Unicode C

Xero List Attachments for an Item (such as an Invoice)

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Demonstrates how to get information about the attachments for a particular Xero item. Unicode C

#include <C_CkHttpW.h>
#include <C_CkJsonObjectW.h>
#include <C_CkHttpResponseW.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkHttpW http;
    HCkJsonObjectW jsonToken;
    const wchar_t *url;
    HCkHttpResponseW resp;
    HCkJsonObjectW jsonResponse;
    const wchar_t *AttachmentID;
    const wchar_t *FileName;
    const wchar_t *v_Url;
    const wchar_t *MimeType;
    int ContentLength;
    const wchar_t *Id;
    const wchar_t *Status;
    const wchar_t *ProviderName;
    const wchar_t *DateTimeUTC;
    int i;
    int count_i;

    success = FALSE;

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

    http = CkHttpW_Create();

    jsonToken = CkJsonObjectW_Create();
    success = CkJsonObjectW_LoadFile(jsonToken,L"qa_data/tokens/xero-access-token.json");
    if (success == FALSE) {
        wprintf(L"%s\n",CkJsonObjectW_lastErrorText(jsonToken));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        return;
    }

    CkHttpW_putAuthToken(http,CkJsonObjectW_stringOf(jsonToken,L"access_token"));

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

    CkHttpW_putAccept(http,L"application/json");

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

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

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

    resp = CkHttpResponseW_Create();
    success = CkHttpW_HttpNoBody(http,L"GET",url,resp);
    if (success == FALSE) {
        wprintf(L"%s\n",CkHttpW_lastErrorText(http));
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpResponseW_Dispose(resp);
        return;
    }

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

    jsonResponse = CkJsonObjectW_Create();
    CkJsonObjectW_Load(jsonResponse,CkHttpResponseW_bodyStr(resp));
    CkJsonObjectW_putEmitCompact(jsonResponse,FALSE);
    wprintf(L"%s\n",CkJsonObjectW_emit(jsonResponse));

    if (CkHttpResponseW_getStatusCode(resp) != 200) {
        wprintf(L"Failed.\n");
        CkHttpW_Dispose(http);
        CkJsonObjectW_Dispose(jsonToken);
        CkHttpResponseW_Dispose(resp);
        CkJsonObjectW_Dispose(jsonResponse);
        return;
    }

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

    // {
    //   "Id": "24bfbcb9-dec9-4d33-835c-8f165d776766",
    //   "Status": "OK",
    //   "ProviderName": "Chilkat2222",
    //   "DateTimeUTC": "\/Date(1587213296972)\/",
    //   "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
    //     }
    //   ]
    // }

    Id = CkJsonObjectW_stringOf(jsonResponse,L"Id");
    Status = CkJsonObjectW_stringOf(jsonResponse,L"Status");
    ProviderName = CkJsonObjectW_stringOf(jsonResponse,L"ProviderName");
    DateTimeUTC = CkJsonObjectW_stringOf(jsonResponse,L"DateTimeUTC");
    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jsonResponse,L"Attachments");
    while (i < count_i) {
        CkJsonObjectW_putI(jsonResponse,i);
        AttachmentID = CkJsonObjectW_stringOf(jsonResponse,L"Attachments[i].AttachmentID");
        FileName = CkJsonObjectW_stringOf(jsonResponse,L"Attachments[i].FileName");
        v_Url = CkJsonObjectW_stringOf(jsonResponse,L"Attachments[i].Url");
        MimeType = CkJsonObjectW_stringOf(jsonResponse,L"Attachments[i].MimeType");
        ContentLength = CkJsonObjectW_IntOf(jsonResponse,L"Attachments[i].ContentLength");
        i = i + 1;
    }



    CkHttpW_Dispose(http);
    CkJsonObjectW_Dispose(jsonToken);
    CkHttpResponseW_Dispose(resp);
    CkJsonObjectW_Dispose(jsonResponse);

    }