(Xojo Plugin) Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Note: Your Azure app must be registered as a single-tenant app to use client credentials.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://docs.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow

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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 http As New Chilkat.Http

Dim req As New Chilkat.HttpRequest
req.AddParam "client_secret","CLIENT_SECRET"
req.AddParam "client_id","CLIENT_ID"

// See Understanding Scopes in Azure OAuth2 Client Credentials Flow
req.AddParam "scope","https://graph.microsoft.com/.default"

req.AddParam "grant_type","client_credentials"

// Note: Your Azure app must be registered as a single-tenant app to use client credentials.
// Use your own tenant ID, for example 4d8fdd66-66d1-43b0-ae5c-e31b4b7de5cd
Dim url As String
url = "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token"

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

Dim resp As New Chilkat.HttpResponse
success = http.HttpReq(url,req,resp)
If (success = False) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim statusCode As Int32
statusCode = resp.StatusCode
System.DebugLog("Response status code = " + Str(statusCode))

Dim json As New Chilkat.JsonObject
success = json.Load(resp.BodyStr)

json.EmitCompact = False
System.DebugLog(json.Emit())

// Sample successful output:

// {
//   "token_type": "Bearer",
//   "expires_in": 3599,
//   "ext_expires_in": 3599,
//   "access_token": "eyJ0eX...K0jOERg"
// }

If (statusCode = 200) Then
    success = json.WriteFile("qa_data/tokens/azureClientCredentialsToken.json")
    System.DebugLog("Success.")
Else
    System.DebugLog("Failed.")
End If