OpenFaaS Async Rust HTTP Template

This repository contains the template for OpenFaaS using the upgraded of-watchdog which allows for higher throughput.

$ faas template pull https://github.com/GnaphronG/asyncrust-openfaas-http-template.git
$ faas new --list
Languages available as templates:
- asyncrust-http-template

This template uses hyper server. This allows additional context available in the request (by providing the full body to the handler) and more control over the response by passing it back to the HTTP reponse context.

Using the template

First, pull the template with the faas CLI and create a new function:

$ faas template pull https://github.com/GnaphronG/asyncrust-openfaas-http-template.git
$ faas-cli new --lang asyncrust-http-template <function name>

In the directory that was created, using the name of you function, you'll find lib.rs. It will look like this:

use hyper::{Body, Request, Response};

const PHRASE: &str = "Hello, World!";

pub async fn handle(_req: Request<Body>) -> Response<Body> {
    Response::new(Body::from(PHRASE))
}

This is a simple implementation of a hello-world function.