express-route-dateversioning

Express middleware for versioning routes according dates.

Why to use?

Date versioning your API enables you to develop and release your API in individual pieces or microservices. Defining the API date version lets to defer any of the versions released after the date, keeping your API consistent over time without having to define rigid numeric versions.

Install

$ npm install express-route-dateversioning --save

Usage

Setting up the server

const express = require('express');
const version = require('express-route-dateversioning');

let app = express();

// Version root middleware
app.get('/', version({
  '2017-01-18': (req, res) => { res.send('new pong'); },
  '2016-10-01': (req, res) => { res.send('old ping'); },
}));

Doing a request to versioned API

Api version can be defined either with apiversion query parameter or custom header

const request = require('request');

request.get('http://api.com/thing/1?apiversion=2017-01-19');

const request = require('request');

request({
  method: 'get',
  uri: 'http://api.com/thing/1',
  headers: {
    'apiversion': '2017-01-19'
  }
});

Custom configuration

Default query param (apiversion) and header (apiversion) names are also configurable

Note! This should be done before any versioned routes are set

const version = require('express-route-dateversioning');
version.config({
  queryparam: 'custom-apiversion',
  header: 'custom-apiversion'
});