---
url: /core.md
---

* [Local Development](./development.md)
* [Unit Testing](./unittest.md)
* [Mock Helpers (@eggjs/mock / mm)](./mock.md)
* [Deployment](./deployment.md)
* [Logger](./logger.md)
* [HttpClient](./httpclient.md)
* [Cookie and Session](./cookie-and-session.md)
* [Multi-Process Model and Inter-Process Communication](./cluster-and-ipc.md)
* [View Template Rendering](./view.md)
* [Exception Handling](./error-handling.md)
* [Security](./security.md)
* [I18n Internationalization](./i18n.md)