URLルーティング実装

2020-11-24-advent-calendar-2020-server-route-implementation.ts

import http from "http";
import url from "url";

async function route(pathname: string, req: any, res: any) {
  switch (pathname) {
    // TODO: api の reverse proxy
    case "/page1": {
      page1Action(req, res);
      break;
    }
    case "/page2": {
      page2Action(req, res);
      break;
    }
    default: {
      // TODO: 静的に一致しない場合はコンテンツをそのまま返す実装を入れておく
      break;
    }
  }
}

const server = createServer();

server.on("request", async (req, res) => {
  const { pathname } = url.parse(req.url);

  if (!pathname) throw new Error("Error! pathname is null.");
  await route(pathname, req, res);

  res.end();
});