(Unicode C++) Xero Upload Attachment

Demonstrates how to upload an attachment to Xero.

For more information, see https://developer.xero.com/documentation/api/attachments#POST

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <CkHttpW.h>
#include <CkJsonObjectW.h>
#include <CkBinDataW.h>
#include <CkHttpResponseW.h>

void ChilkatSample(void)
    {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkHttpW http;

    // Important: Make sure your OAuth2 access token was obtained with the scope "accounting.attachments"
    // included in the list of scopes.

    CkJsonObjectW jsonToken;
    bool success = jsonToken.LoadFile(L"qa_data/tokens/xero-access-token.json");
    if (success == false) {
        wprintf(L"%s\n",jsonToken.lastErrorText());
        return;
    }

    http.put_AuthToken(jsonToken.stringOf(L"access_token"));

    // Replace the value here with an actual tenant ID obtained from this example:
    // Get Xero Tenant IDs
    http.SetRequestHeader(L"Xero-tenant-id",L"83299b9e-5747-4a14-a18a-a6c94f824eb7");

    http.put_Accept(L"application/json");

    const wchar_t *url = L"https://api.xero.com/api.xro/2.0/{$Endpoint}/{$Guid}/Attachments/{$Filename}";

    // Endpoint can be Invoices, Receipts, CreditNotes, PurchaseOrders, etc.
    http.SetUrlVar(L"Endpoint",L"Invoices");

    // Guid is the ID of the item, such as the InvoiceID.
    http.SetUrlVar(L"Guid",L"0032f627-3156-4d30-9b1c-4d3b994dc921");

    // Filename is the filename of the attachment you are uploading.
    http.SetUrlVar(L"Filename",L"penguins.jpg");

    // Load the file to be uploaded (from the local filesystem).
    CkBinDataW bd;
    success = bd.LoadFile(L"qa_data/jpg/penguins.jpg");
    if (success == false) {
        wprintf(L"Failed to load attachment file.\n");
        return;
    }

    // Indicate the content-type according to the file content type.
    // Common content-types are:   image/jpg, image/png, application/pdf, application/zip, application/msword
    // If you don't know, use application/octet-stream
    CkHttpResponseW *resp = http.PBinaryBd(L"POST",url,bd,L"image/jpg",false,false);
    if (http.get_LastMethodSuccess() != true) {
        wprintf(L"%s\n",http.lastErrorText());
        return;
    }

    wprintf(L"Response Status Code: %d\n",resp->get_StatusCode());

    CkJsonObjectW jsonResponse;
    jsonResponse.Load(resp->bodyStr());
    jsonResponse.put_EmitCompact(false);
    wprintf(L"%s\n",jsonResponse.emit());

    if (resp->get_StatusCode() != 200) {
        wprintf(L"Failed.\n");
        delete resp;
        return;
    }

    delete resp;

    // A sample response:

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // {
    //   "Id": "35333c64-4449-457b-bf6a-1b64d538e3c7",
    //   "Status": "OK",
    //   "ProviderName": "Chilkat2222",
    //   "DateTimeUTC": "\/Date(1587212597758)\/",
    //   "Attachments": [
    //     {
    //       "AttachmentID": "daf106e2-8634-4349-bfcc-86c1df0793b2",
    //       "FileName": "penguins.jpg",
    //       "Url": "https://api.xero.com/api.xro/2.0/Invoices/0032f627-3156-4d30-9b1c-4d3b994dc921/Attachments/penguins.jpg",
    //       "MimeType": "image/jpg",
    //       "ContentLength": 777835
    //     }
    //   ]
    // }
    }