Engine Plugins
Introduction
Hasura's engine plugins architecture allows you to integrate HTTP hooks at various stages of the API execution pipeline. This functionality enables you to embed custom logic that reacts to specific events, effectively extending the core capabilities of your API. These hooks can be triggered either before or after the execution of a query or mutation, providing a powerful mechanism to implement user-defined workflows and event-driven customizations.
Types of plugins
Pre-Parse plugins
Pre-parse plugins are executed at the very beginning of the execution pipeline. They allow you to insert custom logic before the query-parsing step occurs. This enables you to pre-process, or manipulate incoming queries, and modify the behavior of your API at an early stage.
Pre-Response plugins
Pre-response plugins are triggered at the final stage of the execution pipeline, after the query has been executed but before the response is sent to the client. These plugins allow you to execute logic based on the response such as calling third-party services before the client receives the response.
