haproxy 2.0 dataplaneapi rest api 转为graphql

haproxy 2.0 dataplaneapi rest api 是比较全的，以下是一个简单的集成graphql，通过swagger-to-graphql
转换为graphql api 方便使用

环境准备

• 项目准备

yarn init -y

yarn add   express express-graphql graphql swagger-to-graphql

• 获取haproxy 2.0 dataplaneapi rest api swagger 定义

curl -s -X GET --user admin:dalong -H "Content-Type: application/json" http://localhost:5555/v1/specification > api.json

• 代码

const express = require('express');

const app = express();

const graphqlHTTP = require('express-graphql');

const graphQLSchema = require('swagger-to-graphql');

# 使用basic auth 输入配置好的用户以及密码

const proxyUrl = 'http://admin:dalong@localhost:5555/v1/';

const pathToSwaggerSchema = './api.json';

const customHeaders = {

    // Authorization: 'Basic YWRkOmJhc2ljQXV0aA=='

};

​

graphQLSchema(pathToSwaggerSchema, proxyUrl, customHeaders)

  .then(schema => {

    app.use(

      '/graphql',

      graphqlHTTP(() => {

        return {

          schema,

          graphiql: true,

        };

      }),

    );

​

    app.listen(3009, 'localhost', () => {

      console.info('http://localhost:3009/graphql');

    });

  })

  .catch(e => {

    console.log(e);

  });

• package.json 文件

{

  "name": "haproxy-dataplaneapi2graphql",

  "version": "1.0.0",

  "main": "app.js",

  "license": "MIT",

  "dependencies": {

    "express": "^4.17.1",

    "express-graphql": "^0.9.0",

    "graphql": "^14.5.4",

    "swagger-to-graphql": "^2.1.0"

  },

  "scripts": {

    "app": "node app.js"

  }

}

启动&&效果

• 预备
  首先需要有自己的haproxy 2.0 环境，同时配置了dataplaneapi，可以参考 https://github.com/rongfengliang/haproxy2.0-prometheus
• 启动

 

yarn app

• 效果

• 查询效果

说明

以上是一个简单的集成，通过graphql 的查询api，我们可以方便的操作haproxy

参考资料

https://github.com/yarax/swagger-to-graphql
https://www.npmjs.com/package/swagger-to-graphql
https://github.com/rongfengliang/haproxy2.0-prometheus
https://www.haproxy.com/documentation/hapee/1-9r1/configuration/dataplaneapi/
https://github.com/rongfengliang/haproxy-dataplaneapi2graphql/tree/master