app.js

// Copyright 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/* eslint-disable object-curly-spacing */
/* eslint-disable quotes */
import express from "express";
import { pinoHttp, logger } from "./utils/logging.js";

const app = express();

// Use request-based logger for log correlation
app.use(pinoHttp);

app.use(express.static("client/build"));

// Main app route
app.get("/", async (req, res) => {
  // Use basic logger without HTTP request info
  logger.info({
    logField: "custom-entry",
    arbitraryField: "custom-entry",
  });

  // Use request-based logger with log correlation
  req.log.info("Child logger with trace Id."); // https://cloud.google.com/run/docs/logging#correlate-logs
  
  res.send("Site loaded.");
});

export default app;