Adwords API on localhost with PHP - Getting oAuth redirect_uri_mismatch error

[ste...@stonecreate.com]

Hope someone can help.

Im attempting to set up a test environment to interact with Google adword campaigns using php.

I've downloaded the Google Ads APIs Client Library for PHP and entered my developerToken, userAgent, clientCustomerId, client_id and client_secret as per the instructions (https://github.com/googleads/googleads-php-lib)

I've ran GetRefreshToken.php via php in console and visited the link it generated but it just says

400. That’s an error. Error: redirect_uri_mismatch Application: Google Statistics

I researched the error and it said i needed to have the correct REDIRECT URIS in my Google Developer Console. I've tried lots of variations but nothing seems to work. It's currently set at:

http://localhost:8888/

I'm running the API on localhost using MAMP, what should the redirect URI be?