chore: change using only express to serve app

functions/api/index.js

@@ -1,10 +1,14 @@
-const functions = require("firebase-functions");
 const express = require("express");
 const cors = require("cors");
 const cookieParser = require("cookie-parser");
 const dotenv = require("dotenv");
 const hpp = require("hpp");
 const helmet = require("helmet");
+const util = require("../lib/util");
+const admin = require("firebase-admin");
+const prodServiceAccount = require("../nadosunbae-server-firebase-adminsdk-lzgu9-7c653db78a");
+const devServiceAccount = require("../nadosunbae-server-dev-90ac3-firebase-adminsdk-r7b4s-10d004f02b");
+const logger = require("morgan");
 
 // use .env for security
 dotenv.config();
@@ -24,40 +28,50 @@ if (process.env.NODE_ENV === "production" || process.env.NODE_ENV === "developme
 }
 
 // parse requests to json
+app.use(logger("dev"));
 app.use(express.json());
 app.use(express.urlencoded({ extended: true }));
 app.use(cookieParser());
 
+// req logging
+const reqLogger = (req, res, next) => {
+  console.log(
+    "\n\n",
+    "[api]",
+    `[${req.method.toUpperCase()}]`,
+    req.originalUrl,
+    `[${req.method}] ${!!req.user ? `${req.user.id}` : ``} ${req.originalUrl}\n ${
+      !!req.query && `query: ${JSON.stringify(req.query)}`
+    } ${!!req.params && `params ${JSON.stringify(req.params)}`}`,
+  );
+
+  next();
+};
+
 // routing with routes directory
-app.use("/", require("./routes"));
+app.use("/api", reqLogger, require("./routes"));
 
 // path not found
 app.use("*", (req, res) => {
-  res.status(404).json({
-    status: 404,
-    success: false,
-    message: "잘못된 경로입니다.",
-  });
+  res.status(404).send(util.fail(404, "잘못된 경로입니다."));
+});
+
+// error handler
+app.use(function (err, req, res, next) {
+  // set locals, only providing error in development
+  res.locals.message = err.message;
+  res.locals.error = req.app.get("env") === "development" ? err : {};
+
+  // render the error page
+  res.status(err.status || 500);
+  res.render("error");
+});
+
+const serviceAccount =
+  process.env.NODE_ENV === "production" ? prodServiceAccount : devServiceAccount;
+
+admin.initializeApp({
+  credential: admin.credential.cert(serviceAccount),
 });
 
-// for firebase functions
-module.exports = functions
-  .runWith({
-    timeoutSeconds: 300, // 300 sec for processing request
-    memory: "512MB",
-  })
-  .region("asia-northeast3") // seoul
-  .https.onRequest(async (req, res) => {
-    // for debugging
-    console.log(
-      "\n\n",
-      "[api]",
-      `[${req.method.toUpperCase()}]`,
-      req.originalUrl,
-      `[${req.method}] ${!!req.user ? `${req.user.id}` : ``} ${req.originalUrl}\n ${
-        !!req.query && `query: ${JSON.stringify(req.query)}`
-      } ${!!req.params && `params ${JSON.stringify(req.params)}`}`,
-    );
-
-    return app(req, res);
-  });
+module.exports = app;

functions/db/db.js

@@ -1,4 +1,3 @@
-const functions = require("firebase-functions");
 const { Pool, Query } = require("pg");
 const dayjs = require("dayjs");
 const dotenv = require("dotenv");
@@ -49,14 +48,8 @@ const connect = async (req) => {
   const release = client.release;
 
   const releaseChecker = setTimeout(() => {
-    localMode
-      ? console.error("[ERROR] client connection이 15초 동안 릴리즈되지 않았습니다.", { callStack })
-      : functions.logger.error("[ERROR] client connection이 15초 동안 릴리즈되지 않았습니다.", {
-          callStack,
-        });
-    localMode
-      ? console.error(`마지막으로 실행된 쿼리문입니다. ${client.lastQuery}`)
-      : functions.logger.error(`마지막으로 실행된 쿼리문입니다. ${client.lastQuery}`);
+    console.error("[ERROR] client connection이 15초 동안 릴리즈되지 않았습니다.", { callStack });
+    console.error(`마지막으로 실행된 쿼리문입니다. ${client.lastQuery}`);
   }, 15 * 1000);
 
   client.query = (...args) => {

functions/index.js

@@ -1,22 +1,55 @@
-const admin = require("firebase-admin");
-const prodServiceAccount = require("./nadosunbae-server-firebase-adminsdk-lzgu9-7c653db78a");
-const devServiceAccount = require("./nadosunbae-server-dev-90ac3-firebase-adminsdk-r7b4s-10d004f02b");
-const dotenv = require("dotenv");
-
-dotenv.config();
-
-const serviceAccount =
-  process.env.NODE_ENV === "production" ? prodServiceAccount : devServiceAccount;
-
-let firebase;
-if (admin.apps.length === 0) {
-  firebase = admin.initializeApp({
-    credential: admin.credential.cert(serviceAccount),
-  });
-} else {
-  firebase = admin.app();
+const app = require("./api/index");
+const debug = require("debug")("express:server");
+const http = require("http");
+
+const port = normalizePort(process.env.PORT || "3000");
+app.set("port", port);
+
+const server = http.createServer(app);
+
+server.listen(port);
+server.on("error", onError);
+server.on("listening", onListening);
+
+function normalizePort(val) {
+  var port = parseInt(val, 10);
+
+  if (isNaN(port)) {
+    return val;
+  }
+
+  if (port >= 0) {
+    return port;
+  }
+
+  return false;
+}
+
+function onError(error) {
+  if (error.syscall !== "listen") {
+    throw error;
+  }
+
+  var bind = typeof port === "string" ? "Pipe " + port : "Port " + port;
+
+  // handle specific listen errors with friendly messages
+  switch (error.code) {
+    case "EACCES":
+      console.error(bind + " requires elevated privileges");
+      process.exit(1);
+      break;
+    case "EADDRINUSE":
+      console.error(bind + " is already in use");
+      process.exit(1);
+      break;
+    default:
+      throw error;
+  }
 }
 
-module.exports = {
-  api: require("./api"),
-};
+function onListening() {
+  var addr = server.address();
+  var bind = typeof addr === "string" ? "pipe " + addr : "port " + addr.port;
+  debug("Listening on " + bind);
+  console.log("Listening on " + bind);
+}