TI-API: Getting error while trying authenticate in OAuth 2

Suresh,

A few things to confirm:

1.  Confirm that you are using your v2 credentials (not v1);  You can not use the v2 APIs with v1 credentials

2. If you are using your v2 credentials with the v2 APIs:

  You may be sending your credentials as a JSON payload, while the API is expecting Form URL-encoded data.

Details on the authentication requirements can be found at https://api-portal.ti.com/order-api-authentication

For reference, the body in a sample Insomnia request would look like the following:

And the header should contain:

Some additional information:

• The URL to generate token is https://transact.ti.com/v1/oauth/accesstoken
• When you pass in “form-urlencoded” payload it should be in this format:
  "grant_type=client_credentials&client_id=<your key>&client_secret=<your secret>"

Below is the full curl command that you can use to generate the oAuth token:

   curl --request POST \
       --url transact.ti.com/.../accesstoken \   
       --header 'Content-Type: application/x-www-form-urlencoded' \   
       --data grant_type=client_credentials \   
       --data client_id=<your key> \   
       --data client_secret=<your secret>

If you continue to see the issue, please provide an example of the request you're sending (please without the key and secret).