Heroku node.js deployment-CodePudding

This is my first time deploying a node.js server with heroku, apis fun fine on local, but now it seems like heroku wont recognise nodemon (sh: 1: nodemon: not found), it seemed like a popular problem in forums but i tried every comment and nothing .result

here is my package.json:

  {
  "name": "backend",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "type": "module",
  "scripts": {
    "start":"nodemon server",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "cors": "^2.8.5",
    "dotenv": "^16.0.1",
    "express": "^4.18.1",
    "mongodb": "^4.8.0"
  },
  "engines":{
    "node":"14.x"
  }
}

this is the index.js:

import app from "./server.js"
import mongodb from "mongodb"
import dotenv from "dotenv"
import jobsDAO from "./dao/jobsDAO.js"
dotenv.config()
const MongoClient = mongodb.MongoClient

const port = process.env.PORT || 5000

MongoClient.connect(
    process.env.JOBSFINDER_DB_URI,
    {
        wtimeoutMS: 2500,
    }
)
.catch(err => {
    console.error(err.stack)
    process.exit(1)
})
.then(async client =>{
    await jobsDAO.injectDB(client)
    app.listen(port, () => {
        console.log("listening on port",port)
    })
})

this is the server.js:

import express from "express"
import cors from "cors"
import jobs from "./api/jobs.route.js"

const app = express()

app.use(cors())
app.use(express.json())

app.use("/api/v1/jobs", jobs)
app.use("*",(req,res)=>res.status(404).json({ error: "Not Found"}))

export default app

2022-08-24T20:58:55.624084 00:00 heroku[web.1]: Starting process with command `npm start`
2022-08-24T20:58:57.160097 00:00 app[web.1]:
2022-08-24T20:58:57.160109 00:00 app[web.1]: > [email protected] start /app
2022-08-24T20:58:57.160109 00:00 app[web.1]: > nodemon server
2022-08-24T20:58:57.160109 00:00 app[web.1]:
2022-08-24T20:58:57.170277 00:00 app[web.1]: sh: 1: nodemon: not found
2022-08-24T20:58:57.174407 00:00 app[web.1]: npm ERR! code ELIFECYCLE
2022-08-24T20:58:57.174655 00:00 app[web.1]: npm ERR! syscall spawn
2022-08-24T20:58:57.174717 00:00 app[web.1]: npm ERR! file sh
2022-08-24T20:58:57.174792 00:00 app[web.1]: npm ERR! errno ENOENT
2022-08-24T20:58:57.177522 00:00 app[web.1]: npm ERR! [email protected] start: `nodemon server`
2022-08-24T20:58:57.177629 00:00 app[web.1]: npm ERR! spawn ENOENT
2022-08-24T20:58:57.177682 00:00 app[web.1]: npm ERR!
2022-08-24T20:58:57.177719 00:00 app[web.1]: npm ERR! Failed at the [email protected] start script.
2022-08-24T20:58:57.177754 00:00 app[web.1]: npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
2022-08-24T20:58:57.182613 00:00 app[web.1]:
2022-08-24T20:58:57.182689 00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2022-08-24T20:58:57.182729 00:00 app[web.1]: npm ERR!     /app/.npm/_logs/2022-08-24T20_58_57_178Z-debug.log
2022-08-24T20:58:57.299986 00:00 heroku[web.1]: Process exited with status 1

CodePudding user response：

nodemon is missing from your dependencies. Run npm install nodemon to add it to your package.json

CodePudding user response：

nodemon is missing from you dependencies and needs to be added using npm install nodemon -D (the -D is to save it to dev dependencies)

Nodemon is usually used for development environments not deployed apps.

it looks like you are starting your server in index.js not server.js

I would suggest the following

npm install nodemon -D
change your scripts to:

"scripts": { "start":"node index.js", "start:dev": "nodemon index.js" "test": "echo \"Error: no test specified\" && exit 1" },

To run the app locally you can use:

npm run start:dev This will use nodemon and refresh the server when changes are saved.
npm start This will run the server (useful for production)