0.1.12 refactored to use mqtt.js directly. Converts needed functions to promises. Updated other deps
David Kebler
parent
abec7cd661
commit
1e334022f4
|
|
@ -1,3 +1,3 @@
|
|||
/node_modules/
|
||||
/coverage/
|
||||
*.lock
|
||||
/archive/
|
||||
|
|
|
|||
|
|
@ -2,3 +2,5 @@ tests/
|
|||
test/
|
||||
*.test.js
|
||||
testing/
|
||||
archive/
|
||||
example/
|
||||
|
|
|
|||
12
.travis.yml
12
.travis.yml
|
|
@ -1,12 +0,0 @@
|
|||
language: node_js
|
||||
|
||||
node_js:
|
||||
- '7.10'
|
||||
- 'node'
|
||||
|
||||
sudo: false
|
||||
|
||||
script: npm test
|
||||
|
||||
after_success:
|
||||
- bash <(curl -s https://codecov.io/bash) || echo "Codecov did not collect coverage reports"
|
||||
|
|
@ -1,19 +0,0 @@
|
|||
import Client from '../src/client'
|
||||
// import btc from 'better-try-catch'
|
||||
|
||||
// let mqtt = new Client({id:'example-mqtt-client', url:'tcp://trantor:1883', topics:'test1'})
|
||||
let mqtt = new Client({id:'example-mqtt-client', topics:'lights'})
|
||||
|
||||
;
|
||||
(async () => {
|
||||
|
||||
console.log(await mqtt.connect())
|
||||
await mqtt.send({cmd:'lights/on', status:'sent to topics lights'})
|
||||
await mqtt.send('topic2', {cmd:'test', status:'sent to topic2 explicitly but not listening'})
|
||||
// await mqtt.subscribe('topic2')
|
||||
// await mqtt.send('topic2', {cmd:'test', status:'sent to topic2 with subscription'})
|
||||
// now can send via some mqtt client
|
||||
|
||||
})().catch(err => {
|
||||
console.error('FATAL: UNABLE TO START SYSTEM!\n',err)
|
||||
})
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
import MQTT from '../src/mqtt'
|
||||
// import btc from 'better-try-catch'
|
||||
const HOST='nas.kebler.net'
|
||||
let client = new MQTT({id:'example-mqtt-client', topics:'', connect:{hostname:HOST}})
|
||||
|
||||
;
|
||||
(async () => {
|
||||
// mqtt.registerPacketProcessor(logit)
|
||||
console.log(await client.connect())
|
||||
client.send({cmd:'lights/on', id:'someidofalight'})
|
||||
|
||||
})().catch(err => {
|
||||
console.error('FATAL: UNABLE TO START SYSTEM!\n',err)
|
||||
})
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
import Client from '../src/client'
|
||||
// import btc from 'better-try-catch'
|
||||
const HOST='nas.kebler.net'
|
||||
let mqtt = new Client({id:'example-mqtt-client', topics:'', connect:{hostname:HOST}})
|
||||
|
||||
// async function logit (packet) {
|
||||
// if (packet.cmd === 'lights') {
|
||||
// console.log(packet)
|
||||
// }
|
||||
// return null
|
||||
// }
|
||||
|
||||
;
|
||||
(async () => {
|
||||
// mqtt.registerPacketProcessor(logit)
|
||||
console.log(await mqtt.connect())
|
||||
mqtt.send({cmd:'lights/status', id:'someidofalight'})
|
||||
mqtt.subscribe('test')
|
||||
// await mqtt.send('topic2', {cmd:'test', status:'sent to topic2 explicitly but not listening'})
|
||||
// await mqtt.subscribe('topic2')
|
||||
// await mqtt.send('topic2', {cmd:'test', status:'sent to topic2 with subscription'})
|
||||
// now can send via some mqtt client
|
||||
|
||||
})().catch(err => {
|
||||
console.error('FATAL: UNABLE TO START SYSTEM!\n',err)
|
||||
})
|
||||
23
package.json
23
package.json
|
|
@ -1,13 +1,13 @@
|
|||
{
|
||||
"name": "@uci/mqtt",
|
||||
"version": "0.1.11",
|
||||
"description": "mqtt client with json payloads and mqtt custom broker",
|
||||
"version": "0.1.12",
|
||||
"description": "mqtt client with UCI json packet payloads",
|
||||
"main": "src",
|
||||
"scripts": {
|
||||
"testw": "mocha -r esm test/*.test.mjs --watch --recurse --watch-extensions mjs",
|
||||
"test": "mocha -r esm test/*.test.mjs",
