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index.js
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/
index.js
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// Recidiviz - a data platform for criminal justice reform
// Copyright (C) 2020 Recidiviz, Inc.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.
// =============================================================================
require("dotenv").config();
const http = require("http");
const { app, port } = require("./app");
const server = http.createServer(app);
/**
* Event listener for HTTP server "error" event.
*/
function onError(error) {
if (error.syscall !== "listen") {
throw error;
}
const bind = typeof port === "string" ? `Pipe ${port}` : `Port ${port}`;
// handle specific listen errors with friendly messages
switch (error.code) {
case "EACCES":
// eslint-disable-next-line no-console
console.error(`${bind} requires elevated privileges`);
process.exit(1);
break;
case "EADDRINUSE":
// eslint-disable-next-line no-console
console.error(`${bind} is already in use`);
process.exit(1);
break;
default:
throw error;
}
}
/**
* Event listener for HTTP server "listening" event.
*/
function onListening() {
const addr = server.address();
const bind = typeof addr === "string" ? `pipe ${addr}` : `port ${addr.port}`;
// eslint-disable-next-line no-console
console.log(`Listening on ${bind}`);
}
// eslint-disable-next-line no-console
server.listen(port, () => console.log(`Server listening on port ${port}`));
server.on("error", onError);
server.on("listening", onListening);