Chappai

In a Micro-Service Architecture, you have to handle the proxying, the load, and at least failures. One of the mandatory component is a Gateway.

The main goal of a Gateway is to keep track of all services registered, to authorize or not a user to access requested services, and if needed, to render data to fit with clients needs.

With Chappai (pronounced "Cha-Pa-Eye") you can monitor services, register you APIs and define custom data renders.

The registry part is handled by another library called Yemma. Feel free to checkout this project documentation to know more about the registry.

Setup

• In a classic nodeJS project, install the dependency.

npm i --save chappai

• In your main nodeJS file application (typically index.js) use it like so :

const gateway = require('chappai');
 
gateway
    .on(started, app => console.log(`Gateway listening on port ${app.settings.port}`))
    .start();

• Setup your environment:

export YEMMA_DB_URI=mongodb://localhost:27017/yemma
export YEMMA_PORT=9000
export PORT=6473
# Mandatory(*) For Authentication part 
export AUTH_REALM=auth
export AUTH_PATH=/api/v1/users/profile
export AUTH_HEADER=authorization
# Optional(*) For Access Control part 
export ACCESS_REALM=access

Reference

Chappai is the name of the stargate in the goa'uld language.