Fetching User Token
Using the “state” from step 10, “code verifier” from step 12, and the “authorization code” from step 9, you need to make a network call to Truecaller’s backend so as to fetch the access token :
POST
https://oauth-account-noneu.truecaller.com/v1/token
Headers
Request Body
200: OK Success
{ "access_token": "some-access-token", "expires_in": 3600, "token_type": "Bearer" }
400: Bad Request - If grant type is not supported 403: Forbidden - If client id is invalid 500: Internal Server Error - Unexpected error on the server side 400: Bad Request - Some of the parameters are empty in the request 403: Forbidden Valid grant type but not allowed for the client 403: Forbidden Invalid auth code provided 403: Forbidden Invalid/expired auth code in provided 403: Forbidden Invalid/expired code verifier is provided 429: Too Many Requests If the number of requests exceeds the allowed limit 503: Service Unavailable Resource unavailable due to server-side issue
Sample cURL request :
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