Firebase Functions Example

package.json

{
  "name": "functions",
  "scripts": {
    "lint": "tslint --project tsconfig.json",
    "build": "tsc",
    "serve": "npm run build && firebase serve --only functions",
    "shell": "npm run build && firebase functions:shell",
    "start": "npm run shell",
    "deploy": "firebase deploy --only functions",
    "logs": "firebase functions:log"
  },
  "main": "lib/index.js",
  "engines": {
    "node": "8"
  },
  "dependencies": {
    "body-parser": "^1.18.3",
    "cors": "^2.8.5",
    "express": "^4.16.4",
    "firebase-admin": "~6.0.0",
    "firebase-functions": "^2.1.0"
  },
  "devDependencies": {
    "tslint": "~5.8.0",
    "typescript": "~2.8.3"
  },
  "private": true
}

tsconfig.json

{
  "compilerOptions": {
    "lib": [
      "es2017",
      "dom"
    ],
    "module": "commonjs",
    "noImplicitReturns": true,
    "outDir": "lib",
    "sourceMap": true,
    "target": "es2017",
    "typeRoots": [
      "./functions/node_modules/@types"
    ]
  },
  "compileOnSave": true,
  "experimentalAsyncFunctions": true,
  "include": [
    "src"
  ]
}