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route-path-match

v1.1.0

Published

compile route path template, match route path params

Readme

route-path-match - 路由路径匹配

安装

npm i -D route-path-match
# or
pnpm add -D route-path-match

路径匹配示例

import { parsePathTpl, matchPathParams } from "route-path-match";
const pathMatcher = parsePathTpl("/:group/:id");
const params = matchPathParams(pathMatcher, "/items/aaa");
if (params) {
  console.log("path matched", params);
  // params -> { group: 'items', id: 'aaa' }
} else {
  console.log("path unmatch");
}

路径模板规则

  • 通配符:
    • 匿名通配符: 形似 * 与 ** 前者匹配除/之外的字符,后者匹配任意字符,可以通过 *<\d+> 的形式自定义正则
    • 具名通配符: 形似 :id 与 ::id 可捕获变量名,其含义和用法同匿名通配符,可以通过 :id<\d+> 的形式自定义正则
  • 变量名:只支持使用驼峰形式,形如 :groupId
  • 适配正则:
    • 继承正则: ( ) 与 ? 等3个字符为正则的含义及用法,即分组与可选
    • 自定义通配符正则: id<[0-9]+|all> 其中 < > 字符会被替换为 ( ) 其中包裹的内容会被识别为该变量的正则表达式。其中的反斜杠需要转义,如 \d+

路径模板示例

  • /assets/::filePath
  • /:group/:id
  • /:group/:id<[0-9]+>
  • /:group/:id<[0-9]+>(:extname<\.html|\.xml>)?
  • /:group/:id?
  • /:group(/:id)?
  • /:group<items|users|images>(/:id)?

路由匹配示例

import { ExpressRouter } from "route-path-match/server";
const notFound = async (req, res) => {
  res.end('not found')
}
const resolvePage = async (req, res) => {
  res.end('some page html')
}
const initDb = async (req, res) => {
  req.db = 'some db connection'
}

const routes = [
  {
    method: 'OPTIONS',
    path: '*',
    response: ''
  },
  {
    path: '/pages/1',
    handler: [ initDb, resolvePage ]
  },
  {
    path: *,
    handler: notFound
  }
];
const router = new ExpressRouter(routes);

import express from 'express'
const app = express()
const hookTasks = {
  onRoute: (route, req, res) => {},
  onError: (err, req, res) => { console.error(err) },
  onFinish: (req, res) => {},
  onStart: (req, res) => {},
  onEnd: (req, res) => {},
}
app.use((req, res) => router.handle(hookTasks, req, res))
app.listen(8080)