schema-dts

Typed JSON-LD for TypeScript developers, published by Google. It supplies TypeScript types for the whole Schema.org vocabulary, so markup is checked as you write it. You can merge multiple concrete types, implement schema types in a class, work with graphs and IDs, and rely on input and output constraints. Guidance warns that when JSON-LD is placed in a script tag, characters that could break out of the tag should be escaped to prevent XSS, and an examples file shows integration with React, Next.js and Astro. A typings generator is included for building the types. Apache-2.0 licensed and free to use.