AWS SDK for JavaScript to Rust (Rusoto) Converter

How to convert AWS SDK JavaScript code to Rust

1. Add your codePaste it into the AWS SDK (JS/TS) editor, drag in a file, or keep the sample to see how it works.
2. Convert to RustClick the button or press Ctrl + Enter. The result streams into the right-hand editor.
3. Review and use itCopy or download the result, then test it before you rely on it. AI output is a strong first draft, not a guarantee.

How JavaScript AWS SDK code maps to Rusoto

Rusoto gives each AWS service its own crate, such as rusoto_s3 and rusoto_sqs. You create a client for a region, like S3Client::new(Region::EuWest1), and call methods that take a request struct. A JavaScript parameter object such as { Bucket, Prefix } becomes ListObjectsV2Request { bucket, prefix: Some(...), ..Default::default() }, with snake_case field names and Option for optional values.

Every call is async and returns a Result, so the converted code runs inside a Tokio runtime and uses ? or match where the JavaScript used try/catch. Response fields are Options too, so expect unwrap_or_default() or if let Some(...) wherever the JavaScript read a property directly.

Rusoto is in maintenance mode: its maintainers only review dependency updates and small fixes. The official AWS SDK for Rust is generally available and is the better choice for new projects. Its fluent builders (client.list_objects_v2().bucket(b).send().await) differ from Rusoto's request structs, but the service calls and data you work with are the same.

Tips for better results

• Add the right crates. You need rusoto_core plus one crate per service in the output, and tokio for the async runtime, with versions that match each other.
• Look at every unwrap(). Converted code sometimes unwraps optional response fields. Replace them with proper handling before running it against real data.
• Set the region explicitly. JavaScript clients often pick up the region from the environment. In Rusoto, pass it to the client constructor, or use Region::default(), which reads the environment.
• Keep inputs small. One function at a time converts more reliably into Rust's stricter types than a whole module.
• Serialize explicitly. JSON.stringify calls become serde_json::to_string, which needs the serde and serde_json crates and derived types.

Frequently asked questions