Add Exit Scripts

src/exit.ts

@@ -0,0 +1,30 @@
+import chalk from "chalk";
+
+import { dbClient } from "./db";
+
+process.stdin.resume(); //so the program will not close instantly
+
+function exitHandler(
+  options: { cleanup?: boolean; exit?: boolean },
+  exitCode?: number
+) {
+  if (options.cleanup) {
+    console.log(chalk.blueBright("DB Closed Successfully"));
+    dbClient.close(true).catch(console.error);
+  }
+  if (exitCode || exitCode === 0) console.log("Exit Code:", exitCode);
+  if (options.exit) process.exit();
+}
+
+//do something when app is closing
+process.on("exit", exitHandler.bind(null, { cleanup: true }));
+
+//catches ctrl+c event
+process.on("SIGINT", exitHandler.bind(null, { exit: true }));
+
+// catches "kill pid" (for example: nodemon restart)
+process.on("SIGUSR1", exitHandler.bind(null, { exit: true }));
+process.on("SIGUSR2", exitHandler.bind(null, { exit: true }));
+
+//catches uncaught exceptions
+process.on("uncaughtException", exitHandler.bind(null, { exit: true }));

src/index.ts

@@ -1 +1,2 @@
 import "./db";
+import "./exit";