Branching and looping

When running a collection, you can branch and loop across API requests in Postman using the postman.setNextRequest("request_name"); function.

Set the request to be executed next

postman.setNextRequest("request_name");

Stop workflow execution

postman.setNextRequest(null);

Some salient points about postman.setNextRequest():

Specify the name or ID of the subsequent request and the collection runner will take care of the rest.
It can be used in the pre-request or the test script. In case of more than one assignment, the last set value is considered.
If postman.setNextRequest() is absent in a request, the collection runner defaults to linear execution and moves to the next request

For more information about control flow, read about building workflows.

Test examples Postman Sandbox