> **setupGitHubAuth**(`_app`, `userModel`, `githubOptions`): `void`

Sets up GitHub OAuth authentication strategy.
Call this after setupAuth() in your server initialization.

## Parameters

### \_app

`Application`

### userModel

[`UserModel`](../interfaces/UserModel.md)

### githubOptions

[`GitHubAuthOptions`](../interfaces/GitHubAuthOptions.md)

## Returns

`void`