Facing NodeJS deploying error on Heroku, how can I fix it? - node.js

Question

I deployed my NodeJS app on Heroku, But I'm getting this error:
Image of error
I've tried to deploy my NodeJs app on Heroku, follows all steps on Heroku guide but I can't make it running.
How can I fix it?
This is my app.js :
const express = require('express');
const app = express();
const path = require('path');
app.get('/', async (req, res) => {
res.sendFile(path.join(__dirname + '/index.html'));
});
app.post('/hello', async (req, res) => {
// My code ....
});
app.listen(3000, () => console.log('listening on port 3000'));
This is my Package.json :
{
"name": "amer-api",
"version": "1.0.0",
"description": "Amer's personal website api.",
"author": "Amer Ansari",
"license": "ISC",
"homepage": "https://github.com/AmerAnsari/amer-api",
"repository": {
"type": "git",
"url": "git+https://github.com/AmerAnsari/amer-api.git"
},
"bugs": {
"url": "https://github.com/AmerAnsari/amer-api/issues"
},
"scripts": {
"start": "node app.js"
},
"main": "app.js",
"dependencies": {
"express": "^4.17.1",
"geoip-lite": "^1.4.2",
"nodemailer": "^6.4.6"
}
}
THere is the log (heroku logs --tail) :
amer#pire:~/Documents/GitHub/amer-api$ heroku logs --tail
2020-05-18T00:31:45.124394+00:00 app[api]: Initial release by user am3ransari#gmail.com
2020-05-18T00:31:45.124394+00:00 app[api]: Release v1 created by user am3ransari#gmail.com
2020-05-18T00:31:45.576958+00:00 app[api]: Enable Logplex by user am3ransari#gmail.com
2020-05-18T00:31:45.576958+00:00 app[api]: Release v2 created by user am3ransari#gmail.com
2020-05-18T00:32:22.000000+00:00 app[api]: Build started by user am3ransari#gmail.com
2020-05-18T00:32:49.104161+00:00 app[api]: Deploy 1d131d7d by user am3ransari#gmail.com
2020-05-18T00:32:49.104161+00:00 app[api]: Release v3 created by user am3ransari#gmail.com
2020-05-18T00:32:49.128088+00:00 app[api]: Scaled to web#1:Free by user am3ransari#gmail.com
2020-05-18T00:32:55.009626+00:00 app[web.1]:
2020-05-18T00:32:55.009659+00:00 app[web.1]: > amer-api#1.0.0 start /app
2020-05-18T00:32:55.009660+00:00 app[web.1]: > node app.js
2020-05-18T00:32:55.009660+00:00 app[web.1]:
2020-05-18T00:32:55.349511+00:00 app[web.1]: listening on port 3000
2020-05-18T00:32:58.000000+00:00 app[api]: Build succeeded
2020-05-18T00:33:53.578640+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-18T00:33:53.583026+00:00 heroku[web.1]: State changed from crashed to starting
2020-05-18T00:34:01.570180+00:00 app[web.1]:
2020-05-18T00:34:01.570202+00:00 app[web.1]: > amer-api#1.0.0 start /app
2020-05-18T00:34:01.570202+00:00 app[web.1]: > node app.js
2020-05-18T00:34:01.570203+00:00 app[web.1]:
2020-05-18T00:34:02.125267+00:00 app[web.1]: listening on port 3000
2020-05-18T00:34:48.531089+00:00 heroku[router]: at=error code=H20 desc="App boot timeout" method=GET path="/" host=serene-shelf-12092.herokuapp.com request_id=82d5065f-fcd6-4e9c-8836-7ebb3a075658 fwd="92.99.250.143" dyno= connect= service= status=503 bytes= protocol=https
2020-05-18T00:34:59.080489+00:00 heroku[web.1]: State changed from starting to crashed
2020-05-18T00:35:00.097273+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=serene-shelf-12092.herokuapp.com request_id=aa2cac26-b857-48aa-a2eb-72f9c9abea04 fwd="92.99.250.143" dyno= connect= service= status=503 bytes= protocol=https
Anyone can help me?

Answer 1

please add path into your dependencies:
npm install path --save
secondly change your app.js last line to this
const port = process.env.PORT || 3000;
app.listen(port, () => console.log(`listening on:`, port));