heroku eureka-js-client node- Spring Cloud Netflix Support - - node.js

Question

What I want to achieve is:
registering a node.js service in my eureka-server in heroku.
So far i can register a regular eureka-client in my eureka-server in heroku, without problems. But i am getting really confused with the configuration when try with node.js service...
I thought eureka-js-client was the solution, no success so far...
Code below.
const express = require('express');
const path = require('path');
const port = process.env.PORT || 3090;
const app = express();
app.use(express.static(__dirname));
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({extended: false}));
app.use(bodyParser.json());
app.get('*', (req, res) => {
res.sendFile(path.resolve(__dirname, 'index.html'))
});
const Eureka = require('eureka-js-client').Eureka;
const eureka = new Eureka({
instance: {
app: 'sheila',
hostName: 'localhost',
ipAddr: '127.0.0.1',
statusPageUrl: 'http://localhost:5000',
healthCheckUrl: 'http://localhost:5000/health',
port: {
'$': 5000,
'#enabled': 'true',
},
vipAddress: 'myvip',
dataCenterInfo: {
'#Class': 'com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo',
name: 'MyOwn',
},
},
eureka: {
host: 'localhost',
port: 8761,
servicePath: '/eureka/apps/',
},
});
eureka.logger.level('debug');
eureka.start(function(error){
console.log(error || 'complete');
});
// ------------------ Server Config --------------------------------------------
var server = app.listen(5000, function () {
var port = server.address().port;
console.log('Listening at %s', port);
});
First i've tried locally after running docker run -it -p 8761:8761 springcloud/eureka on my docker console. But i get this error:
Problem making eureka request { [Error: connect ECONNREFUSED 127.0.0.1:8761]
code: 'ECONNREFUSED',
errno: 'ECONNREFUSED',
syscall: 'connect',
address: '127.0.0.1',
port: 8761 }
if i run it as it is from a heroku service, It does not execute :( :(
I also tried by substituting the host for the url of my heroku eureka server, but then i get 401 or 404 errors. The eureka server requires a password which i added in my heroku client js .
Any ideas?

Answer 1

You need to include an instanceId which should be a unique identifier of this instance.
const eureka = new Eureka({
instance: {
instanceId:'sheila',
app: 'sheila',
hostName: 'localhost',
ipAddr: '127.0.0.1',
statusPageUrl: 'http://localhost:5000',
healthCheckUrl: 'http://localhost:5000/health',
port: {
'$': 5000,
'#enabled': 'true',
},
vipAddress: 'myvip',
dataCenterInfo: {
'#Class': 'com.netflix.appinfo.InstanceInfo$DefaultDataCenterInfo',
name: 'MyOwn',
},
},
eureka: {
host: 'localhost',
port: 8761,
servicePath: '/eureka/apps/',
},
});