@sword-code-practice/sword-plugin-server/lib/index.mjs

sword框架内置在运行server上的插件

import { createServer } from 'http';
import net from 'net';
import { log } from '@sword-code-practice/sword-plugin-log';

const defaultServerConfig = {
  port: 3e3
};
const startServer = async (app, serverConfig = defaultServerConfig) => {
  let key;
  for (key in serverConfig) {
    if (!serverConfig[key]) {
      serverConfig[key] = defaultServerConfig[key];
    }
  }
  const start = () => {
    log.info(`HTTP\u670D\u52A1\u542F\u52A8\u4E2D...`);
    const server = createServer(app);
    try {
      server.listen(serverConfig.port);
      log.success(`\u7A0B\u5E8F\u8FD0\u884C\u5728${serverConfig.port}\u7AEF\u53E3\u4E0A`);
    } catch (error) {
      log.err(JSON.stringify(error));
    }
  };
  const tryUsePort = async () => {
    const used = await portUsed(serverConfig.port);
    if (used === false) {
      serverConfig.port && serverConfig.port++;
      return await tryUsePort();
    } else {
      return true;
    }
  };
  if (await tryUsePort()) {
    start();
  }
};
const portUsed = (port) => {
  return new Promise((resolve) => {
    const server = net.createServer().listen(port);
    server.on("listening", () => {
      server.close();
      resolve(port);
    });
    server.on("error", (err) => {
      if (err.code == "EADDRINUSE") {
        resolve(false);
      }
    });
  });
};
const useServer = () => {
  return {
    name: "server",
    server: {
      start: startServer
    }
  };
};

export { useServer };