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(Unicode C) MercadoLibre Refresh OAuth2 Access TokenDemonstrates how to refresh a MercadoLibre OAuth2 access token. The refresh does not require user interaction via a web browser. If an access token expires (typically with a 401 response code), a new access token can be automatically obtained by using the code in this example. For more information, see https://developers.mercadolibre.com.ar/es_ar/autenticacion-y-autorizacion#Refresh-token
#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 MercadoLibre OAuth2 Access Token jsonToken = CkJsonObjectW_Create(); success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/mercadolibre.json"); if (success != TRUE) { wprintf(L"Failed to load mercadolibre.json\n"); CkJsonObjectW_Dispose(jsonToken); return; } // The access token JSON looks like this: // { // "access_token": "APP_USR-8133606632685744-060115-93e1fd8b5e767c51c238df347bd0b288-577628017", // "token_type": "bearer", // "expires_in": 21600, // "scope": "offline_access read write", // "user_id": 577625107, // "refresh_token": "TG-5ad522a286f1200006ac4ed1-577625007" // } oauth2 = CkOAuth2W_Create(); CkOAuth2W_putTokenEndpoint(oauth2,L"https://api.mercadolibre.com/oauth/token"); // Replace these with actual values. CkOAuth2W_putClientId(oauth2,L"MY_MERCADOLIBRE_APP_ID"); CkOAuth2W_putClientSecret(oauth2,L"MY_MERCADOLIBRE_APP_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; } wprintf(L"New access token: %s\n",CkOAuth2W_accessToken(oauth2)); wprintf(L"New refresh token: %s\n",CkOAuth2W_refreshToken(oauth2)); // Update the JSON with the new tokens. CkJsonObjectW_UpdateString(jsonToken,L"access_token",CkOAuth2W_accessToken(oauth2)); CkJsonObjectW_UpdateString(jsonToken,L"refresh_token",CkOAuth2W_refreshToken(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/mercadolibre.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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