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(PHP ActiveX) Microsoft Graph OAuth2 Client Credentials Grant FlowDemonstrates how to get a Microsoft Graph access token using the Client Credentials Grant Flow. You can use the OAuth 2.0 client credentials grant specified in RFC 6749, sometimes called two-legged OAuth, to access web-hosted resources by using the identity of an application. This type of grant is commonly used for server-to-server interactions that must run in the background, without immediate interaction with a user. These types of applications are often referred to as daemons or service accounts. For more information, see https://docs.microsoft.com/en-us/azure/active-directory/develop/v2-oauth2-client-creds-grant-flow
<?php // 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 new COM('Chilkat_9_5_0.Chilkat.Http') $http = new COM("Chilkat.Http"); // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.HttpRequest') $req = new COM("Chilkat.HttpRequest"); $req->AddParam('client_secret','CLIENT_SECRET'); $req->AddParam('client_id','CLIENT_ID'); // Don't know if the scopes valid for the client credentials grant are different than the scopes for the 3-legged Authorization Code Grant... $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'; // resp is a Chilkat.HttpResponse $resp = $http->PostUrlEncoded($url,$req); if ($http->LastMethodSuccess != 1) { print $http->LastErrorText . "\n"; exit; } $statusCode = $resp->StatusCode; print 'Response status code = ' . $statusCode . "\n"; // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $json = new COM("Chilkat.JsonObject"); $json->Load($resp->BodyStr); $json->EmitCompact = 0; print $json->emit() . "\n"; // Sample successful output: // { // "token_type": "Bearer", // "expires_in": 3599, // "ext_expires_in": 3599, // "access_token": "eyJ0eX...K0jOERg" // } if ($statusCode == 200) { $json->WriteFile('qa_data/tokens/msGraphClientCredentialsToken.json'); print 'Success.' . "\n"; } else { print 'Failed.' . "\n"; } ?> |
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