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cookiesrustsession-cookieshyper

Keeping cookie between transactions with Hyper

I would like to be able to keep the cookie of a previous request for the next one :

let hyper_client = Client::new();
server_response  = hyper_client.request(Method::Get, url).headers(Headers::new()).send();

Assuming the code above compile, how could I retrieve the cookie of this session ?

Solution

  • Something like this should work:

    match server_response.headers.get() {
   Some(&SetCookie(ref content)) => println!("Cookie: {:?}", content),
   _ => println!("No cookie found"),
}

    Use the Cookie header for cookies sent to the server, and SetCookie for cookies sent from the server. I'm emphasising that because I only saw Cookie at first and it caught me out.

    Also, notice that I am requesting the SetCookie header just by type inference from the pattern match. I could also have used the turbo-fish: headers.get::<SetCookie>().

    If you need to send the same cookie back the server, you can just clone the SetCookie values from the response back into a new Cookie header for the request:

    let mut headers = Headers::new();
// if you received cookies in the server response then send the same ones back
if let Some(&SetCookie(ref content)) = server_response.headers.get() {
   headers.set(Cookie(content.clone()));
}

hyper_client.request(Method::Get, url)
    .headers(headers)
    .send();