(Go) DVLA Vehicle Enquiry Service

Demonstrates how to make a call to the DVLA Vehicle Enquiry API to get vehicle details of a specified vehicle. It uses the vehicle registration number as input to search and provide details of the vehicle.

For more information, see https://developer-portal.driver-vehicle-licensing.api.gov.uk/apis/vehicle-enquiry-service/vehicle-enquiry-service-description.html

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

    http := chilkat.NewHttp()
    var success bool

    // Implements the following CURL command:

    // curl -X POST https://driver-vehicle-licensing.api.gov.uk/vehicle-enquiry/v1/vehicles \
    //   -H "x-api-key: supplied API key" \
    //   -H "Accept: application/json" \
    //   -d '{"registrationNumber": "ABC1234"}'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

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

    // The following JSON is sent in the request body.

    // {
    //   "registrationNumber": "ABC1234"
    // }

    json := chilkat.NewJsonObject()
    json.UpdateString("registrationNumber","ABC1234")

    http.SetRequestHeader("Accept","application/json")
    http.SetRequestHeader("x-api-key","supplied API key")

    resp := http.PostJson3("https://driver-vehicle-licensing.api.gov.uk/vehicle-enquiry/v1/vehicles","application/json",json)
    if http.LastMethodSuccess() == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        return
    }

    sbResponseBody := chilkat.NewStringBuilder()
    resp.GetBodySb(sbResponseBody)
    jResp := chilkat.NewJsonObject()
    jResp.LoadSb(sbResponseBody)
    jResp.SetEmitCompact(false)

    fmt.Println("Response Body:")
    fmt.Println(*jResp.Emit())

    respStatusCode := resp.StatusCode()
    fmt.Println("Response Status Code = ", respStatusCode)
    if respStatusCode >= 400 {
        fmt.Println("Response Header:")
        fmt.Println(resp.Header())
        fmt.Println("Failed.")
        resp.DisposeHttpResponse()
        http.DisposeHttp()
        json.DisposeJsonObject()
        sbResponseBody.DisposeStringBuilder()
        jResp.DisposeJsonObject()
        return
    }

    resp.DisposeHttpResponse()

    // Sample JSON response:
    // (Sample code for parsing the JSON response is shown below)

    // {
    //   "artEndDate": "2025-02-28",
    //   "co2Emissions": 135,
    //   "colour": "BLUE",
    //   "engineCapacity": 2494,
    //   "fuelType": "PETROL",
    //   "make": "ROVER",
    //   "markedForExport": false,
    //   "monthOfFirstRegistration": "2004-12",
    //   "motStatus": "No details held by DVLA",
    //   "registrationNumber": "ABC1234",
    //   "revenueWeight": 1640,
    //   "taxDueDate": "2007-01-01",
    //   "taxStatus": "Untaxed",
    //   "typeApproval": "N1",
    //   "wheelplan": "NON STANDARD",
    //   "yearOfManufacture": 2004,
    //   "euroStatus": "EURO 6 AD",
    //   "realDrivingEmissions": "1",
    //   "dateOfLastV5CIssued": "2016-12-25"
    // }

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

    artEndDate := jResp.StringOf("artEndDate")
    co2Emissions := jResp.IntOf("co2Emissions")
    colour := jResp.StringOf("colour")
    engineCapacity := jResp.IntOf("engineCapacity")
    fuelType := jResp.StringOf("fuelType")
    make := jResp.StringOf("make")
    markedForExport := jResp.BoolOf("markedForExport")
    monthOfFirstRegistration := jResp.StringOf("monthOfFirstRegistration")
    motStatus := jResp.StringOf("motStatus")
    registrationNumber := jResp.StringOf("registrationNumber")
    revenueWeight := jResp.IntOf("revenueWeight")
    taxDueDate := jResp.StringOf("taxDueDate")
    taxStatus := jResp.StringOf("taxStatus")
    typeApproval := jResp.StringOf("typeApproval")
    wheelplan := jResp.StringOf("wheelplan")
    yearOfManufacture := jResp.IntOf("yearOfManufacture")
    euroStatus := jResp.StringOf("euroStatus")
    realDrivingEmissions := jResp.StringOf("realDrivingEmissions")
    dateOfLastV5CIssued := jResp.StringOf("dateOfLastV5CIssued")

    http.DisposeHttp()
    json.DisposeJsonObject()
    sbResponseBody.DisposeStringBuilder()
    jResp.DisposeJsonObject()