How to test a REST service that uses JWT in SoapUI

Question

I'm implementing some REST services. All my tests are made using SoapUI. Recently I decided to adopt JSON Web Token (JWT) for authentication but I could not find any support for this on SoapUI (native install or plugins, nothing).

I found some online generators like http://jwtbuilder.jamiekurtz.com/ but fill all fields, copy/paste on SoapUI again and again for every testcase is not productive at all.

I'm wondering if there is a way to test JWT stuff in SoapUI or if maybe I need another tool. Any advice?

Thanks!

Answer 1

I've found a semi-automatic way to keep a valid JWT token across TestCases without losing too much time, using an external file containing the token.

1. Have an external tool generating a valid JWT token into a file.

2. Open your project in SoapUI and add a jwt variable with the value ${=new File('/path/to/token_file.txt').text}

3. In your requests, reference your variable as a JWT header with the value ${#Project#jwt}

When the token expire, just relaunch the generator script, and SoapUI will automatically load the new token.

Answer 2

SoapUI will call your authentication server and fetch the token, then it will automatically put that token into authorization header (Bearer <token>).

Add new authorization>OAuth 2>Resource owner password credential grant

Then add your username and password into both client and resource section. Finally , put your token end-point as access token url and save the authorization profile to use in other test cases.