# aws-sdk-neptune Amazon Neptune is a fast, reliable, fully-managed graph database service that makes it easy to build and run applications that work with highly connected datasets. The core of Amazon Neptune is a purpose-built, high-performance graph database engine optimized for storing billions of relationships and querying the graph with milliseconds latency. Amazon Neptune supports popular graph models Property Graph and W3C's RDF, and their respective query languages Apache TinkerPop Gremlin and SPARQL, allowing you to easily build queries that efficiently navigate highly connected datasets. Neptune powers graph use cases such as recommendation engines, fraud detection, knowledge graphs, drug discovery, and network security. This interface reference for Amazon Neptune contains documentation for a programming or command line interface you can use to manage Amazon Neptune. Note that Amazon Neptune is asynchronous, which means that some interfaces might require techniques such as polling or callback functions to determine when a command has been applied. In this reference, the parameter descriptions indicate whether a command is applied immediately, on the next instance reboot, or during the maintenance window. The reference structure is as follows, and we list following some related topics from the user guide. ## Getting Started > Examples are available for many services and operations, check out the > [examples folder in GitHub](https://github.com/awslabs/aws-sdk-rust/tree/main/examples). The SDK provides one crate per AWS service. You must add [Tokio](https://crates.io/crates/tokio) as a dependency within your Rust project to execute asynchronous code. To add `aws-sdk-neptune` to your project, add the following to your **Cargo.toml** file: ```toml [dependencies] aws-config = { version = "1.1.7", features = ["behavior-version-latest"] } aws-sdk-neptune = "1.35.0" tokio = { version = "1", features = ["full"] } ``` Then in code, a client can be created with the following: ```rust,no_run use aws_sdk_neptune as neptune; #[::tokio::main] async fn main() -> Result<(), neptune::Error> { let config = aws_config::load_from_env().await; let client = aws_sdk_neptune::Client::new(&config); // ... make some calls with the client Ok(()) } ``` See the [client documentation](https://docs.rs/aws-sdk-neptune/latest/aws_sdk_neptune/client/struct.Client.html) for information on what calls can be made, and the inputs and outputs for each of those calls. ## Using the SDK Until the SDK is released, we will be adding information about using the SDK to the [Developer Guide](https://docs.aws.amazon.com/sdk-for-rust/latest/dg/welcome.html). Feel free to suggest additional sections for the guide by opening an issue and describing what you are trying to do. ## Getting Help * [GitHub discussions](https://github.com/awslabs/aws-sdk-rust/discussions) - For ideas, RFCs & general questions * [GitHub issues](https://github.com/awslabs/aws-sdk-rust/issues/new/choose) - For bug reports & feature requests * [Generated Docs (latest version)](https://awslabs.github.io/aws-sdk-rust/) * [Usage examples](https://github.com/awslabs/aws-sdk-rust/tree/main/examples) ## License This project is licensed under the Apache-2.0 License.