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(Unicode C) Check PayPal Access Token ExpirationChecks to see if the PayPal access token expired.
#include <C_CkJsonObjectW.h> #include <C_CkDateTimeW.h> void ChilkatSample(void) { HCkJsonObjectW json; BOOL success; HCkDateTimeW dateTime; BOOL bLocalTime; int dtNow; int dtCreate; int numSeconds; int expires_in; // Note: Requires Chilkat v9.5.0.64 or greater. // This requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // In the example linked here: PayPal OAuth2 Token, // we fetched a PayPal access token and saved it to a JSON file. // We also recorded the current date/time. // Load this JSON file and compare the current date/time with the fetch date/time // and the "expires_in" value to see if the token is expired. json = CkJsonObjectW_Create(); success = CkJsonObjectW_LoadFile(json,L"qa_data/tokens/paypal.json"); if (success != TRUE) { wprintf(L"Failed to load access key json file.\n"); CkJsonObjectW_Dispose(json); return; } // Get the current date/time. dateTime = CkDateTimeW_Create(); bLocalTime = FALSE; dtNow = CkDateTimeW_GetAsUnixTime(dateTime,bLocalTime); // Get the access token create date/time dtCreate = CkJsonObjectW_IntOf(json,L"tokenCreateTimeUtc"); // Find out how many seconds have elapsed. numSeconds = dtNow - dtCreate; // Get the expires_in value from the JSON. expires_in = CkJsonObjectW_IntOf(json,L"expires_in"); wprintf(L"token age (in seconds) = %d\n",numSeconds); wprintf(L"expires_in = %d\n",expires_in); // If the token expired, or if it will expire in 5 minutes or less, // get another token. if (numSeconds < (expires_in - 300)) { wprintf(L"The token is not yet expired. No need to fetch another.\n"); CkJsonObjectW_Dispose(json); CkDateTimeW_Dispose(dateTime); return; } wprintf(L"Time to fetch a new access token...\n"); // Get another token.. // See the example at Get PayPal OAuth2 Token // to get another token.. CkJsonObjectW_Dispose(json); CkDateTimeW_Dispose(dateTime); } |
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