# RustyFIT
[](https://docs.rs/rustyfit)
[](https://crates.io/crates/rustyfit)
[](https://crates.io/crates/rustyfit)
[](https://github.com/garmin/fit-sdk-tools/releases)
The `#![no_std]` Rust implementation of [The Flexible and Interoperable Data Transfer (FIT) Protocol](https://developer.garmin.com/fit) for decoding and encoding Garmin FIT files, supporting FIT Protocol V2.
This library is a rewrite of [FIT SDK for Go](https://github.com/muktihari/fit) and is designed to run on baremetal Rust.
## Current State
At the moment, I can't make this library heapless without complicating the code. I have no elegant solution for pure baremetal without dynamic memory allocation. That being said, this library is efficient enough to work on resource-constrained environments. I've tested it on [a `#![no_std]` program](./examples/no_std_decode) to decode a FIT file (statically embedded) and print some of its Session's fields to `stdout` with a custom global allocator having less than 50 KB heap size and it works like a charm.
## Usage
For [#![no_std]](https://docs.rust-embedded.org/book/intro/no-std.html), you need to provide [#[global_allocator]](https://doc.rust-lang.org/std/alloc/index.html#the-global_allocator-attribute) since this library requires allocation.
For [std](https://doc.rust-lang.org/std), you need to wrap `std::io`'s [Read](https://doc.rust-lang.org/std/io/trait.Read.html) or [Write](https://doc.rust-lang.org/std/io/trait.Write.html) with [embedded_io_adapters::std:FromStd](https://docs.rs/embedded-io-adapters/0.7.0/embedded_io_adapters/std/struct.FromStd.html).
Usage examples can be viewed on [**docs.rs**](https://docs.rs/rustyfit/latest/rustyfit).
## License
This library is licensed under the [BSD 3-Clause License](./LICENSE-BSD-3-CLAUSE).
The file `fitgen/Profile.xlsx` and all files under `rustyfit/tests/data/from_official_sdk/*` are licensed under the [FIT SDK License].
These files are used for code generation and testing only.
The FIT Protocol and FIT file format are proprietary to Garmin and are licensed under the [FIT Protocol License].
Use of this library may require compliance with the [FIT Protocol License].
This project is not affiliated with or endorsed by Garmin.
It is provided "as is" without warranty. Users are responsible for complying with all applicable licenses and laws.
[FIT Protocol License]: https://www.thisisant.com/developer/ant/licensing/flexible-and-interoperable-data-transfer-fit-protocol-license
[FIT SDK License]: ./LICENSE-FIT-SDK "https://developer.garmin.com/fit/download"