exress管理路由插件

express-plugin.js

function customRouter(originRouter, prefix) {
  let urlArr = [];
  let slice = [].slice;
  let methods = ['get', 'post', 'delete', 'put'];
  function array2ArrayLike(array) {
    let arrayLike = {
      length: 0
    }

    for(let i = 0; i < array.length; i++) {
      arrayLike[i] = array[i];
      arrayLike.length++;
    }
    return arrayLike;
  }

  for(let i = 0; i < methods.length; i++) {
    let originRouterMethod = originRouter[methods[i]];
    originRouter[methods[i]] = function() {
      let args = slice.call(arguments);
      let nameOrFn = args[1];
      let isName = false;
      let _args = [args[0]]; // for express router arguments
      if(typeof nameOrFn === 'string') {
        isName = true;
        _args.push(args.slice(2));
      }
      else {
        _args.push(args.slice(1));
      }

      urlArr.push({
        name: isName === true ? args[1] : '',
        url: `${(prefix || '') + args[0]}`
      });

      originRouterMethod.apply(originRouter, array2ArrayLike(_args));
    }
  }

  originRouter._routers = function() {
    return urlArr;
  }
}

效果