Apollo Server开箱支持Apollo Engine,只是由于某些不可知的原因Apollo Engine的 API 在国内不可访问(我是真不知道为什么这个 API 会被墙的),所以只能另外想办法了.

Apollo Server本身有一个Apollo Tracing可以用于性能监控的扩展,通过扩展Apollo Tracing收集指标传输到分布式跟踪系统中.
另外有一个开源库Apollo Opentracing可以收集指标,传输到Jaeger或者Zipkin中,通过Jaeger或Zipkin实现性能监控和分析.

秉着方便,直接使用Apollo Opentracing.分布式跟踪系统使用Jaeger.

使用 Docker 搭建Jaeger

Jaeger 官方文档

在浏览器打开 http://localhost:16686 访问Jaeger

搭建Apollo Server

mkdir apollo-opentracing-democd apollo-opentracing-demoyarn init -yyarn add apollo-server
// index.jsconst { ApolloServer, gql } = require('apollo-server')const typeDefs = gql`  type Query {    hello: String  }`const resolvers = {  Query: {    hello: () => 'world',  },}const server = new ApolloServer({  typeDefs,  resolvers,})server.listen().then(({ url }) => {  console.log(`???? Server ready at ${url}`)})

运行

node index.js

集成Apollo Opentracing

yarn add apollo-opentracing jaeger-client
// tracer.jsconst { default: OpentracingExtension } = require('apollo-opentracing')const { initTracer } = require('jaeger-client')const config = {  serviceName: 'apollo-opentracing-demo',  sampler: {    type: 'const',    param: 1,  },  reporter: {    logSpans: true,    collectorEndpoint: 'http://localhost:14268/api/traces',  },}const options = {  logger: {    info(msg) {      console.log('INFO ', msg)    },    error(msg) {      console.log('ERROR', msg)    },  },}const tracer = initTracer(config, options)const opentracingExtension = () => {  console.log(123)  return new OpentracingExtension({    local: tracer,    server: tracer,  })}module.exports = {  opentracingExtension,}
const { opentracingExtension } = require('./tracer.js') // 引入扩展...const server = new ApolloServer({  typeDefs,  resolvers,  extensions: [opentracingExtension], // 使用扩展})...

使用

用浏览器打开 http://localhost:4000/

使用以下语句查询

query {  hello}

然后打开 http://localhost:16686

点击Find Traces就能看到刚刚查询的指标

参考

  • Performance Tracing for GraphQL with Apollo and it’s friends
  • Apollo Opentracing
  • Jaeger
  • jaeger-client-node