adding auth header to http c# code example

Example 1: http client include bearer

httpClient.DefaultRequestHeaders.Authorization =
    new AuthenticationHeaderValue("Bearer", "Your Oauth token");

Example 2: httpclient add authorization header symphony

$response = $client->request('GET', 'https://...', [
    'auth_basic' => ['the-username', 'the-password'],
    // ...
]);