(Classic ASP) Find a Label ID by Name

Lookup the ID of a GMail label by the label name.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

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<%
' 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"

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

url = "https://www.googleapis.com/gmail/v1/users/{$userId}/labels"

' Get the list of GMail labels as JSON.
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.StringBuilder")
set sb = Server.CreateObject("Chilkat.StringBuilder")
success = http.QuickGetSb(url,sb)
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(sb)
json.EmitCompact = 0
Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

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

' The JSON returned looks like this:
' {
'   "labels": [
'     {
'       "id": "Label_5",
'       "name": "QA",
'       "messageListVisibility": "show",
'       "labelListVisibility": "labelShow",
'       "type": "user"
'     },
'     {
'       "id": "Label_21",
'       "name": "[Gmail]/testFolder",
'       "type": "user"
'     },
'     {
'       "id": "CATEGORY_PERSONAL",
'       "name": "CATEGORY_PERSONAL",
'       "type": "system"
'     },
' 	...

' The name of the label is generally known because it's what we visually see.
' The id is what we need to get.  Assuming the name is unique,
' find the JSON record having name=<desired name>
' For example...
' jRecord is a Chilkat.JsonObject
Set jRecord = json.FindRecord("labels","name","QA",0)
If (json.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "The id of QA is: " & jRecord.StringOf("id")) & "</pre>"

End If

' jRecord is a Chilkat.JsonObject
Set jRecord = json.FindRecord("labels","name","[Gmail]/testFolder",0)
If (json.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "The id of [Gmail]/testFolder is: " & jRecord.StringOf("id")) & "</pre>"

End If

' jRecord is a Chilkat.JsonObject
Set jRecord = json.FindRecord("labels","name","questions",0)
If (json.LastMethodSuccess = 1) Then
    Response.Write "<pre>" & Server.HTMLEncode( "The id of questions is: " & jRecord.StringOf("id")) & "</pre>"

End If

' Output:

' The id of QA is: Label_5
' The id of [Gmail]/testFolder is: Label_21
' The id of questions is: Label_43

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