Hands-On Microservices with Rust

Client

To interact with other microservice instances and to call their remote methods, we will create a separate struct, because it's more convenient than using the JSON-RPC Cilent directly. But in any case, we use this type internally in our struct:

struct Remote {    client: Client,}

We will use the Remote struct to make calls to remote services. To create the struct, we will use the following constructor:

impl Remote {    fn new(addr: SocketAddr) -> Self {        let url = format!("http://{}", addr);        let client = Client::new(url, None, None);        Self {            client        }    }}

The Client struct expects the String URL as a parameter, but we will use SocketAddr to create a URL.

Also, we need a generic function that will use the Client instance to call remote methods. ...