conf := &oauth2.Config{ ClientID: "client_id", ClientSecret: "client_secret", RedirectURL: "http://localhost:8080/callback", Scopes: []string{"read", "write"}, Endpoint: google.Endpoint, } url := conf.AuthCodeURL("state", oauth2.AccessTypeOffline)
conf := &oauth2.Config{ ClientID: "client_id", RedirectURL: "http://localhost:8080/callback", Endpoint: oauth2.Endpoint{ AuthURL: "https://auth.myapp.com/authorize", TokenURL: "https://auth.myapp.com/token", }, } url := conf.AuthCodeURL("state", oauth2.SetAuthURLParam("approval_prompt", "force"))In this example, the Config object contains information about the application's client ID, redirect URL, and custom authorization and token URLs. The AuthCodeURL function is called with a state parameter and a custom authorization URL parameter of "approval_prompt=force," which will force the user to approve the application's access request every time they visit the authorization page. Overall, the oauth2 package in the "golang.org/x" library provides a convenient and extensible framework for implementing OAuth2 authentication in Go applications.