Node.js 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'

Node.js Example

var os = require('os');
if (os.platform() == 'win32') {  
    var chilkat = require('chilkat_node10_win32'); 
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('chilkat_node10_arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('chilkat_node10_linux32');
    } else {
        var chilkat = require('chilkat_node10_linux64');
    }
} else if (os.platform() == 'darwin') {
    var chilkat = require('chilkat_node10_macosx');
}

function chilkatExample() {

    var rest = new chilkat.Rest();
    var success;

    //  URL: https://test-api.service.hmrc.gov.uk/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17
    var bTls = true;
    var port = 443;
    var bAutoReconnect = true;
    success = rest.Connect("test-api.service.hmrc.gov.uk",port,bTls,bAutoReconnect);
    if (success !== true) {
        console.log("ConnectFailReason: " + rest.ConnectFailReason);
        console.log(rest.LastErrorText);
        return;
    }

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

    var sbResponseBody = new chilkat.StringBuilder();
    success = rest.FullRequestNoBodySb("GET","/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17",sbResponseBody);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    var respStatusCode = rest.ResponseStatusCode;
    if (respStatusCode >= 400) {
        console.log("Response Status Code = " + respStatusCode);
        console.log("Response Header:");
        console.log(rest.ResponseHeader);
        console.log("Response Body:");
        console.log(sbResponseBody.GetAsString());
        return;
    }

    var jsonResponse = new chilkat.JsonObject();
    jsonResponse.LoadSb(sbResponseBody);

    //  See the Online Tool for Generating JSON Parse Code
    var i;
    var count_i;
    var taxPeriodFrom;
    var taxPeriodTo;
    var type;
    var originalAmount;
    var outstandingAmount;
    var due;

    i = 0;
    count_i = jsonResponse.SizeOfArray("liabilities");
    while (i < count_i) {
        jsonResponse.I = i;
        taxPeriodFrom = jsonResponse.StringOf("liabilities[i].taxPeriod.from");
        taxPeriodTo = jsonResponse.StringOf("liabilities[i].taxPeriod.to");
        type = jsonResponse.StringOf("liabilities[i].type");
        originalAmount = jsonResponse.StringOf("liabilities[i].originalAmount");
        outstandingAmount = jsonResponse.StringOf("liabilities[i].outstandingAmount");
        due = jsonResponse.StringOf("liabilities[i].due");
        i = i+1;
    }


}

chilkatExample();

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"
    }
  ]
}