Once you have the configuration requirements, you're ready to set up a client library to handle Google Ads API calls. Since each client library is configured differently, follow the instructions linked to below for your particular programming language. You can also reference the videos for each respective configuration flow.
Configure client library with OAuth2 credentials
Check out the video demo for each flow
Web app flow
Desktop app flow
Verify your configuration
When you've completed setting up OAuth, make a call to the Google Ads API using one of
the provided code examples in the client library. Choose a simple example, like
GetCampaigns, to verify your setup.