feat(cli): add default option for gracePeriodForClose to configure ht…

…tp/https close

packages/cli/generators/app/templates/index.js.ejs

@@ -8,6 +8,12 @@ if (require.main === module) {
     rest: {
       port: +(process.env.PORT || 3000),
       host: process.env.HOST,
+      // The `gracePeriodForClose` provides a graceful close for http/https
+      // servers with keep-alive clients. The default value is `Infinity`
+      // (don't force-close). If you want to immediately destroy all sockets
+      // upon stop, set its value to `0`.
+      // See https://www.npmjs.com/package/stoppable
+      gracePeriodForClose: 5000, // 5 seconds
       openApiSpec: {
         // useful when used with OpenAPI-to-GraphQL to locate your application
         setServersFromRequest: true,