|
||||
"example": "node -r esm example/example",
|
||||
"dev": "./node_modules/.bin/nodemon -r esm example/example"
|
||||
"client": "node -r esm example/client",
|
||||
"dev": "UCI_ENV=dev UCI_LOG_LEVEL=debug ./node_modules/.bin/nodemon -r esm example/example"
|
||||
},
|
||||
"author": "David Kebler",
|
||||
"license": "MIT",
|
||||
|
|
@ -25,19 +25,18 @@
|
|||
},
|
||||
"homepage": "https://github.com/uCOMmandIt/uci-changeme#readme",
|
||||
"dependencies": {
|
||||
"@uci-utils/logger": "^0.0.14",
|
||||
"async-mqtt": "1.0.1",
|
||||
"@uci-utils/logger": "^0.0.15",
|
||||
"better-try-catch": "0.6.2",
|
||||
"is-plain-object": "^2.0.4",
|
||||
"lodash.merge": "^4.6.1",
|
||||
"is-plain-object": "^3.0.0",
|
||||
"lodash.union": "^4.6.0",
|
||||
"lodash.xor": "^4.5.0",
|
||||
"mqtt-match": "^2.0.2"
|
||||
"mqtt": "^3.0.0",
|
||||
"mqtt-match": "^2.0.3"
|
||||
},
|
||||
"devDependencies": {
|
||||
"chai": "^4.2.0",
|
||||
"esm": "^3.2.5",
|
||||
"mocha": "^5.2.0",
|
||||
"nodemon": "^1.18.10"
|
||||
"esm": "^3.2.25",
|
||||
"mocha": "^6.2.0",
|
||||
"nodemon": "^1.19.1"
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1 +1,5 @@
|
|||
# uCOMmandIt MQTT
|
||||
# uCOMmandIt MQTT client
|
||||
|
||||
This module integrates MQTT messaging with UCI Packet Messaging.
|
||||
|
||||
One can `send` a UCI JSON packet and by default the command will be translated into the MQTT Topic and the remainder into the payload and vice versa a listener waits for incoming MQTT messages translates them to UCI packages
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
import Client from './client'
|
||||
import MQTT from './mqtt'
|
||||
// import Broker from './broker'
|
||||
|
||||
export { Client as Client }
|
||||
// export { Broker as Broker }
|
||||
export default Client
|
||||
export { MQTT as MQTT }
|
||||
export default MQTT
|
||||
|
|
|
|||
|
|
@ -1,6 +1,4 @@
|
|||
import { connect } from 'async-mqtt'
|
||||
import { promisify } from 'util'
|
||||
import merge from 'lodash.merge'
|
||||
import { connect } from 'mqtt'
|
||||
import btc from 'better-try-catch'
|
||||
import union from 'lodash.union'
|
||||
import xor from 'lodash.xor'
|
||||
|
|
@ -31,15 +29,18 @@ class MQTTClient {
|
|||
name: 'mqtt',
|
||||
id: this.id
|
||||
})
|
||||
this.type = opts.type || 'client'
|
||||
this.url = opts.url || null
|
||||
this.error = opts.error || 'error' // error topic
|
||||
// subscription topics can be string of commna delimited or array of strings. If none they by default topic is id
|
||||
this.errorTopic = opts.errorTopic || 'error' // a generic error topic
|
||||
// default subscription topics can be string of commna delimited or array of strings. If none they by default topic is id
|
||||
this.topics = Array.isArray(opts.topics)
|
||||
? opts.topics
|
||||
: opts.topics
|
||||
? opts.topics.split(',')
|
||||
: [this.id]
|
||||
this.opts = opts.connect || {} // see options for new mqtt.Client
|
||||
this.topics.push('reply')
|
||||
this.connectOpts = opts.connect || {} // see options for new mqtt.Client
|
||||
this.mqtt = {} // orginal mqtt.js object when created by connect
|
||||
// self bindings
|
||||
this.connect = this.connect.bind(this)
|
||||
this.push = this.send
|
||||
|
|
@ -52,90 +53,129 @@ class MQTTClient {
|
|||
*/
|
||||
async connect() {
|
||||
return new Promise((resolve, reject) => {
|
||||
let mqtt = connect(
|
||||
this.mqtt = connect(
|
||||
this.url,
|
||||
this.opts
|
||||
this.connectOpts
|
||||
)
|
||||
// version 2.0 and up messes this up. Need to look at another way
|
||||
