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(Unicode C++) Adobe Sign OAuth2 Access TokenSee more OAuth2 ExamplesDemonstrates how to get an Adobe Sign OAuth2 access token from a desktop application or script.Note: This example requires Chilkat v10.1.2 or greater.
#include <CkOAuth2W.h> #include <CkStringBuilderW.h> void ChilkatSample(void) { // To further clarify, see OAuth 2.0 Authorization Flow CkOAuth2W oauth2; // The Adobe Sign OAuth2 requires an "https" callback URL. This means the "http://localhost:<portNumber>/" is not possible. // For a desktop app, you must provide a script on your web server to redirect to "http://localhost:<portNumber>/" // See Using Your Web Server as an Intermediary for OAuth2 Redirect to localhost oauth2.put_AppCallbackUrl(L"https://yourwebserver.com/OAuth2.php"); oauth2.put_ListenPort(3017); oauth2.put_AuthorizationEndpoint(L"https://secure.na2.echosign.com/public/oauth"); oauth2.put_TokenEndpoint(L"https://api.na2.echosign.com/oauth/token"); // Replace these with actual values. oauth2.put_ClientId(L"MY_CLIENT_ID"); // This is for Require Proof Key for Code Exchange (PKCE) // See OAuth2 PKCE Explained oauth2.put_CodeChallenge(true); oauth2.put_CodeChallengeMethod(L"S256"); // Indicate the desired access by listing scopes. oauth2.put_Scope(L"user_read agreement_read workflow_read"); // Begin the OAuth2 Authorization code flow. This returns a URL that should be loaded in a browser. const wchar_t *url = oauth2.startAuth(); if (oauth2.get_LastMethodSuccess() != true) { wprintf(L"%s\n",oauth2.lastErrorText()); return; } wprintf(L"url = %s\n",url); // Launch the default browser on the system and navigate to the url. // The LaunchBrowser method was added in Chilkat v10.1.2. bool success = oauth2.LaunchBrowser(url); if (success == false) { wprintf(L"%s\n",oauth2.lastErrorText()); return; } // Wait for the user to approve or deny authorization in the browser. int numMsWaited = 0; while ((numMsWaited < 90000) && (oauth2.get_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.get_AuthFlowState() < 3) { oauth2.Cancel(); wprintf(L"No response from the browser!\n"); 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.get_AuthFlowState() == 5) { wprintf(L"OAuth2 failed to complete.\n"); wprintf(L"%s\n",oauth2.failureInfo()); return; } if (oauth2.get_AuthFlowState() == 4) { wprintf(L"OAuth2 authorization was denied.\n"); wprintf(L"%s\n",oauth2.accessTokenResponse()); return; } if (oauth2.get_AuthFlowState() != 3) { wprintf(L"Unexpected AuthFlowState:%d\n",oauth2.get_AuthFlowState()); return; } // Save the full JSON access token response to a file. CkStringBuilderW sbJson; sbJson.Append(oauth2.accessTokenResponse()); sbJson.WriteFile(L"qa_data/tokens/adobe-sign-access-token.json",L"utf-8",false); // The full JSON received looks like this: // { // "access_token": "3AAABL ... YCpUu", // "refresh_token": "3AAABL ... tpDs0*", // "token_type": "Bearer", // "expires_in": 3600 // } wprintf(L"OAuth2 authorization granted!\n"); wprintf(L"Access Token = %s\n",oauth2.accessToken()); } |
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