close chidl processes when parent exits

packages/api/src/utility/childProcessChecker.js

@@ -0,0 +1,17 @@
+let counter = 0;
+ 
+function childProcessChecker() {
+  setInterval(() => {
+    try {
+      process.send({ msgtype: 'ping', counter: counter++ });
+    } catch (ex) {
+      // This will come once parent dies.
+      // One way can be to check for error code ERR_IPC_CHANNEL_CLOSED
+      //     and call process.exit()
+      console.log('parent died', ex.toString());
+      process.exit();
+    }
+  }, 1000);
+}
+
+module.exports = childProcessChecker;