Xojo Plugin

Azure REST API Access Token

See more Azure OAuth2 Examples

Demonstrates how to request an Azure REST API OAUTH2 access token.

Note: In order to access resources a Service Principal needs to be created in your Tenant. It is really convenient to do it via AZ CLI:

az ad sp create-for-rbac --name [APP_NAME] --password [CLIENT_SECRET]

Xojo Plugin

Dim success As Boolean
success = False

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

Dim rest As New Chilkat.Rest

// URL: https://login.microsoftonline.com/TENANT_ID/oauth2/token
Dim bTls As Boolean
bTls = True
Dim port As Int32
port = 443
Dim bAutoReconnect As Boolean
bAutoReconnect = True
success = rest.Connect("login.microsoftonline.com",port,bTls,bAutoReconnect)
If (success <> True) Then
    System.DebugLog("ConnectFailReason: " + Str(rest.ConnectFailReason))
    System.DebugLog(rest.LastErrorText)
    Return
End If

// Add query params to the request.
success = rest.AddQueryParam("grant_type","client_credentials")
success = rest.AddQueryParam("client_id","APP_ID")
success = rest.AddQueryParam("client_secret","CLIENT_SECRET")
// Note: The resource must match the API for which you're using the access token..
success = rest.AddQueryParam("resource","https://management.azure.com/")

Dim strResponseBody As String
strResponseBody = rest.FullRequestFormUrlEncoded("POST","/TENANT_ID/oauth2/token")
If (rest.LastMethodSuccess <> True) Then
    System.DebugLog(rest.LastErrorText)
    Return
End If

Dim respStatusCode As Int32
respStatusCode = rest.ResponseStatusCode
If (respStatusCode >= 400) Then
    System.DebugLog("Response Status Code = " + Str(respStatusCode))
    System.DebugLog("Response Header:")
    System.DebugLog(rest.ResponseHeader)
    System.DebugLog("Response Body:")
    System.DebugLog(strResponseBody)
    Return
End If

Dim json As New Chilkat.JsonObject
success = json.Load(strResponseBody)
json.EmitCompact = False
System.DebugLog(json.Emit())

// The result is an access token such as the following:

// {
//   "token_type": "Bearer",
//   "expires_in": "3600",
//   "ext_expires_in": "3600",
//   "expires_on": "1557864616",
//   "not_before": "1557860716",
//   "resource": "https://management.azure.com/",
//   "access_token": "eyJ0eXAiOiJKV1QiL ... 20UFDDOHEyUg"
// }

// We'll save this JSON to a file for other examples to use..
success = json.WriteFile("qa_data/tokens/azureToken.json")