Unicode C HMRC VAT MTD: Retrieve VAT Liabilities

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Retrieve VAT liabilities

Documentation: https://developer.service.hmrc.gov.uk/api-documentation/docs/api/service/vat-api/1.0#_retrieve-vat-liabilities_get_accordion

CURL Command

curl -X GET  https://test-api.service.hmrc.gov.uk/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17 \
-H 'Authorization: Bearer HMRC_ACCESS_TOKEN' \
-H 'Accept: application/vnd.hmrc.1.0+json'

Unicode C Example

#include <C_CkRestW.h>
#include <C_CkStringBuilderW.h>
#include <C_CkJsonObjectW.h>

void ChilkatSample(void)
    {
    HCkRestW rest;
    BOOL success;
    BOOL bTls;
    int port;
    BOOL bAutoReconnect;
    HCkStringBuilderW sbResponseBody;
    int respStatusCode;
    HCkJsonObjectW jsonResponse;
    int i;
    int count_i;
    const wchar_t *taxPeriodFrom;
    const wchar_t *taxPeriodTo;
    const wchar_t *type;
    const wchar_t *originalAmount;
    const wchar_t *outstandingAmount;
    const wchar_t *due;

    rest = CkRestW_Create();

    //  URL: https://test-api.service.hmrc.gov.uk/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17
    bTls = TRUE;
    port = 443;
    bAutoReconnect = TRUE;
    success = CkRestW_Connect(rest,L"test-api.service.hmrc.gov.uk",port,bTls,bAutoReconnect);
    if (success != TRUE) {
        wprintf(L"ConnectFailReason: %d\n",CkRestW_getConnectFailReason(rest));
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        return;
    }

    CkRestW_AddHeader(rest,L"Authorization",L"Bearer HMRC_ACCESS_TOKEN");
    CkRestW_AddHeader(rest,L"Accept",L"application/vnd.hmrc.1.0+json");

    sbResponseBody = CkStringBuilderW_Create();
    success = CkRestW_FullRequestNoBodySb(rest,L"GET",L"/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17",sbResponseBody);
    if (success != TRUE) {
        wprintf(L"%s\n",CkRestW_lastErrorText(rest));
        CkRestW_Dispose(rest);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    respStatusCode = CkRestW_getResponseStatusCode(rest);
    if (respStatusCode >= 400) {
        wprintf(L"Response Status Code = %d\n",respStatusCode);
        wprintf(L"Response Header:\n");
        wprintf(L"%s\n",CkRestW_responseHeader(rest));
        wprintf(L"Response Body:\n");
        wprintf(L"%s\n",CkStringBuilderW_getAsString(sbResponseBody));
        CkRestW_Dispose(rest);
        CkStringBuilderW_Dispose(sbResponseBody);
        return;
    }

    jsonResponse = CkJsonObjectW_Create();
    CkJsonObjectW_LoadSb(jsonResponse,sbResponseBody);

    //  See the Online Tool for Generating JSON Parse Code

    i = 0;
    count_i = CkJsonObjectW_SizeOfArray(jsonResponse,L"liabilities");
    while (i < count_i) {
        CkJsonObjectW_putI(jsonResponse,i);
        taxPeriodFrom = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].taxPeriod.from");
        taxPeriodTo = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].taxPeriod.to");
        type = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].type");
        originalAmount = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].originalAmount");
        outstandingAmount = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].outstandingAmount");
        due = CkJsonObjectW_stringOf(jsonResponse,L"liabilities[i].due");
        i = i + 1;
    }



    CkRestW_Dispose(rest);
    CkStringBuilderW_Dispose(sbResponseBody);
    CkJsonObjectW_Dispose(jsonResponse);

    }

Sample JSON Response Body

{
  "liabilities": [
    {
      "taxPeriod": {
        "from": "2018-04-06",
        "to": "2018-07-06"
      },
      "type": "VAT ...",
      "originalAmount": 6000.3,
      "outstandingAmount": 100.51,
      "due": "2018-07-06"
    }
  ]
}