Classic ASP
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.
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Classic ASP
<html>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<body>
<%
success = 0

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

set http = Server.CreateObject("Chilkat.Http")

' 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"
' }

set json = Server.CreateObject("Chilkat.JsonObject")
success = json.UpdateString("registrationNumber","ABC1234")

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

set resp = Server.CreateObject("Chilkat.HttpResponse")
success = http.HttpJson("POST","https://driver-vehicle-licensing.api.gov.uk/vehicle-enquiry/v1/vehicles",json,"application/json",resp)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

set sbResponseBody = Server.CreateObject("Chilkat.StringBuilder")
success = resp.GetBodySb(sbResponseBody)
set jResp = Server.CreateObject("Chilkat.JsonObject")
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

Response.Write "<pre>" & Server.HTMLEncode( "Response Body:") & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( jResp.Emit()) & "</pre>"

respStatusCode = resp.StatusCode
Response.Write "<pre>" & Server.HTMLEncode( "Response Status Code = " & respStatusCode) & "</pre>"
If (respStatusCode >= 400) Then
    Response.Write "<pre>" & Server.HTMLEncode( "Response Header:") & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( resp.Header) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
End If

' 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")

%>
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</html>