# Rust SDK for Numaflow This SDK provides the interface for writing [User Defined Sources](https://numaflow.numaproj.io/user-guide/sources/user-defined-sources/), [User Defined Source Tranformers](https://numaflow.numaproj.io/user-guide/sources/transformer/), [UDFs](https://numaflow.numaproj.io/user-guide/user-defined-functions/user-defined-functions/) and [User Defined Sinks](https://numaflow.numaproj.io/user-guide/sinks/user-defined-sinks/) in [Rust](https://www.rust-lang.org/). > This rust crate is being actively developed and it supports > most of the features. You may use this crate but there might be > few minor changes in the upcoming releases. ## Examples You may find examples in the [examples folder](./examples).