Trouble with using sockend with cote - cote

Question

I have conversion service from README, little edited
const cote = require('cote')
const responder = new cote.Responder({
name: 'currency conversion responder',
key: 'conversion',
respondsTo: ['convert']
})
const subscriber = new cote.Subscriber({ name: 'arbitration subscriber' })
const rates = { usd_eur: 0.91, eur_usd: 1.10 }
subscriber.on('rate updated', (update) => {
rates[update.currencies] = update.rate
})
responder.on('convert', (req, cb) => {
console.log(`Request: ${JSON.parse(req)}`)
const convertedRate = req.amount * rates[`${req.from}_${req.to}`]
cb(null, `${req.amount} ${req.from} => ${convertedRate} ${req.to}`)
})
and I created sockend.js
const cote = require('cote')
const app = require('http').createServer()
const io = require('socket.io').listen(app)
io.on('connection', (socket) => {
socket.join('room1')
})
app.listen(5555)
const sockend = new cote.Sockend(io, {
name: 'Sockend'
// key: 'a certain key'
})
Now I try to connect to sockend with socket.io client
const Io = require('socket.io-client')
// const socket = Io.connect('http://localhost:8080');
const url = 'http://127.0.0.1:5555/'
const socket = Io.connect(url)
const request = { type: 'convert', from: 'usd', to: 'eur', amount: 100 }
socket.on('connect', async () => {
console.log(socket.connected) // true
socket.emit('convert', request, function (data) {
console.log(`sockend response ${JSON.parse(data)}`)
})
})
But I never get convert request in my conversion-service responder.
What am I missing?

Answer 1

Your Sockend and your Responder key differ. They are not connected to each other. You need to either omit the key property in your Responder and get it picked up by a Sockend without a key on the same network. Or you make it equal to the key in your Sockend. Both of these work:
const responder = new cote.Responder({
name: 'currency conversion responder',
key: 'conversion',
respondsTo: ['convert']
})
const sockend = new cote.Sockend(io, {
name: 'Sockend',
key: 'conversion'
})
or
const responder = new cote.Responder({
name: 'currency conversion responder',
respondsTo: ['convert']
})
const sockend = new cote.Sockend(io, {
name: 'Sockend'
})