chore(mempool_infra): add documentation to remote component server

crates/mempool_infra/src/component_server/remote_component_server.rs

@@ -19,6 +19,89 @@ use crate::component_definitions::{
     APPLICATION_OCTET_STREAM,
 };
 
+/// The `RemoteComponentServer` struct is a generic server that handles requests and responses for a
+/// specified component. It receives requests, processes them using the provided component, and
+/// sends back responses. The server needs to be started using the `start` function, which runs
+/// indefinitely.
+///
+/// # Type Parameters
+///
+/// - `Component`: The type of the component that will handle the requests. This type must implement
+///   the `ComponentRequestHandler` trait, which defines how the component processes requests and
+///   generates responses.
+/// - `Request`: The type of requests that the component will handle. This type must implement the
+///   `serde::de::DeserializeOwned` (e.g. by using #[derive(Deserialize)]) trait.
+/// - `Response`: The type of responses that the component will generate. This type must implement
+///   the `Serialize` trait.
+///
+/// # Fields
+///
+/// - `component`: The component responsible for handling the requests and generating responses.
+/// - `socket`: A socket address for the server to listen on.
+///
+/// # Example
+/// ```rust
+/// // Example usage of the RemoteComponentServer
+/// use async_trait::async_trait;
+/// use serde::{Deserialize, Serialize};
+/// use starknet_mempool_infra::component_runner::{ComponentStartError, ComponentStarter};
+/// use tokio::task;
+///
+/// use crate::starknet_mempool_infra::component_definitions::ComponentRequestHandler;
+/// use crate::starknet_mempool_infra::component_server::{
+///     ComponentServerStarter,
+///     RemoteComponentServer,
+/// };
+///
+/// // Define your component
+/// struct MyComponent {}
+///
+/// #[async_trait]
+/// impl ComponentStarter for MyComponent {
+///     async fn start(&mut self) -> Result<(), ComponentStartError> {
+///         Ok(())
+///     }
+/// }
+///
+/// // Define your request and response types
+/// #[derive(Deserialize)]
+/// struct MyRequest {
+///     pub content: String,
+/// }
+///
+/// #[derive(Serialize)]
+/// struct MyResponse {
+///     pub content: String,
+/// }
+///
+/// // Define your request processing logic
+/// #[async_trait]
+/// impl ComponentRequestHandler<MyRequest, MyResponse> for MyComponent {
+///     async fn handle_request(&mut self, request: MyRequest) -> MyResponse {
+///         MyResponse { content: request.content.clone() + " processed" }
+///     }
+/// }
+///
+/// #[tokio::main]
+/// async fn main() {
+///     // Instantiate the component.
+///     let component = MyComponent {};
+///
+///     // Set the ip address and port of the server's socket.
+///     let ip_address = std::net::IpAddr::V6(std::net::Ipv6Addr::new(0, 0, 0, 0, 0, 0, 0, 1));
+///     let port: u16 = 8080;
+///
+///     // Instantiate the server.
+///     let mut server = RemoteComponentServer::<MyComponent, MyRequest, MyResponse>::new(
+///         component, ip_address, port,
+///     );
+///
+///     // Start the server in a new task.
+///     task::spawn(async move {
+///         server.start().await;
+///     });
+/// }
+/// ```
 pub struct RemoteComponentServer<Component, Request, Response>
 where
     Component: ComponentRequestHandler<Request, Response> + Send + 'static,