Java 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'

Java Example

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    CkRest rest = new CkRest();
    boolean success;

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

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

    CkStringBuilder sbResponseBody = new CkStringBuilder();
    success = rest.FullRequestNoBodySb("GET","/organisations/vat/MY_HMRC_VRN/liabilities?from=2018-06-25&to=2019-02-17",sbResponseBody);
    if (success != true) {
        System.out.println(rest.lastErrorText());
        return;
        }

    int respStatusCode = rest.get_ResponseStatusCode();
    if (respStatusCode >= 400) {
        System.out.println("Response Status Code = " + respStatusCode);
        System.out.println("Response Header:");
        System.out.println(rest.responseHeader());
        System.out.println("Response Body:");
        System.out.println(sbResponseBody.getAsString());
        return;
        }

    CkJsonObject jsonResponse = new CkJsonObject();
    jsonResponse.LoadSb(sbResponseBody);

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

    i = 0;
    count_i = jsonResponse.SizeOfArray("liabilities");
    while (i < count_i) {
        jsonResponse.put_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;
        }
  }
}

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"
    }
  ]
}