I would like to do the following prior to every request in my entire Postman collection: Fire off a “GET” request to see if my user has an entry in a cache If user is not in cache ----> run a Java program to generate a special value. Fire of a “POST” with the special value to populate the cache. …

I’ve only seen our Pre-Request scripts using Javascript. If you want to kick off some processing in Java, it sounds like you’d want to make that an endpoint in your API to kick off if an empty cache is returned which can be done in Postman using postman.setNextRequest in a conditional.

Hi @nicholas.DiPiazza , On the first part of your question, you can add Pre-Request scripts at the collection level as well, reference docs given below: https://learning.getpostman.com/docs/postman/scripts/test_scripts/#adding-a-test-script-to-a-collection-or-folder where you can fire off the “GET…

Can you run a java program from a Pre-request script?

Help Hub

kaustavdm (Kaustav) July 30, 2019, 8:59am 4

Hi @nicholas.DiPiazza, you cannot directly run a Java program from your Postman collection. But you can expose a local server which executes the program when a particular endpoint is hit. You can then trigger that endpoint conditionally in your collection. For more details, see this thread:

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Can you run a java program from a Pre-request script?

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