Postman Tutorial - API Key Authorization in Postman

Thx friend!

can anyone clear please where i can find API Key in backend

Thank you for this. This is more clear than any documentation I've looked at!

Why the api is throwing error on sending key in header?

How to add flat_settings in the API

Indeed a very good explanation and this is first step in order to validate any API

How do I validate authentication token?

Thank you. Very clear explanation

hello sir how to generate api key?

I want to do it with my salesforce instance, I don't wanna generate the authentication token because salesforce kinda expires it every 8 hours, so which other authentication methods do you think I should use except Bearer one.