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(Mono C#) GitHub OAuth2 Access TokenDemonstrates how to get a GitHub OAuth2 access token from a desktop application or script.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Chilkat.OAuth2 oauth2 = new Chilkat.OAuth2(); bool success; // 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.ListenPort = 3017; oauth2.AuthorizationEndpoint = "https://github.com/login/oauth/authorize"; oauth2.TokenEndpoint = "https://github.com/login/oauth/access_token"; // Replace these with actual values. oauth2.ClientId = "GITHUB-CLIENT-ID"; oauth2.ClientSecret = "GITHUB-CLIENT-SECRET"; oauth2.CodeChallenge = true; oauth2.CodeChallengeMethod = "S256"; // Begin the OAuth2 three-legged flow. This returns a URL that should be loaded in a browser. string url = oauth2.StartAuth(); if (oauth2.LastMethodSuccess != true) { Debug.WriteLine(oauth2.LastErrorText); return; } // At this point, your application should load the URL in a browser. // For example, // in C#: System.Diagnostics.Process.Start(url); // in Java: Desktop.getDesktop().browse(new URI(url)); // in VBScript: Set wsh=WScript.CreateObject("WScript.Shell") // wsh.Run url // in Xojo: ShowURL(url) (see http://docs.xojo.com/index.php/ShowURL) // in Dataflex: Runprogram Background "c:\Program Files\Internet Explorer\iexplore.exe" sUrl // The GitHub account owner would interactively accept or deny the authorization request. // Add the code to load the url in a web browser here... // Add the code to load the url in a web browser here... // Add the code to load the url in a web browser here... // Now wait for the authorization. // We'll wait for a max of 30 seconds. int numMsWaited = 0; while ((numMsWaited < 30000) && (oauth2.AuthFlowState < 3)) { oauth2.SleepMs(100); numMsWaited = numMsWaited + 100; } // If there was no response from the browser within 30 seconds, then // the AuthFlowState will be equal to 1 or 2. // 1: Waiting for Redirect. The OAuth2 background thread is waiting to receive the redirect HTTP request from the browser. // 2: Waiting for Final Response. The OAuth2 background thread is waiting for the final access token response. // In that case, cancel the background task started in the call to StartAuth. if (oauth2.AuthFlowState < 3) { oauth2.Cancel(); Debug.WriteLine("No response from the browser!"); return; } // Check the AuthFlowState to see if authorization was granted, denied, or if some error occurred // The possible AuthFlowState values are: // 3: Completed with Success. The OAuth2 flow has completed, the background thread exited, and the successful JSON response is available in AccessTokenResponse property. // 4: Completed with Access Denied. The OAuth2 flow has completed, the background thread exited, and the error JSON is available in AccessTokenResponse property. // 5: Failed Prior to Completion. The OAuth2 flow failed to complete, the background thread exited, and the error information is available in the FailureInfo property. if (oauth2.AuthFlowState == 5) { Debug.WriteLine("OAuth2 failed to complete."); Debug.WriteLine(oauth2.FailureInfo); return; } if (oauth2.AuthFlowState == 4) { Debug.WriteLine("OAuth2 authorization was denied."); Debug.WriteLine(oauth2.AccessTokenResponse); return; } if (oauth2.AuthFlowState != 3) { Debug.WriteLine("Unexpected AuthFlowState:" + Convert.ToString(oauth2.AuthFlowState)); return; } Debug.WriteLine("OAuth2 authorization granted!"); Debug.WriteLine("Access Token = " + oauth2.AccessToken); |
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