tests with token authentication

[Jose Miguel liriano]

hello;

I am trying to test an API that must first be authenticated so that a token is returned and with that token the API services are tested.

please help me.

[DT]

So you need to authenticate first like

1. Send a request (or several, depending on your authentication/authorization) setup using HTTP Request sampler
2. Extract the token from the response using a suitable Post-Processor and save it into a JMeter variable
3. Use HTTP Header Manager to add the token to the subsequent requests which need authentication
   

See JMeter Regular Expression Extractor: How to Extract Tokens and Session IDs to Variables article for more details.