main_5.rs

PHOTO

Fri Jun 04 2021 05:28:37 GMT+0000 (UTC)

Saved by @fdeantoni #rust

let hello = warp::path!("hello" / String)
        .and(warp::any().map(move || validator.clone()))
        .and(warp::addr::remote())
        .and_then(response);

warp::serve(hello).run(([127, 0, 0, 1], 3030)).await;

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eth-demo

@fdeantoni

main_1.rs main_2.rs main_2.rs main_3.rs main_4.rs main_5.rs

#installation #linux #bash #wsl #cargo #rust

Install Cargo (Linux)

#!/usr/bin/env bash

# install cargo
sudo apt-get update -y
sudo apt-get install -y cargo

echo '\n# Add .cargo to $PATH\nexport PATH="~/.cargo/bin:$PATH"\n' >> ~/.zshrc

cargo install cargo-update

#rust #design #patterns

Rust Design Patterns

https://rust-unofficial.github.io/patterns/intro.html

Rust API Guidelines

https://rust-lang.github.io/api-guidelines/

#rust #performance

The Rust Performance Book

https://nnethercote.github.io/perf-book/title-page.html

let hello = warp::path!("hello" / String)
        .and(warp::any().map(move || validator.clone()))
        .and(warp::addr::remote())
        .and_then(response);

warp::serve(hello).run(([127, 0, 0, 1], 3030)).await;

async fn response(
    name: String,
    validator: Validator,
    remote: Option<SocketAddr>,
) -> Result<impl warp::Reply, warp::Rejection> {
    if let Some(addr) = remote {
        let ip_string = addr.ip().to_string();
        if validator.is_valid(ip_string.clone()).await {
            Ok(format!("Hello, {} from {}!", name, &ip_string))
        } else {
            Ok(format!("No key for {}!", &ip_string))
        }
    } else {
        Ok("No remote address!".to_string())
    }
}

let validator = Validator::new();

let path = std::path::Path::new(".env");
dotenv::from_path(path).ok();

if std::env::var("RUST_LOG").is_err() {
  std::env::set_var("RUST_LOG", "info");
}
env_logger::init();

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