Babel Typescript Express

package.json

{
  "scripts": {
    "build": "babel ./src --out-dir build --extensions \".ts\"",
    "serve": "nodemon build/index.js",
    "type-check": "tsc --noEmit",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "dependencies": {
    "express": "^4.16.4"
  },
  "devDependencies": {
    "@babel/cli": "^7.2.3",
    "@babel/core": "^7.4.0",
    "@babel/node": "^7.2.2",
    "@babel/preset-env": "^7.4.2",
    "@babel/preset-typescript": "^7.3.3",
    "@types/express": "^4.16.1",
    "nodemon": "^1.18.10"
  }
}