44

When you print the response object as is, Salesforce doesn't log the body as body could be huge. Try logging the body explicitly.

System.debug('Response from Server in Salesforce: '+res.getBody());
  • Since I wasnt getting anything in res.getBody() I printed the entire res object. But to my point, I am not getting res.getBody() even if I print it explicitly Mar 12, 2018 at 23:35
  • If you already tried to print body, then Server you calling must be returning different response than when you post via Postman. Because of fundamental nature of http callouts, I don't think Salesforce would be any issue here. I would first try to proxy the call via some third party and see what shows up.
    – metasync
    Mar 12, 2018 at 23:37
  • I got the response when I used res.getBodyAsBlob().toString() Mar 13, 2018 at 0:06

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