$ pnpm install

# development
$ pnpm run start

# watch mode
$ pnpm run start:dev

# production mode
$ pnpm run start:prod

# unit tests
$ pnpm run test

# e2e tests
$ pnpm run test:e2e

# test coverage
$ pnpm run test:cov

//index.js
const fastify = require('fastify')({ logger: true })

//声明一个最简单的路由
fastify.get('/', async (request, reply) => {
  return { hello: 'world' }
})

//启动服务
setImmediate(async () => {
    try {
        await fastify.listen(process.env.PORT||3000,'0.0.0.0')
    } catch (err) {
        fastify.log.error(err)
        process.exit(1)
    }
})



这样就在本地端口3000上启动了一个简单的服务。打眼望去，整个框架完全支持async/await,写法上基本与express相同，但是减少了很多配置，例如不用配置body的解析，fastify将根据返回值自动处理

fastify.route({
    method:'GET',
    url:'/123'
    async handler(req,reply){
    return "who's your daddy"
    }
})

   var cors = require('express-cross');
 
   app.use(cors(true, ["localhost", "google.com"], ["foo": "bar"]));

const fastify = require('fastify')({
    logger: true
})
const to = require('await-to-js').default
const request = require("request-promise");
const baseUrl = 'http://192.168.0.199:8080'
fastify.register(
    require('fastify-helmet'),
    // Example disables the `contentSecurityPolicy` middleware but keeps the rest.
    { contentSecurityPolicy: false }
)
fastify.register(
    require('fastify-cors'),
    {
        optionsSuccessStatus:204
    }
)

fastify.get('/', async (request, reply) => {
    return 'hello world'
})

fastify.route({
    method: ['GET','POST','PUT','DELETE'],
    url: '*',
    handler: async (req, reply) => {
        const options = {
            method: req.method,
            uri: baseUrl + req.url,
            json: true
        }
        if(req.query){
            options.qs = req.query
        }
        if(['POST','PUT'].includes(req.method)){
            options.body = req.body
        }
        return await request(options)
    }
})

setImmediate(async () => {
    try {
        await fastify.listen(process.env.PORT||3000,'0.0.0.0')
    } catch (err) {
        fastify.log.error(err)
        process.exit(1)
    }
})