---
title: Interceptors
summary: Basic SDM interceptor concepts and how dp-kit participates in DP transform and event processing.
---

## Interceptors

`dp-kit` is an SDM extension package with built-in support for DP serialization and deserialization. When a device reports DP data, SDM listens to the `dpDataChange` event and executes interceptors from left to right, then passes the transformed result to components that consume `useProps`.

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  <a href="https://developer.tuya.com/cn/miniapp-codelabs/codelabs/sdm-transformer/index.html#0">
    Learn SDM interceptors and custom DP protocol parsing
  </a>
</Block>