请求时序图

单数据源

0 定义接口

query MyQuery($id: Int = 1) {
  todo_findUniqueTodo(where: {id: $id}) {
    completed
    createdAt
    id
    title
  }
}

1-2飞布启动时

9-10飞布关闭时

3 请求

curl 'http://localhost:9991/operations/Single?id=1'

4 findUniqueTodo

query MyQuery {
  findUniqueTodo(where: { id: 1 }) {
    completed
    createdAt
    id
    title
  }
}

5 SQL req

SELECT `completed`,`createdAt`,`id`,`title` FROM Todo WHERE id=1

6 SQL res

7 Query res(json)

{
  "data": {
    "findUniqueTodo": {
      "completed": false,
      "createdAt": "2022-12-31T16:00:01.000Z",
      "id": 1,
      "title": "This is Fireboom"
    }
  }
}

8 响应

{
    "todo_findUniqueTodo": {
        "completed": true,
        "createdAt": "2022-12-31T16:00:01.000Z",
        "id": 1,
        "title": "Hello world"
    }
}

多数据源(并行)

0 定义接口

query MyQuery($id: Int = 1) {
  todo_findUniqueTodo(where: { id: $id }) {
    completed
    createdAt
    id
    title
  }
  system_getAllRoles {
    code
    remark
  }
} 

6 getAllRoles req

curl 'http://localhost:9123/api/v1/role/all'

7 getAllRoles res

[
  { "code": "admin", "remark": "" },
  { "code": "user", "remark": "" }
]

8 响应

{
    "todo_findUniqueTodo": {
        "completed": true,
        "createdAt": "2022-12-31T16:00:01.000Z",
        "id": 1,
        "title": "Hello world"
    },
    "system_getAllRoles": [
        {
            "code": "admin",
            "remark": ""
        },
        {
            "code": "user",
            "remark": ""
        }
    ]
}

多数据源(串行-跨源关联)

最后,我们介绍下跨源特性,看下它的时序图。

跨源关联本质上是一种流程编排,将通常情况下并行的请求,改造成串行。

即先执行第一个接口,然后将第一个接口的返回结果作为入参传递给第二个接口。

详情请查看 关联查询

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