Usually to integrate with an external system that supports REST API, you need to make REST callouts from Salesforce. This blog demonstrates how to make a REST callout from Salesforce to Github.
Demo
Code Sample
Steps
- Add remote site settings
- Create GithubApi class with a method to make API call
- Copy code from code snippets and save class
- Execute the class in developer console using
System.debug(GithubApi.getGithubUserDetails('SalesforceCodes'));
