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@all-in-js/koa-functions-api

v1.0.3

Published

基于 koa2 的函数式单路由接口开发方式

Downloads

6

Readme

koa-functions-api

基于 koa2 的函数式单路由接口开发方式

  • inspired by graphyql, 暂未实现 schema
  • 函数即接口服务,一个函数类似于 RESTFUL 中的一个资源,每个函数可组合、可复用
  • 提供一个接口和多个函数服务,前端通过一个接口请求各种函数服务
  • 支持前端合并请求,大大降低请求时间,防止接口依赖导致的响应时间过长的问题
  • 统一的异常监听和性能监控

服务端

  • 安装
yarn add @all-in-js/koa-functions-api
  • 使用中间件
import { functionsApiMiddleware } from '@all-in-js/koa-functions-api';

app.use(functionsApiMiddleware({
  // path: '/api/functions',
  // namespace: 'api',
  functions: [
    function helloWorld(cx, vars) {
      return 'hello, world.';
    }
  ],
  errorHandler(cx, err) {
    console.log(err);
    cx.body = err.message;
  }
}));
  • 参数配置

| 参数名 | 类型 | 说明 | 默认值 | | ----- | ----- | ----- | ----- | | path | string | 前端请求的接口 | /api/functions | | namespace | string | 函数的命名空间,前端请求函数时以此为前缀 | api | | functions | [(cx, vars?) => void] | 所有的函数服务 | [] | | errorHandler | (cx, err) => void | 异常处理函数 | - |

前端使用

固定接收前端传过来的两个参数:

  • $fns: 请求的函数服务,格式为 {namespace}/{fnName},组合模式下为数组即可
  • $vars: 对应函数服务需要的参数,组合模式下为数组,与 $fns 一一对应
fetch('/api/functions', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    $vars: {},
    $fns: 'api/helloWorld'
  })
});

直接使用 fetch 稍显麻烦?使用 fetch-functions-api 快速上手!

// TODO: 函数执行的信息统计;