(Classic ASP) Download a Specific GMail Message into a Chilkat Email Object

Demonstrates how to download a GMail message into a Chilkat Email object.

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 = "GMAIL-ACCESS-TOKEN"

' The id of the GMail message to download.
id = "166e50fed0b9b0cb"
userId = "me"

success = http.SetUrlVar("userId","me")
success = http.SetUrlVar("id",id)

' Fetch the email.
url = "https://www.googleapis.com/gmail/v1/users/{$userId}/messages/{$id}?format=raw"
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbJson = Server.CreateObject("Chilkat.StringBuilder")
success = http.DownloadSb(url,"utf-8",sbJson)
If (success <> 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

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

If (http.LastStatus <> 200) Then
    Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"
    Response.Write "<pre>" & Server.HTMLEncode( "Failed.") & "</pre>"
    Response.End
End If

' The returned JSON contains something like this:

' {
'   "id": "166e50fed0b9b0cb",
'   "threadId": "166e50fed0b9b0cb",
'   "labelIds": [
'     "CATEGORY_SOCIAL",
'     "INBOX"
'   ],
'   "snippet": "...",
'   "historyId": "582477",
'   "internalDate": "1541441317000",
'   "sizeEstimate": 28603,
'   "raw": "BASE64URL_CONTENT"
' }

' The RFC822 MIME of the email is contained in the "raw" as a base64URL encoded string.
' Let's decode and load into a Chilkat email object..
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sbRaw = Server.CreateObject("Chilkat.StringBuilder")
success = json.StringOfSb("raw",sbRaw)
success = sbRaw.Decode("base64url","utf-8")

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Email")
set email = Server.CreateObject("Chilkat.Email")
success = email.SetFromMimeSb(sbRaw)

' Now we can use the email API to do whatever we desire..
Response.Write "<pre>" & Server.HTMLEncode( "From: " & email.FromAddress) & "</pre>"
Response.Write "<pre>" & Server.HTMLEncode( "Subject: " & email.Subject) & "</pre>"
' ...

%>
</body>
</html>