// maybe better not to merge but have mqtt client be a property of class
|
||||
this._extend(mqtt, 'subscribe,unsubscribe') // merge mqtt client into class extend with given functions
|
||||
this.close = promisify(this.end).bind(this)
|
||||
let timeout = this.opts.connectTimeout || 5000
|
||||
let timeout = this.connecOpts || 5000
|
||||
setTimeout(() => {
|
||||
reject({msg:'ending mqtt connection attempt, no broker', url:this.url, opts:this.opts})
|
||||
reject({msg:'ending mqtt connection attempt, no broker', url:this.url, options:this.connectOpts})
|
||||
}, timeout)
|
||||
|
||||
this.once('connect', () => {
|
||||
this.mqtt.once('connect', () => {
|
||||
this._log()
|
||||
this._listen()
|
||||
|
||||
this.on('reconnect', () => {
|
||||
this.mqtt.on('reconnect', () => {
|
||||
log.debug({method:'connect', line:71, msg:'mqtt client reconnected to broker'})
|
||||
this.subscribe(this.topics)
|
||||
this._subscribe(this.topics) // resubscribe
|
||||
})
|
||||
|
||||
this.on('error', err => {
|
||||
this.mqtt.on('error', err => {
|
||||
log.fatal({method:'connect', line:76, err: err, msg:'connection error to broker'})
|
||||
})
|
||||
|
||||
this.subscribe(this.topics)
|
||||
log.debug({method:'connect', line:80, options: this._client.options, msg:`mqtt client connected to broker at ${this._client.options.hostname}:${this._client.options.port}`})
|
||||
resolve(`mqtt client connected to broker at ${this._client.options.hostname}:${this._client.options.port}`)
|
||||
this._subscribe(this.topics) // initial subscriptions
|
||||
log.debug({method:'connect', line:80, options: this.mqtt.options, msg:`mqtt client connected to broker at ${this.mqtt.options.hostname}:${this.mqtt.options.port}`})
|
||||
resolve(`mqtt client connected to broker at ${this.mqtt.options.hostname}:${this.mqtt.options.port}`)
|
||||
})
|
||||
}) //end promise
|
||||
}
|
||||
|
||||
async subscribe(topic, options = {}) {
|
||||
if (options.pub) {
|
||||
// topic is only comma delimited string or array of topics
|
||||
if (typeof topic === 'string') topic = topic.split(',')
|
||||
this.topics = union(this.topics, topic)
|
||||
}
|
||||
this.topics = union(this.topics, topic || [])
|
||||
log.debug({method:'subscribe', line:91, msg:`subscription for topic ${topic} added`})
|
||||
this._subscribe(topic,options)
|
||||
}
|
||||
|
||||
|
||||
async unsubscribe(topic, options = {}) {
|
||||
if (!options.pub) {
|
||||
if (typeof topic === 'string') topic = topic.split(',')
|
||||
this.topics = xor(this.topics, topic)
|
||||
}
|
||||
this._unsubscribe(topic)
|
||||
this.topics = xor(this.topics, topic || [])
|
||||
|
||||
return new Promise((resolve, reject) => {
|
||||
if (!topic) reject('no topic supplied')
|
||||
if (!this.mqtt.connected) reject('no connection to broker')
|
||||
this.mqtt.unsubscribe(topic,options, (err, granted) => {
|
||||
if (err) reject(err)
|
||||
else resolve(granted)
|
||||
})
|
||||
})
|
||||
}
|
||||
|
||||
async send(packet, topics, options) {
|
||||
if (!this.hasOwnProperty('publish')) {
|
||||
log.error({method:'send', line:105, url:this.url, opts:this.opts, msg:'connect method never called, initialization needed, aborting send'})
|
||||
return
|
||||
// sends a uci packet as an mqtt message where cmd: is topic
|
||||
// TODO if sending as a client (default) add a _header with ID to packet and set subcription for id and in _listen emit id with payload when it comes back
|
||||
// if a "server" then after processing publish back as /ID/theidnumber
|
||||
async send(packet, topic, options) {
|
||||
|
||||
