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@ncf/core

v0.0.5

Published

nodejs concise framework

Downloads

4

Readme

这里面是架构核心。

  • serviceHub
  • serviceLoader 扫描 services 目录并且加载模块,热更新模块
    • 调用 config.js 中配置的 extension map,如 .sql 使用 osql-loader 或者 psql-loader, 没有注册的就认为是默认 js,取 exports.faas 作为服务,exports.xxx 作为该服务的配置
  • 如何实现服务端视图?
    • exports.faas 取视图用到的数据
    • exports.view 设置从哪个视图渲染
    • view 模块使用 view-loader 预编译变成函数
    • middleware 执行完 faas 后,将结果带入到配置的 view fn 结果返回
  • 如何区分 internal/对外
    • config 中配置哪些扫描,其中哪些对外
    • 可以整个目录配置成只对内,如 view 视图模板目录,只对内

config.js 范例

exports.loader = {
  sql: require('osql-loader'),
  md: require('md-loader'),
  json5: require('json5-loader'),
}
exports.loader = (ext, filename) => {
  if (ext === 'sql') {
    return require('osql-loader');
  }
}

配置结果参考

root
  dir1
    middlewares
    loaders 没设置自动取上级,设置可以取上级并修改,this.parent 可以取到上级
    subdirs
    services
    aliases

路由过程, path 切分段落 先看第一段,执行 middlewares, 找目录或者文件,没有找 alias,最终定位到服务。 执行服务的 faas 方法,等待 promise 解析或报错。 中间件可以看到 req, resp, ctx.state;然后做出改变。ctx 没有关于 http 的信息。

todo

  • 实现服务自动注册机制
  • 实现 loader 机制,根据文件名,文件路径转成服务模块,带 faas 方法的过程
  • 实现中间件机制,改变请求响应,设置和提取中间状态
  • 配置,服务和中间件还有loader都能够读取 dir/file中的配置,loader 只能读 dir 中的配置
  • http gateway 能挂接到核心 core.service(path, request) => Promise

从简单到复杂

  • 实现 dirConfig prototype 链
    • 然后在实现 module 到所属目录的 dirConfig prototype
  • 实现 jsLoader, configLoader,
    • 然后再实现 markdown,yaml,json5
    • osql,psql 等 loader
    • 再实现 DSL loader
  • 实现 watch add
    • 实现 watch change
    • 实现 watch del
  • config.middlewares [] 实现中间件机制