我正确地部署了'm trying to deploy my hapi api to heroku and it looks like it'，因为它显示了heroku日志中的 node bootstrap.js 并且没有使构建失败，但是当我加载应用程序时，我什么都没有得到默认的应用程序登陆页面，我怎样才能让heroku显示我的api路线？

package.json

{
  "name": "tricity",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node bootstrap.js",
    "heroku-postbuild": "node bootstrap.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@babel/runtime-corejs2": "^7.2.0",
    "axios": "^0.18.0",
    "concurrently": "^4.0.1",
    "hapi": "^17.5.4",
    "knex": "^0.15.2",
    "mysql": "^2.16.0",
    "serve": "^10.1.1"
  },
  "devDependencies": {
    "@babel/core": "^7.0.0",
    "@babel/plugin-proposal-class-properties": "^7.0.0",
    "@babel/plugin-proposal-decorators": "^7.0.0",
    "@babel/plugin-proposal-do-expressions": "^7.0.0",
    "@babel/plugin-proposal-export-default-from": "^7.0.0",
    "@babel/plugin-proposal-export-namespace-from": "^7.0.0",
    "@babel/plugin-proposal-function-bind": "^7.0.0",
    "@babel/plugin-proposal-function-sent": "^7.0.0",
    "@babel/plugin-proposal-json-strings": "^7.0.0",
    "@babel/plugin-proposal-logical-assignment-operators": "^7.0.0",
    "@babel/plugin-proposal-nullish-coalescing-operator": "^7.0.0",
    "@babel/plugin-proposal-numeric-separator": "^7.0.0",
    "@babel/plugin-proposal-object-rest-spread": "^7.0.0",
    "@babel/plugin-proposal-optional-chaining": "^7.0.0",
    "@babel/plugin-proposal-pipeline-operator": "^7.0.0",
    "@babel/plugin-proposal-throw-expressions": "^7.0.0",
    "@babel/plugin-syntax-dynamic-import": "^7.0.0",
    "@babel/plugin-syntax-import-meta": "^7.0.0",
    "@babel/plugin-transform-destructuring": "^7.0.0",
    "@babel/plugin-transform-runtime": "^7.2.0",
    "@babel/plugin-transform-spread": "^7.0.0",
    "@babel/preset-env": "^7.0.0",
    "@babel/preset-react": "^7.0.0",
    "@babel/register": "^7.0.0"
  }
}

bootstrap.js

require("@babel/register");
require( './src/server' );

server.js

import Hapi from 'hapi';
import Knex from './knex';

const server = new Hapi.Server({
  port: process.env.PORT || 3000,
  routes: { cors: true }
})

server.route({
  method: 'GET',
  path: '/',
  handler: (request, h) => {

      return 'Hello, world!';
  }
});


server.route({
  method: 'GET',
  path: '/categories',
  handler: function (request, h) {
     return  Knex( 'categories' ).select( '*' ).then( ( results ) => {
      return results
     })
  }
})
server.route({
  method: 'GET',
  path: '/sub-categories',
  handler: function (request, h) {
     return  Knex( 'subCategories' ).select( '*' ).then( ( results ) => {
      return results
     })
  }
})

server.route({
  method: 'GET',
  path: '/products',
  handler: function (request, h) {
     return  Knex( 'products' ).select( '*' ).then( ( results ) => {
      return results
     })
  }
})

    // In general, the Knex operation is like Knex('TABLE_NAME').where(...).chainable(...).then(...)


server.start((err) => {

  if (err) {
      throw err;
  }
  console.log(`Server running at: ${server.info.uri}`);
});
heroku hapi