hasura graphql server event trigger 试用

hasura graphql server 是一个很不错的graphql 引擎，当前版本已经支持event triiger 了
使用此功能我们可以方便的集成webhook功能，实现灵活，稳定，快捷的消息驱动的应用

webhook 使用benthos ，简单例子参考 https://www.cnblogs.com/rongfengliang/p/9569811.html

一张参考图

环境搭建

使用docker-compose

• docker-compose 文件

version: '3.6'
services:
  postgres:
    image: postgres
    ports:
    - "5432:5432"
    environment:
    - "POSTGRES_PASSWORD:dalong"
    volumes:
    - ./db_data:/var/lib/postgresql/data
  benthos:
    image: jeffail/benthos
    volumes:
    - "./configs/webhook.yaml:/benthos.yaml"
    ports:
    - "4195:4195"
  graphql-engine:
    image: hasura/graphql-engine:v1.0.0-alpha16
    ports:
    - "8080:8080"
    depends_on:
    - "postgres"
    environment:
    - "POSTGRES_PASSWORD:dalong"
    command: >
      /bin/sh -c "
      graphql-engine --database-url postgres://postgres:dalong@postgres:5432/postgres serve --enable-console;
      "

• benthos webhook 配置
  webhook.yaml 文件

input:
  type: broker
  broker:
    inputs:
      - type: http_server
        http_server:
          path: /post/customer1
        processors:
          - type: text
            text:
              operator: prepend
              value: "Customer 1 received: "
      - type: http_server
        http_server:
          path: /post/customer2
        processors:
          - type: text
            text:
              operator: prepend
              value: "Customer 2 received: "
      - type: http_server
        http_server:
          path: /post/customer3
        processors:
          - type: text
            text:
              operator: prepend
              value: "Customer 3 received: "
output:
  type: stdout

启动&&运行

• 启动graphql server&& benthos stream webhook

docker-compose up -d

• 效果
  
  

测试event trigger

• 添加基本数据
  
• 添加evnet triiger

  具体webhook 地址参考自己电脑ip,我使用docker-compose 的service

• 添加数据测试
  
  

说明

类似的支持框架有prisma 都是挺不错的，但是hasura graphql 看起来潜力是无限的，只是在crud 这方便如果能扩展到不止pg 就更好了。

参考资料

https://www.cnblogs.com/rongfengliang/p/9569811.html
https://hasura.io/
https://github.com/Jeffail/benthos/tree/master/resources/docker/streams
https://github.com/rongfengliang/hasura-graphql-event-benthos