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(Unicode C) Google Translate API Refresh Access TokenSee more Google Translate ExamplesDemonstrates how to refresh a Google Access Token for the Google Translate API.
#include <C_CkJsonObjectW.h> #include <C_CkOAuth2W.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { HCkJsonObjectW jsonToken; BOOL success; HCkOAuth2W oauth2; HCkStringBuilderW sbJson; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // It is assumed we previously obtained an OAuth2 access token. // This example loads the JSON access token file // saved by this example: Get Google Translate API OAuth2 Access Token jsonToken = CkJsonObjectW_Create(); success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/_googleTranslate.json"); if (success != TRUE) { wprintf(L"Failed to load _googleTranslate.json\n"); CkJsonObjectW_Dispose(jsonToken); return; } // The access token JSON looks like this: // { // "access_token": "ya29.a0AfH6S ... LAZYFUkf0", // "expires_in": 3599, // "refresh_token": "1//0fL_Ov ... ee0", // "scope": "https://www.googleapis.com/auth/cloud-translation", // "token_type": "Bearer" // } oauth2 = CkOAuth2W_Create(); CkOAuth2W_putTokenEndpoint(oauth2,L"https://www.googleapis.com/oauth2/v4/token"); // Replace these with actual values. CkOAuth2W_putClientId(oauth2,L"GOOGLE-CLIENT-ID"); CkOAuth2W_putClientSecret(oauth2,L"GOOGLE-CLIENT-SECRET"); // Get the "refresh_token" CkOAuth2W_putRefreshToken(oauth2,CkJsonObjectW_stringOf(jsonToken,L"refresh_token")); // Send the HTTP POST to refresh the access token.. success = CkOAuth2W_RefreshAccessToken(oauth2); if (success != TRUE) { wprintf(L"%s\n",CkOAuth2W_lastErrorText(oauth2)); CkJsonObjectW_Dispose(jsonToken); CkOAuth2W_Dispose(oauth2); return; } // The response contains a new access token, but we must keep // our existing refresh token for when we need to refresh again in the future. CkJsonObjectW_UpdateString(jsonToken,L"access_token",CkOAuth2W_accessToken(oauth2)); // Save the new JSON access token response to a file. sbJson = CkStringBuilderW_Create(); CkJsonObjectW_putEmitCompact(jsonToken,FALSE); CkJsonObjectW_EmitSb(jsonToken,sbJson); CkStringBuilderW_WriteFile(sbJson,L"qa_data/tokens/_googleTranslate.json",L"utf-8",FALSE); wprintf(L"OAuth2 authorization granted!\n"); wprintf(L"New Access Token = %s\n",CkOAuth2W_accessToken(oauth2)); CkJsonObjectW_Dispose(jsonToken); CkOAuth2W_Dispose(oauth2); CkStringBuilderW_Dispose(sbJson); } |
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