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(Unicode C) Salesforce OAuth2 Access TokenDemonstrates how to get a Salesforce OAuth2 access token from a desktop application or script.
#include <C_CkOAuth2W.h> void ChilkatSample(void) { HCkOAuth2W oauth2; BOOL success; const wchar_t *url; int numMsWaited; // It requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. oauth2 = CkOAuth2W_Create(); // This should be the port in the localhost callback URL for your connected app. // The callback URL would look like "http://localhost:3017/" if the port number is 3017. CkOAuth2W_putListenPort(oauth2,3017); CkOAuth2W_putAuthorizationEndpoint(oauth2,L"https://login.salesforce.com/services/oauth2/authorize"); CkOAuth2W_putTokenEndpoint(oauth2,L"https://login.salesforce.com/services/oauth2/token"); // Replace these with actual values. CkOAuth2W_putClientId(oauth2,L"SALESFORCE-CLIENT-ID"); CkOAuth2W_putClientSecret(oauth2,L"SALESFORCE-CLIENT-SECRET"); CkOAuth2W_putCodeChallenge(oauth2,TRUE); CkOAuth2W_putCodeChallengeMethod(oauth2,L"S256"); // Begin the OAuth2 three-legged flow. This returns a URL that should be loaded in a browser. url = CkOAuth2W_startAuth(oauth2); if (CkOAuth2W_getLastMethodSuccess(oauth2) != TRUE) { wprintf(L"%s\n",CkOAuth2W_lastErrorText(oauth2)); CkOAuth2W_Dispose(oauth2); 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 Salesforce 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. numMsWaited = 0; while ((numMsWaited < 30000) && (CkOAuth2W_getAuthFlowState(oauth2) < 3)) { CkOAuth2W_SleepMs(oauth2,100); 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 (CkOAuth2W_getAuthFlowState(oauth2) < 3) { CkOAuth2W_Cancel(oauth2); wprintf(L"No response from the browser!\n"); CkOAuth2W_Dispose(oauth2); 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 (CkOAuth2W_getAuthFlowState(oauth2) == 5) { wprintf(L"OAuth2 failed to complete.\n"); wprintf(L"%s\n",CkOAuth2W_failureInfo(oauth2)); CkOAuth2W_Dispose(oauth2); return; } if (CkOAuth2W_getAuthFlowState(oauth2) == 4) { wprintf(L"OAuth2 authorization was denied.\n"); wprintf(L"%s\n",CkOAuth2W_accessTokenResponse(oauth2)); CkOAuth2W_Dispose(oauth2); return; } if (CkOAuth2W_getAuthFlowState(oauth2) != 3) { wprintf(L"Unexpected AuthFlowState:%d\n",CkOAuth2W_getAuthFlowState(oauth2)); CkOAuth2W_Dispose(oauth2); return; } wprintf(L"OAuth2 authorization granted!\n"); wprintf(L"Access Token = %s\n",CkOAuth2W_accessToken(oauth2)); CkOAuth2W_Dispose(oauth2); } |
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