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I'm attempting to connect to an oAuth 1.0 authenticated endpoint but the signature that Postman creates does not match the signature we expect in our code. As far as I can see all the parameters that I have added are correct (Url, consumer_key, consumer_secret, nonce, timestamp, HMAC-SHA1) but Postman just seems to generate a different signature with these details. Does anyone know how Postman creates the signature?

I Edmo
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  • When I use postman, I get a success message from the API I'm calling. My guess is a HASH of the URL I'm calling, then HMAC_SHA1 of that results in signature in hex format? – Robert Achmann Aug 10 '17 at 19:03
  • Not sure if you already figured out the answer to this question, but you could try grabbing the raw `curl` command that Postman generates to see if the signature looks as expected. To get the curl command for any given endpoint you can simply click on `Code` underneath the `Save` button. – tobias Dec 08 '19 at 09:28

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