About TadK0

TadK0 · ‎10-23-2023

Thanks for the reply, John! According to the guidelines in https://v3.developer.constantcontact.com/api_guide/server_flow.html#step-4-get-the-access-token-and-refresh-token (Step 4: Get the Access Token and Refresh Token), "Authorization codes expire after 5 minutes (300 seconds).", but in reality they do expire in less than 5 minutes. The workaround I used is to immediately perform Step 4, right after getting an authorization code in Step 3. This process has started to return me 200/OK response consisting of access_token and refresh_token. For example, in Postman, I received the response after I requested a POST with the Headers and Body as depicted in the screenshots below. Therefore, you can close the case. Again, thanks for supporting!

TadK0 · ‎10-22-2023

Hello Support Team! We are in the process of integrating the CC v3 API with the systems of my company. A few months ago, I created a trial developer account via https://developer.constantcontact.com/. The moving pieces of the integration process are almost complete. And, everything was working as expected until last week. That is, I have now started to get the error message “400/BadRequest{ "error": "invalid_grant", "error_description": "The refresh token is invalid or expired."}” when refreshing Access Token (with the POST endpoint https://authz.constantcontact.com/oauth2/default/v1/token (along with clinet_id, client_secret and refresh_token corresponding to the account) from Postman or other custom applications. The refresh_token is obtained from as query parameter of the Redirect URI (following https://developer.constantcontact.com/api_guide/server_flow.html). I have spent a fair amount of time trying to resolve the issue on my own with no success. May you please then help us resolve the issue? Thanks! FYI - I created another app code flow in my account, but the error is still there. I can use my developer account in https://developer.constantcontact.com/api_reference without an issue though. After the integration end-to-end testing is over (planned for this month), we will be using a paid account of the company.

Re: The refresh token is invalid or expired. (400/...

The refresh token is invalid or expired. (400/BadR...