(Classic ASP) Get a List of Message IDs in GMail User's Mailbox

Demonstrates how to get a list of message IDs in a GMail mailbox. The "userId" can be either the user's email address or the special value "me" to indicate the authenticated user.

For more information, see https://developers.google.com/gmail/api/v1/reference/users/messages/list

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<%
' 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.Http")
set http = Server.CreateObject("Chilkat.Http")

http.AuthToken = "ACCESS_TOKEN"

http.Accept = "application/json"

' resp is a Chilkat.HttpResponse
Set resp = http.QuickRequest("GET","https://www.googleapis.com/gmail/v1/users/userId/messages")
If (http.LastMethodSuccess <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

Response.Write "<pre>" & Server.HTMLEncode( "Response Status Code: " & resp.StatusCode) & "</pre>"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.JsonObject")
set jsonResponse = Server.CreateObject("Chilkat.JsonObject")
success = jsonResponse.Load(resp.BodyStr)
jsonResponse.EmitCompact = 0
Response.Write "<pre>" & Server.HTMLEncode( jsonResponse.Emit()) & "</pre>"

If (resp.StatusCode <> 200) Then
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"

    Response.End
End If

' {
'   "messages": [
'     users.messages Resource
'   ],
'   "nextPageToken": string,
'   "resultSizeEstimate": unsigned integer
' }

resultSizeEstimate = jsonResponse.IntOf("resultSizeEstimate")
i = 0
count_i = jsonResponse.SizeOfArray("messages")
Do While i < count_i
    jsonResponse.I = i
    id = jsonResponse.StringOf("messages[i].id")
    threadId = jsonResponse.StringOf("messages[i].threadId")
    i = i + 1
Loop

%>
</body>
</html>