Heroku + node.js错误（Web进程在启动后60秒内未能绑定到$ PORT）

#1 楼

.listen(process.env.PORT || 5000)

#2 楼

var server_port = process.env.YOUR_PORT || process.env.PORT || 80;
var server_host = process.env.YOUR_HOST || '0.0.0.0';
server.listen(server_port, server_host, function() {
    console.log('Listening on port %d', server_port);
});

#3 楼

worker: YOUR_COMMAND

heroku scale worker=1

#4 楼

# port (as described above) and host are both wrong
const host = 'localhost';
const port = 3000;

# use alternate localhost and the port Heroku assigns to $PORT
const host = '0.0.0.0';
const port = process.env.PORT || 3000;

app.listen(port, host, function() {
  console.log("Server started.......");
});

#5 楼

server.listen(config.port, config.ip, function () {
  console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});

server.listen(config.port, function () {
  console.log('Express server listening on %d, in %s mode', config.port, app.get('env'));
});

#6 楼

server.connection({ 
    host: 'localhost', 
    port: 8000 
});

server.connection({
    port: process.env.PORT || 3000 
});

#7 楼

app.listen(port);

app.listen(process.env.PORT, '0.0.0.0');

#8 楼

#9 楼

#10 楼

server.listen(5000);

#11 楼

...
"engines": {
"node": "5.0.0",
"npm": "4.6.1"
},
...

...
var port = process.env.PORT || 3000;
app.listen(port, "0.0.0.0", function() {
console.log("Listening on Port 3000");
});
...

#12 楼

//webpack.config.js add code like that

const HtmlWebPackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
var server_port = process.env.YOUR_PORT || process.env.PORT || 5000;
var server_host = process.env.YOUR_HOST || "0.0.0.0";

module.exports = {
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader"
        }
      },
      {
        test: /\.css$/,
        use: [MiniCssExtractPlugin.loader, "css-loader"]
      }
    ]
  },
  devServer: {
    disableHostCheck: true,
    contentBase: "./ dist",
    compress: true,
    inline: true,
    port: server_port,
    host: server_host

  },
  plugins: [
    new HtmlWebPackPlugin({
      template: "./src/index.html",
      filename: "index.html"
    }),
    new MiniCssExtractPlugin({
      filename: "[name].css",
      chunkFilename: "[id].css"
    })
  ]
};

#13 楼

web: node app.js

#14 楼

#15 楼

app.listen(process.env.PORT || 5000, function() {
    console.log("Server started.......");
});

#16 楼

#17 楼

const argv = require('yargs').argv;
const app = require('express')();

const port = argv.port || 8081;

app.listen(argv.port, ()=>{
    console.log('Probably listening to heroku $PORT now ', argv.port); // unless $PORT is undefined, in which case you're listening to 8081.
});

#18 楼

#19 楼

> server.listen({ port: process.env.PORT || 4000 }).then(({ url }) => { 
> console.log(`Server ready at ${url}`); });

#20 楼

#21 楼

 //server.js
const express = require('express')
const path = require('path')

const app = express()

app.use(express.static(path.resolve(__dirname, 'public')));
// and all the other stuff
module.exports = app

//app.js
const app = require('./server');
const port = process.env.PORT || 3000;
app.listen(port, '0.0.0.0', () => {
    console.log('Server is running s on port: ' + port)
});
 

#22 楼

const PORT = process.env.port || 4000

app.listen(PORT, () => {
  console.log(`Server listening on port ${PORT}`)
})

const PORT = process.env.PORT || 4000

app.listen(PORT, () => {
  console.log(`Server listening on port ${PORT}`)
})

#23 楼

#24 楼

  "scripts": {
    "start": "node index.js"
  }