Classic ASP
Microsoft Graph -- List Users

Retrieve a list of Microsoft Graph user objects.
Chilkat Classic ASP Downloads

Classic ASP
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<%
success = 0

' ------------------------------------------------------------------------------------------------------
' See an easier way to do OAuth2 client credentials:
' Example using Automatic OAuth2 Client Credentials
' ------------------------------------------------------------------------------------------------------

' Get an access token with the required scope using client credentials...
' See How to Create Microsoft Graph App (in Azure Portal) for Client Credentials Authentication
set http = Server.CreateObject("Chilkat.Http")
set req = Server.CreateObject("Chilkat.HttpRequest")
req.AddParam "client_secret","CLIENT_SECRET"
req.AddParam "client_id","CLIENT_ID"
req.AddParam "scope","https://graph.microsoft.com/.default"
req.AddParam "grant_type","client_credentials"

' Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
url = "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token"

req.HttpVerb = "POST"
req.ContentType = "application/x-www-form-urlencoded"

set resp = Server.CreateObject("Chilkat.HttpResponse")
success = http.HttpReq(url,req,resp)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

statusCode = resp.StatusCode
Response.Write "<pre>" & Server.HTMLEncode( "Response status code = " & statusCode) & "</pre>"

set json = Server.CreateObject("Chilkat.JsonObject")
success = json.Load(resp.BodyStr)

' -----------------------------------------------------
' Use the access token obtained from above.
' Note: We don't need to re-fetch a new access token every time.  An access token is valid 
' for some amount of time, typically an hour (3600 seconds)

' Use your previously obtained access token here:
http.AuthToken = json.StringOf("access_token")

Response.Write "<pre>" & Server.HTMLEncode( "access token: " & http.AuthToken) & "</pre>"

set sbResponse = Server.CreateObject("Chilkat.StringBuilder")

success = http.QuickGetSb("https://graph.microsoft.com/v1.0/users",sbResponse)
If (success = 0) Then
    Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
    Response.End
End If

success = json.LoadSb(sbResponse)
json.EmitCompact = 0

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

Response.Write "<pre>" & Server.HTMLEncode( json.Emit()) & "</pre>"

' Sample output
' {
'   "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#users",
'   "value": [
'     {
'       "@odata.id": "https://graph.microsoft.com/v2/6d8ddd66-68d1-43b0-af5c-e31b4b7dd5cd/directoryObjects/fca490d8-5918-4201-8079-c5dcbeafcdc9/Microsoft.DirectoryServices.User",
'       "businessPhones": [
'       ],
'       "displayName": "Joe Sample",
'       "givenName": "Joe",
'       "jobTitle": null,
'       "mail": null,
'       "mobilePhone": null,
'       "officeLocation": null,
'       "preferredLanguage": null,
'       "surname": "Sample",
'       "userPrincipalName": "admin_chilkatsoft.com#EXT#@adminchilkatsoft.onmicrosoft.com",
'       "id": "fca490d8-5918-4201-8079-c5dcbeafcdc9"
'     }
'   ]
' }

' Use this online tool to generate parsing code from sample JSON: 
' Generate Parsing Code from JSON

odata_context = json.StringOf("""@odata.context""")
i = 0
count_i = json.SizeOfArray("value")
Do While i < count_i
    json.I = i
    odata_id = json.StringOf("value[i].""@odata.id""")
    displayName = json.StringOf("value[i].displayName")
    givenName = json.StringOf("value[i].givenName")
    jobTitle = json.StringOf("value[i].jobTitle")
    mail = json.StringOf("value[i].mail")
    mobilePhone = json.StringOf("value[i].mobilePhone")
    officeLocation = json.StringOf("value[i].officeLocation")
    preferredLanguage = json.StringOf("value[i].preferredLanguage")
    surname = json.StringOf("value[i].surname")
    userPrincipalName = json.StringOf("value[i].userPrincipalName")
    id = json.StringOf("value[i].id")
    j = 0
    count_j = json.SizeOfArray("value[i].businessPhones")
    Do While j < count_j
        json.J = j
        j = j + 1
    Loop
    i = i + 1
Loop

%>
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