Visual FoxPro Requires Chilkat v11.0.0+

Azure OAuth2 Client Credentials Grant Flow

See more OAuth2 Examples

Demonstrates how to get an OAuth2 access token for an Azure Registered App using the Client Credentials Grant Flow.

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

Visual FoxPro

LOCAL lnSuccess
LOCAL loHttp
LOCAL loReq
LOCAL lcUrl
LOCAL loResp
LOCAL lnStatusCode
LOCAL loJson

lnSuccess = 0

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

loHttp = CreateObject('Chilkat.Http')

loReq = CreateObject('Chilkat.HttpRequest')
loReq.AddParam("client_secret","CLIENT_SECRET")
loReq.AddParam("client_id","CLIENT_ID")

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

loReq.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
lcUrl = "https://login.microsoftonline.com/TENANT_ID/oauth2/v2.0/token"

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

loResp = CreateObject('Chilkat.HttpResponse')
lnSuccess = loHttp.HttpReq(lcUrl,loReq,loResp)
IF (lnSuccess = 0) THEN
    ? loHttp.LastErrorText
    RELEASE loHttp
    RELEASE loReq
    RELEASE loResp
    CANCEL
ENDIF

lnStatusCode = loResp.StatusCode
? "Response status code = " + STR(lnStatusCode)

loJson = CreateObject('Chilkat.JsonObject')
loJson.Load(loResp.BodyStr)

loJson.EmitCompact = 0
? loJson.Emit()

*  Sample successful output:

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

IF (lnStatusCode = 200) THEN
    loJson.WriteFile("qa_data/tokens/azureClientCredentialsToken.json")
    ? "Success."
ELSE
    ? "Failed."
ENDIF

RELEASE loHttp
RELEASE loReq
RELEASE loResp
RELEASE loJson