Hey everyone,
I have been working on integrating third-party APIs using Postman and wanted to get some insights on best practices. While I can successfully make requests and handle responses…, I would love to improve efficiency, security., and troubleshooting.
Here are a few things I am considering :-
Authentication Handling – What’s the best way to securely manage API keys or OAuth tokens in Postman: ??
Environment & Variables – How do you efficiently set up environments for staging, production, etc.: ??
Error Handling & Debugging – What strategies do you use to troubleshoot API failures or unexpected responses: ??
Automating API Testing – How can I set up automated tests in Postman to validate API responses: ??
Rate Limits & Performance – Any tips for handling API rate limits and optimizing request performance; ??
I would appreciate any expert insights or real-world experiences !! I have already gone through this resource https://learning.postman.com/docs/integrations/intro-integrations/flutter but still looking for some more help.
Looking forward to learning from this awesome community.
Thanks !!
With Regards,
Derek Theler
Hey @derektehelr, welcome to the community 
This is a HUGE set of questions and I’m not sure a single response can answer everything 
Here’s what I have simply and we can dig into any specifics as need be:
Auth - Use the Postman Vault. That’s the long and short answer
Environments/Variables - I’m not completely sure what you mean by efficiently set them up for staging/production, because the answer that comes to my head is simply “click the Add button”. Luckily environments only need to be setup once. But do be careful about how you scope variables. A lot of people throw all their variables into the environment, but you definitely could use collection variables as well if that makes sense. Check out the variable scope docs.
Error handling - Always add assertions to your requests to make sure you’re getting the expected status code back. Read the API docs from the service you’re integrating with do get a sense of what to expect.
Automated API testing - What are you looking for here? Contract tests? End-to-end tests? What are you trying to accomplish?
Rate limits and performance - How are you using Postman in your development flow? Unless you’re doing something really intense or the service you’re integrating with has super low rate limits, I can’t imagine you’d run into issues here. For performance, If you don’t own the API itself, there’s not much you can do.
Happy to dig into anything here if you need!
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