I am trying to pull stock quantity from amazon seller central catalog API using the product ASIN.
The issue I am facing now is with API authorization, I was expecting to send the clientId and clientSecret perhaps and retrieve the data, but the authentication process Amazon has put in place turns out to be confusing and lacks samples I could use.
I would really appreciate if anyone could share their implementation either using any of Amazon SDK (PHP or JS preferably) or just steps used in Postman.