OAuth 2.0 grant authorization_code redirects to oauth_login.do

rerogers — Mon, 09 Jun 2025 17:44:08 GMT

I am very new to servicenow and if I need to post this somewhere else please let me know. I am trying to create an OAuth code flow from an external service. This is how I have my servicenow application registry configured:

When I make the OAuth code grant flow request everything works as expected and I receive the authorization code. However, when I grant type authorization_code request I am redirected to https://dev#.service-now.com/oauth_login.do URL and I do not receive an access token as expected.

I am making this request from a Laravel PHP controller so there is no user to complete the login page.

Here is a snippet of my PHP code:

$fields = [ 'grant_type' => 'authorization_code', 'client_id' => $fields->client, 'client_secret' => $fields->secret, 'code' => $q['code'], 'redirect_uri' => "$hostUrl/externalurl/oauth/response", 'response_type' => 'code', 'state' => $q['state'] ]; //url-ify the data for the POST $fields_string = http_build_query($fields); //open connection $ch = curl_init(); //set the url, number of POST vars, POST data curl_setopt($ch, CURLOPT_URL, $url); curl_setopt($ch, CURLOPT_POST, true); curl_setopt($ch, CURLOPT_POSTFIELDS, $fields_string); curl_setopt($ch, CURLOPT_HTTPHEADER, array( 'cache-control: no-cache', 'content-type: application/x-www-form-urlencoded' )); curl_setopt($ch,CURLOPT_RETURNTRANSFER, true); $result = curl_exec($ch);

Re: OAuth 2.0 grant authorization_code redirects to oauth_login.do

rerogers — Mon, 09 Jun 2025 23:10:12 GMT

I figured out what I was doing wrong, I was reusing the authentication code route instead of the oauth token route.

question OAuth 2.0 grant authorization_code redirects to oauth_login.do in Community Central forum

OAuth 2.0 grant authorization_code redirects to oauth_login.do

Re: OAuth 2.0 grant authorization_code redirects to oauth_login.do