Detect runner type in postman/newman pre-request script

Question

Question:

How do I detect that newman is running the requests instead of postman in the prerequest?

Context:

I'm using the new postman feature pm.execution.skipRequest() to skip requests in the prerequest script (see this if you're interested). Within postman this works great, but it's not implemented within newman yet. I'm using newman as collection runner, which will then throw an error and cancel the iteration.

Answer 1

Use an environment variable and set the default to "Collection". When you send the request using Newman, use the command line option to overwrite that environment variable with the string "Newman" which you can then use to detect where the request is running from.

https://github.com/postmanlabs/newman

https://github.com/postmanlabs/newman#newman-run-collection-file-source-options

--env-var "<environment-variable-name>=<environment-variable-value>"