(VBScript) Google Maps Geolocation Request

Demonstrates how make a Google Maps Geolocation REST API request.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' This example duplicates the following CURL request:
' curl -d @your_filename.json -H "Content-Type: application/json" -i "https://www.googleapis.com/geolocation/v1/geolocate?key=YOUR_API_KEY"

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

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Rest")
set rest = CreateObject("Chilkat.Rest")

' Connect to the Google API REST server.
bTls = 1
port = 443
bAutoReconnect = 1
success = rest.Connect("www.googleapis.com",port,bTls,bAutoReconnect)

' Add the Content-Type request header.
success = rest.AddHeader("Content-Type","application/json")

' Add your API key as a query parameter
success = rest.AddQueryParam("key","YOUR_API_KEY")

' The JSON query is contained in the body of the HTTP POST.
' This is a sample query (which we'll dynamically build in this example)
' { 
'  "homeMobileCountryCode": 310,
'  "homeMobileNetworkCode": 260,
'  "radioType": "gsm",
'  "carrier": "T-Mobile",
'  "cellTowers": [
'   {
'    "cellId": 39627456,
'    "locationAreaCode": 40495,
'    "mobileCountryCode": 310,
'    "mobileNetworkCode": 260,
'    "age": 0,
'    "signalStrength": -95
'   }
'  ],
'  "wifiAccessPoints": [
'   { 
'    "macAddress": "01:23:45:67:89:AB",
'    "signalStrength": 8,
'    "age": 0,
'    "signalToNoiseRatio": -65,
'    "channel": 8
'   },
'   { 
'    "macAddress": "01:23:45:67:89:AC",
'    "signalStrength": 4,
'    "age": 0
'   }
'  ]
' }

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set json = CreateObject("Chilkat.JsonObject")
success = json.AppendInt("homeMobileCountryCode",310)
success = json.AppendInt("homeMobileNetworkCode",260)
success = json.AppendString("radioType","gsm")
success = json.AppendString("carrier","T-Mobile")
' aCellTowers is a Chilkat.JsonArray
Set aCellTowers = json.AppendArray("cellTowers")
success = aCellTowers.AddObjectAt(0)
' oCellTower is a Chilkat.JsonObject
Set oCellTower = aCellTowers.ObjectAt(0)
success = oCellTower.AppendInt("cellId",39627456)
success = oCellTower.AppendInt("locationAreaCode",40495)
success = oCellTower.AppendInt("mobileCountryCode",310)
success = oCellTower.AppendInt("mobileNetworkCode",260)
success = oCellTower.AppendInt("age",0)
success = oCellTower.AppendInt("signalStrength",-95)

' aWifi is a Chilkat.JsonArray
Set aWifi = json.AppendArray("wifiAccessPoints")
success = aWifi.AddObjectAt(0)
' oPoint is a Chilkat.JsonObject
Set oPoint = aWifi.ObjectAt(0)
success = oPoint.AppendString("macAddress","01:23:45:67:89:AB")
success = oPoint.AppendInt("signalStrength",8)
success = oPoint.AppendInt("age",0)
success = oPoint.AppendInt("signalToNoiseRatio",-65)
success = oPoint.AppendInt("channel",8)

success = aWifi.AddObjectAt(1)
' oPoint is a Chilkat.JsonObject
Set oPoint = aWifi.ObjectAt(1)
success = oPoint.AppendString("macAddress","01:23:45:67:89:AC")
success = oPoint.AppendInt("signalStrength",4)
success = oPoint.AppendInt("age",0)

responseJson = rest.FullRequestString("POST","/geolocation/v1/geolocate",json.Emit())
If (rest.LastMethodSuccess <> 1) Then
    outFile.WriteLine(rest.LastErrorText)
    WScript.Quit
End If

' When successful, the response code is 200.
If (rest.ResponseStatusCode <> 200) Then
    ' Examine the request/response to see what happened.
    outFile.WriteLine("response status code = " & rest.ResponseStatusCode)
    outFile.WriteLine("response status text = " & rest.ResponseStatusText)
    outFile.WriteLine("response header: " & rest.ResponseHeader)
    outFile.WriteLine("response JSON: " & responseJson)
    outFile.WriteLine("---")
    outFile.WriteLine("LastRequestStartLine: " & rest.LastRequestStartLine)
    outFile.WriteLine("LastRequestHeader: " & rest.LastRequestHeader)
    WScript.Quit
End If

json.EmitCompact = 0
outFile.WriteLine("JSON request body: " & json.Emit())

' The JSON response should look like this:
' { 
'  "location": {
'   "lat": 37.4248297,
'   "lng": -122.07346549999998
'  },
'  "accuracy": 1145.0
' }

outFile.WriteLine("JSON response: " & responseJson)

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set jsonResp = CreateObject("Chilkat.JsonObject")
success = jsonResp.Load(responseJson)

' jsonLoc is a Chilkat.JsonObject
Set jsonLoc = jsonResp.ObjectOf("location")
' Any JSON value can be obtained as a string..
latitude = jsonLoc.StringOf("lat")
outFile.WriteLine("latitude = " & latitude)
longitude = jsonLoc.StringOf("lng")
outFile.WriteLine("longitude = " & longitude)

accuracy = jsonResp.StringOf("accuracy")
outFile.WriteLine("accuracy = " & accuracy)

outFile.Close