(C++) Xero Get File Content (Files API)

Demonstrates how to download the content of a Xero file.

Note: This example requires Chilkat v9.5.0.64 or greater.

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#include <CkRest.h>
#include <CkStringBuilder.h>
#include <CkBinData.h>

void ChilkatSample(void)
    {
    // 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.

    CkRest rest;
    bool success;

    // Before sending REST API calls, the REST object needs to be
    // initialized for OAuth1.
    // See Xero 2-Legged OAuth1 Setup for sample code.

    // Assuming the REST object's OAuth1 authenticator is setup, and the initial
    // connection was made, we may now send REST HTTP requests..

    // ------------------------------------------------------------------------------
    const char *fileID = "f042e9a3-a31d-4595-b8b3-6030ea6084bb";

    CkStringBuilder sbPath;
    sbPath.Append("/files.xro/1.0/Files/{FileId}/Content");
    int numReplaced = sbPath.Replace("{FileId}",fileID);

    CkBinData jpgData;
    success = rest.FullRequestNoBodyBd("GET",sbPath.getAsString(),jpgData);
    if (success != true) {
        std::cout << rest.lastErrorText() << "\r\n";
        return;
    }

    // A 200 response is expected for actual success.
    // If we don't get a 200 response, then the response body was not actually
    // the file data, but it was text containing error information.
    if (rest.get_ResponseStatusCode() != 200) {
        CkStringBuilder sbErrorText;
        sbErrorText.AppendBd(jpgData,"utf-8",0,0);
        std::cout << sbErrorText.getAsString() << "\r\n";
        std::cout << "-- Failed." << "\r\n";
        return;
    }

    // Save to a local file.
    success = jpgData.WriteFile("qa_output/xero_penguins.jpg");
    if (success != true) {
        std::cout << "Failed to save to local file." << "\r\n";
    }

    std::cout << "Xero Get File was Successful." << "\r\n";
    }