Unicode C++

Check PayPal Access Token Expiration

See more PayPal Examples

Checks to see if the PayPal access token expired. Unicode C++

#include <CkJsonObjectW.h>
#include <CkDateTimeW.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  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.

    CkJsonObjectW json;
    success = json.LoadFile(L"qa_data/tokens/paypal.json");
    if (success != true) {
        wprintf(L"Failed to load access key json file.\n");
        return;
    }

    //  Get the current date/time.
    CkDateTimeW dateTime;
    bool bLocalTime = false;
    int dtNow = dateTime.GetAsUnixTime(bLocalTime);

    //  Get the access token create date/time
    int dtCreate = json.IntOf(L"tokenCreateTimeUtc");

    //  Find out how many seconds have elapsed.
    int numSeconds = dtNow - dtCreate;

    //  Get the expires_in value from the JSON.
    int expires_in = json.IntOf(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");
        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..
    }