REST Invoke API returns HTTP 401 Unauthorized

Products

• CA Application Test
• CA Continuous Application Insight (PathFinder)
• Service Virtualization

Issue/Introduction

When REST Invoke API call is tested in DevTest, sometimes get the "HTTP 401 Unauthorized" response.

Example API call is "http://host:port/api/Dcm/VSEs/VSE/"

The API call can be tested from Postman, DevTest, SoapUI..

Cause

Here are few causes could give the HTTP Unauthorized response:

. Incorrect header information.
. Incorrect Port number.
 

Environment

All supported DevTest releases.

Resolution

Providing the correct Authorization information/Port number resolved the issue.