API Key Distance Matrxi

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I copied your VBA for the distance matrix and have been using is for a while. It has just stopped working and it appear to now require an API Key. How do I pass this within the VBA? Below is what I have tried. I am only attempting to retrieve a mileage for one address at a time.

‘Calculate Google Maps distance between two addresses
Public Function GetDistance(start As String, dest As String)
Dim firstVal As String, secondVal As String, lastVal As String
firstVal = “https://maps.googleapis.com/maps/api/distancematrix/json?origins=”
secondVal = “&destinations=”
lastVal = “&mode=car&language=pl&sensor=false&Key=place key here”
Set objHTTP = CreateObject(“MSXML2.ServerXMLHTTP”)
Url = firstVal & Replace(start, ” “, “+”) & secondVal & Replace(dest, ” “, “+”) & lastVal
objHTTP.Open “GET”, Url, False
objHTTP.setRequestHeader “User-Agent”, “Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0)”
objHTTP.send (“”)
If InStr(objHTTP.responseText, “””distance”” : {“) = 0 Then GoTo ErrorHandl
Set regex = CreateObject(“VBScript.RegExp”): regex.Pattern = “””value””.*?([0-9]+)”: regex.Global = False
Set matches = regex.Execute(objHTTP.responseText)
tmpVal = Replace(matches(0).SubMatches(0), “.”, Application.International(xlListSeparator))
GetDistance = CDbl(tmpVal)

Exit Function
GetDistance = -1
End Function

Thank you for your help.


I was having the same problem as you and your post actually helped me a bit. Your error I think is just that you have the ‘k’ in key capitalized – use lower case and that worked for me.


Thanks David, Mike & David :). I have updated the example and will need to update the page accordingly.

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