(VBScript) Get Google Account Info from OAuth2 Access Token

See more Google APIs Examples

In the Google OAuth2 authorization flow, an application can know the email address of the Google account used to authorize access by requesting and processing user information from the Google UserInfo endpoint after obtaining an access token.

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

' Implements the following CURL command:

' curl -H "Authorization: Bearer YOUR_ACCESS_TOKEN" https://www.googleapis.com/oauth2/v3/userinfo

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

' Adds the "Authorization: Bearer YOUR_ACCESS_TOKEN" header.
http.AuthToken = "YOUR_ACCESS_TOKEN"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbResponseBody = CreateObject("Chilkat.StringBuilder")
success = http.QuickGetSb("https://www.googleapis.com/oauth2/v3/userinfo",sbResponseBody)
If (success = 0) Then
    outFile.WriteLine(http.LastErrorText)
    WScript.Quit
End If

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set jResp = CreateObject("Chilkat.JsonObject")
success = jResp.LoadSb(sbResponseBody)
jResp.EmitCompact = 0

outFile.WriteLine("Response Body:")
outFile.WriteLine(jResp.Emit())

respStatusCode = http.LastStatus
outFile.WriteLine("Response Status Code = " & respStatusCode)
If (respStatusCode >= 400) Then
    outFile.WriteLine("Response Header:")
    outFile.WriteLine(http.LastHeader)
    outFile.WriteLine("Failed.")
    WScript.Quit
End If

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

' {
'   "sub": "112233445678901234567",
'   "name": "John Doe",
'   "given_name": "John",
'   "family_name": "Doe",
'   "profile": "https://plus.google.com/112233445678901234567",
'   "picture": "https://lh3.googleusercontent.com/a-/AOh14GiU-EXAMPLE",
'   "email": "johndoe@example.com",
'   "email_verified": true,
'   "locale": "en"
' }

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

v_sub = jResp.StringOf("sub")
name = jResp.StringOf("name")
given_name = jResp.StringOf("given_name")
family_name = jResp.StringOf("family_name")
profile = jResp.StringOf("profile")
picture = jResp.StringOf("picture")
email = jResp.StringOf("email")
email_verified = jResp.BoolOf("email_verified")
locale = jResp.StringOf("locale")

outFile.Close