log.debug(({msg:'sending a packet', packet:packet,topic:topic,options:options}))
|
||||
|
||||
if (!this.mqtt.connected) {
|
||||
log.error({method:'send', line:105, url:this.url, opts:this.opts, msg:'no active connection to broker'})
|
||||
return Promise.reject('no active connection to broker')
|
||||
}
|
||||
if (typeof topics !== 'string' && !Array.isArray(topics)) {
|
||||
options = topics
|
||||
topics = this.topics
|
||||
} else {
|
||||
if (typeof topics === 'string') topics = topics.split(',')
|
||||
|
||||
if (topic == null || typeof topic !== 'string') { // if neither then assume none and what is passed is options
|
||||
options = topic || {}
|
||||
topic =''
|
||||
}
|
||||
|
||||
let payload
|
||||
if (typeof packet !== 'string') {
|
||||
// packet is an object
|
||||
topic = packet.cmd ? packet.cmd.replace(/\./gi,'/') : topic
|
||||
if (packet.payload) payload = packet.payload.toString()
|
||||
else {
|
||||
payload = this._serialize(packet)
|
||||
payload = this._serialize(packet) // payload is entire packet
|
||||
if (!payload) payload = this._serialize({ err: 'could not serialze packet' })
|
||||
}
|
||||
topics = packet.cmd ? [packet.cmd.replace(/\./gi,'/') ] : topics // if payload has a cmd use that as topic, convert any . to slash
|
||||
} else payload = packet // packet was just a string
|
||||
} else payload = packet // packet was just a string so it's the payload
|
||||
|
||||
if (topic.length === 0) {
|
||||
log.warn({msg:'publish aborted, no topic pass nor command in packet', packet:packet, topic:topic})
|
||||
return {error:'publish aborted, no topic given or no command in packet', packet:packet, topic:topic}
|
||||
}
|
||||
|
||||
let pubs = []
|
||||
topics.forEach(async topic => {
|
||||
log.debug({method:'send', line:127, msg:'mqtt publishing', payload:payload, topic:topic})
|
||||
pubs.push(this.publish(topic, payload, options))
|
||||
return await this.publish(topic, payload, options)
|
||||
}
|
||||
|
||||
publish (...args) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (!this.mqtt.connected) reject('no connection to broker')
|
||||
this.mqtt.publish(...args, (err, result) => {
|
||||
if (err) reject(err)
|
||||
else resolve(result)
|
||||
})
|
||||
})
|
||||
}
|
||||
|
||||
end (...args) {
|
||||
return new Promise((resolve, reject) => {
|
||||
this._client.end(...args, (err, result) => {
|
||||
if (err) reject(err)
|
||||
else resolve(result)
|
||||
})
|
||||
})
|
||||
return await Promise.all(pubs)
|
||||
}
|
||||
|
||||
registerPacketProcessor(func) {
|
||||
this._packetProcess = func
|
||||
}
|
||||
|
||||
async _subscribe (topic, options={}) {
|
||||
return new Promise((resolve, reject) => {
|
||||
if (!this.mqtt.connected) reject('no connection to broker')
|
||||
if (!topic) reject('no topic supplied')
|
||||
this.mqtt.subscribe(topic,options, (err, granted) => {
|
||||
if (err) reject(err)
|
||||
else resolve(granted)
|
||||
})
|
||||
})
|
||||
}
|
||||
|
||||
_serialize(json) {
|
||||
let [err, payload] = btc(JSON.stringify)(json)
|
||||
if (err) {
|
||||
|
|
@ -144,22 +184,22 @@ class MQTTClient {
|
|||
}
|
||||
return payload
|
||||
}
|
||||
|
||||
// TODO if client set up reply subscription with message id and then emit that for resolving send
|
||||
// if server then take id and send message back with that appended to topic
|
||||
_listen() {
|
||||
log.info({method:'_listen', line:147, msg:`listening for incoming mqtt packets from broker on topics ${this.topics}`})
|
||||
this.on('message', messageProcess.bind(this))
|
||||
this.mqtt.on('message', messageProcess.bind(this))
