Rust

Azure AD Service-to-service access token request

See more Azure OAuth2 Examples

Send an Azure AD service-to-service token request to get an access token using a shared secret. Rust

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

let http = chilkat::Http::new();

// To see the exact HTTP request sent and the response, set the SessionLogFilename property:
http.set_session_log_filename("qa_output/chilkatHttpLog.txt");

let req = chilkat::HttpRequest::new();

// Set the following request params:
// grant_type 	required 	Specifies the requested grant type. In a Client Credentials Grant flow, the value must be client_credentials.
// 
// client_id 	required 	Specifies the Azure AD client id of the calling web service. 
//     To find the calling application's client ID, in the Azure portal, click Azure Active Directory, click App registrations, click the application. 
//     The client_id is the Application ID
// 
// client_secret 	required 	Enter a key registered for the calling web service or daemon application in Azure AD. 
//     To create a key, in the Azure portal, click Azure Active Directory, click App registrations, click the application, click Settings, click Keys, and add a Key.
//     URL-encode this secret when providing it.
// 
// resource 	required 	Enter the App ID URI of the receiving web service. To find the App ID URI, in the Azure portal, click Azure Active Directory, 
//     click App registrations, click the service application, and then click Settings and Properties.

req.add_param("grant_type", "client_credentials");
req.add_param("client_id", "MY_CLIENT_ID");
req.add_param("client_secret", "MY_CLIENT_SECRET");
req.add_param("resource", "https://service.contoso.com/");

req.set_http_verb("POST");
req.set_content_type("application/x-www-form-urlencoded");

let resp = chilkat::HttpResponse::new();
if http.http_req("https://login.microsoftonline.com/<tenant_id>/oauth2/token", &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

let resp_status_code = resp.status_code();
println!("Response Status Code = {}", resp_status_code);

let json = chilkat::JsonObject::new();
json.set_emit_compact(false);
let _ = json.load(&resp.body_str());
println!("Response JSON:");
println!("{}", json.emit().unwrap_or_default());

if resp_status_code >= 400 {
    println!("Response Header:");
    println!("{}", resp.header());
    println!("Failed.");
    return;
}

// Sample response:

// {
//   "token_type": "Bearer",
//   "expires_in": "3599",
//   "ext_expires_in": "3599",
//   "expires_on": "1570059833",
//   "not_before": "1570055933",
//   "resource": "https://adminchilkatsoft.onmicrosoft.com/eb1b8ced-76b7-4845-aec5-d3e91776e345",
//   "access_token": "eyJ0eXAiO ... pmgw"
// }

// To get the items from the JSON....
let token_type = json.string_of("token_type").unwrap_or_default();
let expires_in = json.string_of("expires_in").unwrap_or_default();
let ext_expires_in = json.string_of("ext_expires_in").unwrap_or_default();
let expires_on = json.string_of("expires_on").unwrap_or_default();
let not_before = json.string_of("not_before").unwrap_or_default();
let resource = json.string_of("resource").unwrap_or_default();
let access_token = json.string_of("access_token").unwrap_or_default();