metacall / express-faas-rpc-example

How to write a FaaS in NodeJS with less than 100LoC by using MetaCall.

MetaCall Express FaaS RPC Example

An example of building a FaaS server with NodeJS and Express, with a client based on RPC Loader.

This example shows how to implement a server offering FaaS facilities by using MetaCall with NodeJS, the RPC calls from client look like normal function calls.

Run it

1. Install MetaCall:

   curl -sL https://raw.githubusercontent.com/metacall/install/master/install.sh | sh

2. Install dependencies:

   metacall npm install

3. In a terminal, run:

   $ metacall
   λ load node server.js

4. In another terminal, run:

   metacall client.js

   Or optionally, with CURL:

   curl -X POST -H 'Content-type: application/json' http://localhost:3051/call/sum --data '[3, 4]'
   curl -X POST -H 'Content-type: application/json' http://localhost:3051/call/mult --data '[2, 3]'

5. In order to close it, in the server terminal write:

   λ call close()
   λ exit