Minimal upload server on Rust 2018

Cargo.toml

[package]
name = "server"
version = "0.1.0"
edition = "2018"

[dependencies]
rocket = "^0.4.0"

Rocket.toml

[global.limits]
forms = 314572800

[global]
address = "0.0.0.0"

upload_server.rs

#![feature(proc_macro_hygiene, decl_macro)]

#[cfg(test)] mod tests;

use rocket::{routes, post, Data};
use std::io;

#[post("/upload", data = "<data>")]
fn upload(data: Data) -> io::Result<String> {
    data.stream_to_file("upload.data").map(|n| n.to_string())
}

fn main() {
    rocket::ignite().mount("/", routes![upload]).launch();
}