I am getting a 401 on Guzzle 4.2 and the same setup works on Postman. Code below.
// Create a client with a base URL
$client = new GuzzleHttp\\Client([\'
Looking at the documentation page as per this line:
$response = $client->get();
It will send a get request, with no authorisation, hence the 401 response.
Try the following instead
// Create a client with a base URL.
$client = new GuzzleHttp\Client();
$request = $client-> createRequest('GET', 'cloud.feedly.com/v3/streams/contents?streamId=user/user-id/category/global.all&count=1');
$request->setHeader('Authorization', "auth-code");
// Send.
$response = $client->send($request);
dd($response->json());
The above creates a request, set the authorisation header on it. Then once prepared it actually sends it.
I think it worked in Postman because your headers are set, if you remove the authorization header it will likely fail there too.
I have not tested this but think it will work.