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OAuth 2.0 is the industry-standard protocol for authorization. Go has built-in support for this protocol and today we’ll build a simple application. The application will use the Facebook API to authorize a user.
If you need to clarify what oauth2 is and how it works you can take a look at the introduction from DigitalOcean. There are some videos as well.
The very first step of building our program is creating a new Facebook application.
