# LaunchDarkly Server-Side SDK for Rust
[](https://circleci.com/gh/launchdarkly/rust-server-sdk/tree/main)
The LaunchDarkly Server-Side SDK for Rust is designed primarily for use in multi-user systems such as web servers and applications. It follows the server-side LaunchDarkly model for multi-user contexts. It is not intended for use in desktop and embedded systems applications.
## LaunchDarkly overview
[LaunchDarkly](https://www.launchdarkly.com) is a feature management platform that serves over 100 billion feature flags daily to help teams build better software, faster. [Get started](https://docs.launchdarkly.com/docs/getting-started) using LaunchDarkly today!
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## Getting started
Refer to the [SDK documentation](https://docs.launchdarkly.com/sdk/server-side/rust#getting-started) for instructions on getting started with using the SDK.
This repository also contains several small [example implementations](./examples). You can run these with:
```sh
cargo run --example EXAMPLE_NAME
```
## Learn more
Check out our [documentation](https://docs.launchdarkly.com) for in-depth instructions on configuring and using LaunchDarkly. You can also head straight to the [complete reference guide for this SDK](https://docs.launchdarkly.com/sdk/server-side/rust).
## Testing
We run integration tests for all our SDKs using a centralized test harness. This approach gives us the ability to test for consistency across SDKs, as well as test networking behavior in a long-running application. These tests cover each method in the SDK, and verify that event sending, flag evaluation, stream reconnection, and other aspects of the SDK all behave correctly.
## Contributing
We encourage pull requests and other contributions from the community. Check out our [contributing guidelines](CONTRIBUTING.md) for instructions on how to contribute to this SDK.
## About LaunchDarkly
* LaunchDarkly is a continuous delivery platform that provides feature flags as a service and allows developers to iterate quickly and safely. We allow you to easily flag your features and manage them from the LaunchDarkly dashboard. With LaunchDarkly, you can:
* Roll out a new feature to a subset of your users (like a group of users who opt-in to a beta tester group), gathering feedback and bug reports from real-world use cases.
* Gradually roll out a feature to an increasing percentage of users, and track the effect that the feature has on key metrics (for instance, how likely is a user to complete a purchase if they have feature A versus feature B?).
* Turn off a feature that you realize is causing performance problems in production, without needing to re-deploy, or even restart the application with a changed configuration file.
* Grant access to certain features based on user attributes, like payment plan (eg: users on the ‘gold’ plan get access to more features than users in the ‘silver’ plan). Disable parts of your application to facilitate maintenance, without taking everything offline.
* LaunchDarkly provides feature flag SDKs for a wide variety of languages and technologies. Check out [our documentation](https://docs.launchdarkly.com/docs) for a complete list.
* Explore LaunchDarkly
* [launchdarkly.com](https://www.launchdarkly.com/ "LaunchDarkly Main Website") for more information
* [docs.launchdarkly.com](https://docs.launchdarkly.com/ "LaunchDarkly Documentation") for our documentation and SDK reference guides
* [apidocs.launchdarkly.com](https://apidocs.launchdarkly.com/ "LaunchDarkly API Documentation") for our API documentation
* [launchdarkly.com/blog](https://launchdarkly.com/blog/ "LaunchDarkly Blog Documentation") for the latest product updates