Hands-On Microservices with Rust

GET requests

To send GET requests, we create a get_request function that expects a url parameter and returns a Future instance with binary data:

fn get_request(url: &str) -> impl Future<Item = Vec<u8>, Error = Error> {    client::ClientRequest::get(url)        .finish().into_future()        .and_then(|req| {            req.send()                .map_err(Error::from)                .and_then(|resp| resp.body().from_err())                .map(|bytes| bytes.to_vec())        })}

We use ClientRequestBuilder to create the ClientRequest instance. The ClientRequest struct already has shortcuts that create builders with a preset HTTP method. We call the get method that only sets the Method::GET value to a request that is implemented as the calling method of the ClientRequestBuilder instance. You can also use a builder to set ...