Fermyon has released Spin 3.0, a major update to its open source developer tool for building serverless WebAssembly applications. The new release intr

Spin 3.0 supports polyglot development using Wasm components

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2024-11-20 08:30:06

Fermyon has released Spin 3.0, a major update to its open source developer tool for building serverless WebAssembly applications. The new release introduces polyglot programming to ease development.

The update to Fermyon’s Spin framework was introduced November 11. Installation instructions can be found on developer.fermyon.com.

Spin 3.0 introduces a workflow for polyglot programming that leverages component dependencies. This functionality is intended to make it seamless to perform tasks such as writing a library for a compute-intensive task in Rust and using it as a dependency in a JavaScript application. Component dependencies can be stored, discovered, and fetched from OCI registries, giving developers an experience akin to npm, NuGet, or crates.io but for Wasm, Fermyon said.

Spin 3.0 also includes an experimental flag, spin up --component-id, that lets developers specify which components to run from a Spin application, and it features deeper integration with WASI (WebAssembly System Interface) standards Spin 3.0, bringing support for the WASI Key-Value and WASI Config APIs. This support is a step toward bringing into Spin WASI cloud core, a WASI proposal for standardizing a set of APIs that applications can use to interact with a common set of cloud services.