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(Go) GitHub OAuth2 Access TokenSee more OAuth2 ExamplesDemonstrates how to get a GitHub OAuth2 access token from a desktop application or script.Note: This example requires Chilkat v10.1.2 or greater.
// To further clarify, see OAuth 2.0 Authorization Flow oauth2 := chilkat.NewOAuth2() // This should be the port in the localhost callback URL for your app. // The callback URL would look like "http://localhost:3017/" if the port number is 3017. oauth2.SetListenPort(3017) oauth2.SetAuthorizationEndpoint("https://github.com/login/oauth/authorize") oauth2.SetTokenEndpoint("https://github.com/login/oauth/access_token") // Replace with your actual Client ID oauth2.SetClientId("CLIENT_ID") // This is for Require Proof Key for Code Exchange (PKCE) // See OAuth2 PKCE Explained oauth2.SetCodeChallenge(true) oauth2.SetCodeChallengeMethod("S256") // To force the OAuth consent screen to reappear (even if previously granted) oauth2.AddAuthQueryParam("prompt","consent") // Begin the OAuth2 Authorization code flow. This returns a URL that should be loaded in a browser. url := oauth2.StartAuth() if oauth2.LastMethodSuccess() != true { fmt.Println(oauth2.LastErrorText()) oauth2.DisposeOAuth2() return } // Launch the default browser on the system and navigate to the url. // The LaunchBrowser method was added in Chilkat v10.1.2. success := oauth2.LaunchBrowser(*url) if success == false { fmt.Println(oauth2.LastErrorText()) oauth2.DisposeOAuth2() return } // Wait for the user to approve or deny authorization in the browser. numMsWaited := 0 for (numMsWaited < 90000) && (oauth2.AuthFlowState() < 3) { oauth2.SleepMs(100) numMsWaited = numMsWaited + 100 } // If the browser does not respond within the specified time, AuthFlowState will be: // // 1: Waiting for Redirect – The OAuth2 background thread is waiting for the browser's redirect request. // 2: Waiting for Final Response – The thread is awaiting the final access token response. // In either case, cancel the background task initiated by StartAuth. if oauth2.AuthFlowState() < 3 { oauth2.Cancel() fmt.Println("No response from the browser!") oauth2.DisposeOAuth2() return } // Check AuthFlowState to determine if authorization was granted, denied, or failed: // // 3: Success – OAuth2 flow completed, the background thread exited, and the successful response is in AccessTokenResponse. // 4: Access Denied – OAuth2 flow completed, the background thread exited, and the error response is in AccessTokenResponse. // 5: Failure – OAuth2 flow failed before completion, the background thread exited, and error details are in FailureInfo. if oauth2.AuthFlowState() == 5 { fmt.Println("OAuth2 failed to complete.") fmt.Println(oauth2.FailureInfo()) oauth2.DisposeOAuth2() return } if oauth2.AuthFlowState() == 4 { fmt.Println("OAuth2 authorization was denied.") fmt.Println(oauth2.AccessTokenResponse()) oauth2.DisposeOAuth2() return } if oauth2.AuthFlowState() != 3 { fmt.Println("Unexpected AuthFlowState:", oauth2.AuthFlowState()) oauth2.DisposeOAuth2() return } fmt.Println("OAuth2 authorization granted!") fmt.Println("Access Token = ", oauth2.AccessToken()) oauth2.DisposeOAuth2() |
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