iopa-common-middleware

iopa-common-middleware

About

iopa-common-middleare is a core set of IOPA middleware for building self-hosted servers

Written in plain javascript for maximum portability to constrained devices

Status

Working prototype

Includes:

IOPA BackForth (middleware)

• Automatically matches requests and responses between connected devices based on sequential conversation

IOPA Cache and Match (middleware)

• Automatic caching of outbound requests

• Automatic matching of inbound responses to original requests based on session and message identifiers

• Compatible with any transport including MQTT, CoAP and raw TCP / UDP

IOPA ClientSend (middleware)

• Adds helper methods .send() and .observe() to IOPA context requests

• These methods return a promise which complete on response

Installation

npm install iopa-common-middleware

Usage

const iopa = require('iopa')
    , BackForth = require('iopa-common-middleware').BackForth
    , CacheMatch = require('iopa-common-middleware').Cache
    , ClientSend = require('iopa-common-middleware').ClientSend
       
function MyProtocolServer(options, appFunc) {

:

app.use(BackForth);
app.use(CacheMatch.Cache);
app.use(ClientSend);

:

See iopa-mqtt for a reference implementation of this repository