this is my auth type OAuth Type: Authorization Code/Implicit so i redirect user to to auth page after clicking access , it'll redirect back to website with code , stat parameters according to the documentation , this code should work as access token for api calls but it doesn't work i thought maybe i need to refresh and get token by sending a post request to https://authz.constantcontact.com/oauth2/default/v1/token so i send this post request $response = $client->request('POST', 'https://authz.constantcontact.com/oauth2/default/v1/token' , [ 'form_params' => [ 'client_id' => env('CONSTANTCONTACT_CLIENT_ID') , 'redirect_uri' => env('CONSTANTCONTACT_REDIRECT_URI'), 'code' => $code, 'code_verifier' => 'somerandomstring', ], 'headers' => [ 'Content-Type' => 'application/x-www-form-urlencoded', 'Accept' => 'application/json' ] ]); and i get {"error":"invalid_client","error_description":"Client authentication failed. Either the client or the client credentials are invalid."} im so confused nothing seems to work as documentation says
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