|
||||
|
||||
async function messageProcess(topic, payload) {
|
||||
log.debug({method:'_listen', line:153 ,msg:'incoming mqtt message to process', topic:topic, payload:payload})
|
||||
let packet = this._handlePayload(payload)
|
||||
if (packet) packet.cmd = packet.cmd || topic
|
||||
// payload had no command that use topic as cmd
|
||||
if (packet) packet.cmd = packet.cmd || topic // if payload had no command so use topic as cmd
|
||||
else packet = { cmd: topic }
|
||||
let res = (await this._packetProcess(packet, topic)) || {}
|
||||
log.debug({method:'_listen', line:159, msg:'processed packet back to broker', res:res, topics:this.topics})
|
||||
if (this.topics.some(topic => isTopicMatch(topic,res.cmd))) {
|
||||
if (this.topics.some( topic => isTopicMatch(topic,this.error))) {
|
||||
log.warn({method:'_listen', line:165, msg:'unable to send error, subscried to error topic', subscribed:this.topics, errorTopic:this.error})
|
||||
if (this.topics.some(topic => isTopicMatch(topic,res.cmd || ''))) {
|
||||
if (this.topics.some( topic => isTopicMatch(topic,this.errorTopic))) {
|
||||
log.warn({method:'_listen', line:165, msg:'unable to send error, subscried to error topic', subscribed:this.topics, errorTopic:this.errorTopic})
|
||||
return
|
||||
}
|
||||
else {
|
||||
|
|
@ -167,7 +207,8 @@ class MQTTClient {
|
|||
log.warn({method:'_listen', line:168,msg:'sent mqtt error message', error:res})
|
||||
}
|
||||
}
|
||||
this.send(res)
|
||||
// TODO if acting as a "server" then send back the result, if client and ID is matched then emit for send function
|
||||
// if (res) this.send(res)
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -181,12 +222,9 @@ class MQTTClient {
|
|||
// default packet process just a simple console logger. ignores any cmd: prop
|
||||
_packetProcess(packet, topic) {
|
||||
console.log('=========================')
|
||||
console.log(
|
||||
'default consumer processor\npacket from broker on topic:',
|
||||
topic
|
||||
)
|
||||
console.log('default consumer processor\npacket from broker on topic:',topic)
|
||||
console.log('replace this by setting new function with .registerPacketProcessor')
|
||||
console.dir(packet)
|
||||
console.log(packet.status)
|
||||
console.log('========================')
|
||||
}
|
||||
|
||||
|
|
@ -198,36 +236,23 @@ class MQTTClient {
|
|||
id: this.id
|
||||
})
|
||||
|
||||
this.on('close', () => {
|
||||
this.mqtt.on('close', () => {
|
||||
log.debug({method:'_log', line:193, msg:'connection to broker was closed'})
|
||||
})
|
||||
|
||||
this.on('offline', () => {
|
||||
this.mqtt.on('offline', () => {
|
||||
log.warn({method:'_log', line:197, msg:'this client has gone offline from broker'})
|
||||
})
|
||||
|
||||
this.on('packetsend', packet => {
|
||||
this.mqtt.on('packetsend', packet => {
|
||||
log.debug({method:'_log', line:201, packet: packet, msg:'outgoing packet to mqtt broker'})
|
||||
})
|
||||
|
||||
this.on('packetreceive', packet => {
|
||||
this.mqtt.on('packetreceive', packet => {
|
||||
log.debug({method:'_log', line:205, packet: packet, msg:'incoming packet from mqtt broker'})
|
||||
})
|
||||
}
|
||||
|
||||
_extend(obj, funcs) {
|
||||
let temp = {}
|
||||
funcs = funcs.split(',')
|
||||
funcs.forEach(func => {
|
||||
temp[func] = this[func]
|
||||
})
|
||||
merge(this, obj)
|
||||
|
||||
funcs.forEach(func => {
|
||||
this['_' + func] = this[func]
|
||||
this[func] = temp[func]
|
||||
})
|
||||
}
|
||||
} // end mqtt client class
|
||||
|
||||
export default MQTTClient
|
||||
Loading…
Reference in New Issue