Nest.JS deploy to Heroku

问题

I'm currently trying to deploy the basic starter template generated by the Nest.JS CLI (as of version 5.3.0) and seem to be getting a timeout on app startup. I'm wondering if anyone has managed to deploy to Heroku?

I'm not sure whether or not I need to include some kind of Procfile?

Also, there doesn't seem to be much info around deploying the Nest.JS

The Heroku logs when I try to deploy.

2018-10-16T06:52:09.602465+00:00 heroku[web.1]: Starting process with 
command `npm start`
2018-10-16T06:52:12.281532+00:00 app[web.1]: 
2018-10-16T06:52:12.281553+00:00 app[web.1]: > testy@0.0.0 start /app
2018-10-16T06:52:12.281555+00:00 app[web.1]: > ts-node -r tsconfig-        
paths/register src/main.ts
2018-10-16T06:52:12.281556+00:00 app[web.1]: 
2018-10-16T06:52:17.557991+00:00 app[web.1]: [Nest] 21   - 2018-10-16 
06:52:17   [NestFactory] Starting Nest application...
2018-10-16T06:52:17.578565+00:00 app[web.1]: [Nest] 21   - 2018-10-16 
06:52:17   [InstanceLoader] AppModule dependencies initialized +21ms
2018-10-16T06:52:17.626325+00:00 app[web.1]: [Nest] 21   - 2018-10-16 
06:52:17   [RoutesResolver] AppController {/}: +48ms
2018-10-16T06:52:17.633303+00:00 app[web.1]: [Nest] 21   - 2018-10-16 
06:52:17   [RouterExplorer] Mapped {/, GET} route +7ms
2018-10-16T06:52:17.636215+00:00 app[web.1]: [Nest] 21   - 2018-10-16 
06:52:17   [NestApplication] Nest application successfully started +3ms
2018-10-16T06:53:09.948188+00:00 app[web.1]: Error waiting for process 
to terminate: No child processes
2018-10-16T06:53:09.928492+00:00 heroku[web.1]: Error R10 (Boot 
timeout) -> Web process failed to bind to $PORT within 60 seconds of 
launch
2018-10-16T06:53:09.928658+00:00 heroku[web.1]: Stopping process with 
SIGKILL
2018-10-16T06:53:10.046177+00:00 heroku[web.1]: Process exited with 
status 22
2018-10-16T06:53:10.063329+00:00 heroku[web.1]: State changed from 
starting to crashed
2018-10-16T06:53:10.064950+00:00 heroku[web.1]: State changed from 
crashed to starting

my package.json file is below...

{
  "name": "testy",
  "version": "0.0.0",
  "description": "description",
  "author": "",
  "license": "MIT",
  "scripts": {
    "format": "prettier --write \"src/**/*.ts\"",
    "start": "ts-node -r tsconfig-paths/register src/main.ts",
    "start:dev": "nodemon",
    "start:debug": "nodemon --config nodemon-debug.json",
    "prestart:prod": "rimraf dist && tsc",
    "start:prod": "node dist/main.js",
    "start:hmr": "node dist/server",
    "lint": "tslint -p tsconfig.json -c tslint.json",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:e2e": "jest --config ./test/jest-e2e.json",
    "webpack": "webpack --config webpack.config.js"
  },
  "dependencies": {
    "@nestjs/common": "^5.1.0",
    "@nestjs/core": "^5.1.0",
    "reflect-metadata": "^0.1.12",
    "rxjs": "^6.2.2",
    "typescript": "^3.0.1"
  },
  "devDependencies": {
    "@nestjs/testing": "^5.1.0",
    "@types/express": "^4.16.0",
    "@types/jest": "^23.3.1",
    "@types/node": "^10.7.1",
    "@types/supertest": "^2.0.5",
    "jest": "^23.5.0",
    "nodemon": "^1.18.3",
    "prettier": "^1.14.2",
    "rimraf": "^2.6.2",
    "supertest": "^3.1.0",
    "ts-jest": "^23.1.3",
    "ts-loader": "^4.4.2",
    "ts-node": "^7.0.1",
    "tsconfig-paths": "^3.5.0",
    "tslint": "5.11.0",
    "webpack": "^4.16.5",
    "webpack-cli": "^3.1.0",
    "webpack-node-externals": "^1.7.2"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".spec.ts$",
    "transform": {
      "^.+\\.(t|j)s$": "ts-jest"
    },
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  }
}

If anyone has any experience in deploying this stack it'd be great to hear from you

回答1:

