WikiLerni/server.js

48 lines
1.1 KiB
JavaScript

const http = require("http");
const app = require("./app");
const normalizePort = val =>
{
const port = parseInt(val, 10);
if (isNaN(port))
return val;
if (port >= 0)
return port;
return false;
};
const port = normalizePort(process.env.PORT || "3000");
app.set("port", port);
const errorHandler = error =>
{
if (error.syscall !== "listen")
throw error;
const address = server.address();
const bind = typeof address === "string" ? "pipe " + address : "port: " + port;
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;
}
};
const server = http.createServer(app);
server.on("error", errorHandler);
server.on("listening", () =>
{
const address = server.address();
const bind = typeof address === "string" ? "pipe " + address : "port " + port;
console.log("Listening on " + bind);
});
server.listen(port);