heroku[web.1]: State changed from up to crashed

Question

this is my command prompt:

2022-07-10T23:36:17.323791+00:00 heroku[web.1]: Process exited with status 1
2022-07-10T23:36:17.574484+00:00 heroku[web.1]: State changed from up to crashed
2022-07-10T23:36:17.578331+00:00 heroku[web.1]: State changed from crashed to starting
2022-07-10T23:36:19.862639+00:00 heroku[web.1]: Starting process with command `node server`
2022-07-10T23:36:21.568790+00:00 app[web.1]: Server running in development mode on port 52222
2022-07-10T23:36:22.148988+00:00 heroku[web.1]: State changed from starting to up
2022-07-10T23:36:51.593762+00:00 app[web.1]: MongooseServerSelectionError: connection <monitor> to 104.155.184.217:27017 closed
2022-07-10T23:36:51.593769+00:00 app[web.1]: at NativeConnection.Connection.openUri (/app/node_modules/mongoose/lib/connection.js:819:32)
2022-07-10T23:36:51.593771+00:00 app[web.1]: at /app/node_modules/mongoose/lib/index.js:378:10
2022-07-10T23:36:51.593773+00:00 app[web.1]: at /app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:32:5
2022-07-10T23:36:51.593773+00:00 app[web.1]: at new Promise (<anonymous>)
2022-07-10T23:36:51.593774+00:00 app[web.1]: at promiseOrCallback (/app/node_modules/mongoose/lib/helpers/promiseOrCallback.js:31:10)
2022-07-10T23:36:51.593774+00:00 app[web.1]: at Mongoose._promiseOrCallback (/app/node_modules/mongoose/lib/index.js:1223:10)
2022-07-10T23:36:51.593774+00:00 app[web.1]: at Mongoose.connect (/app/node_modules/mongoose/lib/index.js:377:20)
2022-07-10T23:36:51.593775+00:00 app[web.1]: at connectDB (/app/config/db.js:6:37)
2022-07-10T23:36:51.593775+00:00 app[web.1]: at Object.<anonymous> (/app/server.js:10:1)
2022-07-10T23:36:51.593775+00:00 app[web.1]: at Module._compile (node:internal/modules/cjs/loader:1105:14) {
2022-07-10T23:36:51.593776+00:00 app[web.1]: reason: TopologyDescription {
2022-07-10T23:36:51.593777+00:00 app[web.1]: type: 'ReplicaSetNoPrimary',
2022-07-10T23:36:51.593777+00:00 app[web.1]: servers: Map(3) {
2022-07-10T23:36:51.593778+00:00 app[web.1]: 'ac-eqnecmx-shard-00-00.uqxpgna.mongodb.net:27017' => [ServerDescription],
2022-07-10T23:36:51.593778+00:00 app[web.1]: 'ac-eqnecmx-shard-00-01.uqxpgna.mongodb.net:27017' => [ServerDescription],
2022-07-10T23:36:51.593778+00:00 app[web.1]: 'ac-eqnecmx-shard-00-02.uqxpgna.mongodb.net:27017' => [ServerDescription]
2022-07-10T23:36:51.593779+00:00 app[web.1]: },
2022-07-10T23:36:51.593779+00:00 app[web.1]: stale: false,
2022-07-10T23:36:51.593780+00:00 app[web.1]: compatible: true,
2022-07-10T23:36:51.593780+00:00 app[web.1]: heartbeatFrequencyMS: 10000,
2022-07-10T23:36:51.593780+00:00 app[web.1]: localThresholdMS: 15,
2022-07-10T23:36:51.593781+00:00 app[web.1]: setName: 'atlas-qcim0h-shard-0',
2022-07-10T23:36:51.593781+00:00 app[web.1]: logicalSessionTimeoutMinutes: undefined
2022-07-10T23:36:51.593781+00:00 app[web.1]: },
2022-07-10T23:36:51.593781+00:00 app[web.1]: code: undefined
2022-07-10T23:36:51.593781+00:00 app[web.1]: }
2022-07-10T23:36:51.889734+00:00 heroku[web.1]: Process exited with status 1
2022-07-10T23:36:51.942371+00:00 heroku[web.1]: State changed from up to crashed
2022-07-10T23:47:28.294565+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=pomoworko.herokuapp.com request_id=f70e80ad-c7f4-475d-b830-1b1cad21a5cc fwd="181.56.0.86" dyno= connect= service= status=503 bytes= protocol=https

this is my code:

Procfile:

web:node server

.gitignore:

node_modules/

server.js

const express = require('express')
const morgan = require('morgan')
const cors = require('cors')
const connectDB = require('./config/db')
const passport = require('passport')
const bodyParser = require('body-parser')
const routes = require('./routes/index')


connectDB()

const app = express()

if(process.env.NODE_ENV === 'development') {
    app.use(morgan('dev'))
}

app.use(cors())
app.use(bodyParser.urlencoded({extended: false}))
app.use(bodyParser.json())
app.use(routes)
app.use(passport.initialize())
require('./config/passport')(passport)

const PORT = process.env.PORT || 3000

app.listen(PORT, console.log(`Server running in ${process.env.NODE_ENV} mode on port ${PORT}`))

package.json:

{
  "name": "flutterauth",
  "version": "1.0.0",
  "description": "Authentication system for flutter apps",
  "main": "server.js",
  "scripts": {
    "start": "cross-env NODE_ENV=production node server",
    "dev": "cross-env NODE_ENV=development nodemon server"
  },
  "author": "pomoworko",
  "license": "MIT",
  "dependencies": {
    "bcrypt": "^5.0.1",
    "body-parser": "^1.20.0",
    "connect-mongo": "^4.6.0",
    "cors": "^2.8.5",
    "cross-env": "^7.0.3",
    "express": "^4.18.1",
    "jwt-simple": "^0.5.6",
    "mongoose": "^6.4.4",
    "morgan": "^1.10.0",
    "nodemon": "^2.0.19",
    "passport": "^0.6.0",
    "passport-jwt": "^4.0.0"
  }
}

For now, I got this:

If I write on the command prompt: "heroku restart", It works

And if I write on the command prompt: "heroku logs --tail", it shows me again, the first image, it doesn't work

How to fix this error

Thank you in advance

Answer 1

I'm assuming you are using mongodB atlas. You need to whitelist your IP address. To do that, head over to your network access tab, and include an IP address 0.0.0.0/0 . This is a wild card IP address that would allow all IP addresses with the correct credentials to access your DB.

As such:

Note: This whitelists all IP addresses. It's alright when testing. But when going into production, you might want to whitelist only IP addresses that should have access to the cluster...for security purposes.