JSON Schema validation in Postman

Writing a JSON Schema is a good and effective way to test the structure of the HTTP response body.

Unfortunately, anyone new to writing a JSON schema will assume that this is an easy task. This often leads to incorrect JSON schema and worst, tests that never fail.

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[vdespa]

👉 Want to learn more about Postman? Check my Postman online course.

[Przemek_K_]

I'm starting to use Postman at work and your tips are incredibly valuable. Thank You very much!

[daniellister]

I'm about to start creating my first RESTful API, and I have to say that this video alone is going to allow me to focus more on writing the code than the documentation etc. Thank you, keep up the good work Valentin.

[lucabamo]

The tutorial was very useful for me. I have not understood how schema validation works until I watch this video. Thank you, Valentin!

[sipinthatbub]

Thanks a lot! I moved from not even knowing what a schema is to being able to build a basic one and test it.

[mireyca]

This basic json schema validation help me a lot! Thank you very much Valentin!

[rajatt]

Thanks for creating these tutorials.
Honestly, I've learned a lot from your UDEMY course and these tutorials.

[teleport]

You are just the greatest teacher! How do you find so simple words to explain complex things, I just don't get it... But thank you very much for your hard work! Bought your excellent Postman course on Udemy and several friends did the same after my advice. Again, thank you! Waiting for the new videos about JSON-Schema from you.

[rajiv]

Thank you Valentin.. ! It was very helpful at right time of testing.

[djmileno]

Great video! Nice and clear! Straight to the point!

[Kariemessi]

Hey Valentin, thanks for this video!
I just finished your Udemy course but I struggle a bit to follow up with this one here, are there any video/documentation that I should be aware maybe before watching the Schema?
Thanks a lot!

[gustavosouza]

Extremely helpfull this video, I've looking for something to improve my tests in API beyond the status code, body and header....thanks a lot!

[sumitghewade]

Hi Valentin Despa, Thank you for sharing such valuable educational videos. Could you please share the link where did you learn this from. Is there a need to create a mock server for the testing purposes?

[janithdesilva]

Hi there, How we can validate a json schema which is dynamically changing?

[mylenna]

Your videos are so useful! Thank you :)

[AndreaBoboOboe]

Hi Valentin. Thank You very much for sharing all of this tips! I have a question : it's possible to retrive the schemas from external sources (for example from files or somewhere in the cloud) without write maybe long variables in the Postman code? Thank you!

[gsVerka]

@valentin Despa. I am finding your videos USEFUL. Thank you for sharing your knowledge with the world. One question: { "Value": ""} ---let's say this is the response body. What can I write in "properties": { "Value": {"type": should be the type I am expecting blank value. Thank you.

[satinderpal]

Hi, schema of my response body is dynamic i.e... Sometimes response body is
{"address": xyz street, "zip code": 12345, "city": ABCD}.
Sometimes it's
{"address": xyz street, "zip code": 12345}.
How can i code"required" in the Tests in such a scenario. Thanks

[maorlv]

Thank you! that was very helpful ! :-)

[jadedrakerider]

What is the rationale of assuming every property is option unless specified otherwise? That seems designed to give false negatives.