Heroku assigns you a port by default and adds the port to the environment variables (env), so you can set the port to a fixed number, you need to change your main file to:

import { NestFactory } from '@nestjs/core';
import { AppModule } from './app.module';

async function bootstrap() {
  const app = await NestFactory.create(AppModule);
  await app.listen(process.env.PORT || 3000);
}
bootstrap();

回答2:

I made the following changes to deploy a newly generated nest.js app:

main.ts - changed

await app.listen(3000);

await app.listen(process.env.PORT || 3000);

added Procfile contents: web: npm run start:prod
package.json - added heroku-postbuild script so my scripts look like:

  "scripts": {
    "build": "tsc -p tsconfig.build.json",
    "format": "prettier --write \"src/**/*.ts\"",
    "start": "ts-node -r tsconfig-paths/register src/main.ts",
    "start:dev": "nodemon",
    "start:debug": "nodemon --config nodemon-debug.json",
    "prestart:prod": "rimraf dist && npm run build",
    "start:prod": "node dist/main.js",
    "lint": "tslint -p tsconfig.json -c tslint.json",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json",
    "heroku-postbuild": "npm install --only=dev --no-shrinkwrap && npm run build"
  },

Currently running at: https://server-ts.herokuapp.com

回答3:

If you're using the free tier in Heroku, then you can only use npm start, while yours is start:prod. Try replacing "start:prod": "node dist/main.js" with "start": "node dist/main.js".

回答4:

After some hours... it's up and running!

1. package.json (pay attention on: scripts, @nestjs version, engines)

{
  "name": "nest",
  "version": "0.0.0",
  "description": "description",
  "author": "",
  "license": "MIT",
  "scripts": {
    "build": "tsc -p tsconfig.build.json",
    "format": "prettier --write \"src/**/*.ts\"",
    "start": "ts-node -r tsconfig-paths/register src/main.ts",
    "start:dev": "nodemon",
    "start:debug": "nodemon --config nodemon-debug.json",
    "start:prod": "node dist/main.js",
    "prestart:prod": "rimraf dist && npm run build",
    "postinstall": "npm run prestart:prod",
    "lint": "tslint -p tsconfig.json -c tslint.json",
    "test": "jest",
    "test:watch": "jest --watch",
    "test:cov": "jest --coverage",
    "test:debug": "node --inspect-brk -r tsconfig-paths/register -r ts-node/register node_modules/.bin/jest --runInBand",
    "test:e2e": "jest --config ./test/jest-e2e.json",
    "heroku-postbuild": "npm install --only=dev --no-shrinkwrap && npm run build"
  },
  "dependencies": {
    "@nestjs/common": "6.7.2",
    "@nestjs/core": "6.7.2",
    "@nestjs/jwt": "0.2.0",
    "@nestjs/mongoose": "5.2.2",
    "@nestjs/passport": "5.1.0",
    "@nestjs/platform-express": "6.7.2",
    "bcrypt": "3.0.2",
    "mongoose": "5.3.15",
    "passport": "0.4.0",
    "passport-jwt": "4.0.0",
    "reflect-metadata": "0.1.12",
    "rimraf": "2.6.2",
    "rxjs": "6.2.2",
    "typescript": "3.0.1"
  },
  "devDependencies": {
    "@nestjs/testing": "5.1.0",
    "@types/express": "4.16.0",
    "@types/jest": "23.3.1",
    "@types/node": "10.7.1",
    "@types/supertest": "2.0.5",
    "jest": "23.5.0",
    "nodemon": "1.18.3",
    "prettier": "1.14.2",
    "supertest": "3.1.0",
    "ts-jest": "23.1.3",
    "ts-loader": "4.4.2",
    "ts-node": "7.0.1",
    "tsconfig-paths": "3.5.0",
    "tslint": "5.11.0"
  },
  "jest": {
    "moduleFileExtensions": [
      "js",
      "json",
      "ts"
    ],
    "rootDir": "src",
    "testRegex": ".spec.ts$",
    "transform": {
      ".+\\.(t|j)s$": "ts-jest"
    },
    "coverageDirectory": "../coverage",
    "testEnvironment": "node"
  },
  "engines": {
    "node": "8.9.4"
  }
}

2. Procfile (location - same as package.json) Yes it's file without type. Can be created with Notepad.

web: npm run start:prod

3. Enable installing devDependencies (if needed)

heroku config:set NPM_CONFIG_PRODUCTION=false

来源：https://stackoverflow.com/questions/52829683/nest-js-deploy-to-heroku

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node.js

heroku

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