Magento 2 Oauth error invalid signature while try to get request token from postman

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1 Answer 1


If you supply all of those values, you don't have to use the access or request routes. postman will take care of the rest.

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Typically I've noticed that some routes are slightly different; ie.

use: http://your url here/rest/V1/products?searchCriteria=

instead of: http://your url here/rest/V1/products?searchCriteria

Notice the difference with the =

The only time you need to use those routes are when you post to your callback and identity urls.

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