ts-migrate-server

A package from Airbnb that contains the main migration runner for ts-migrate, a tool to assist migrating JavaScript codebases to TypeScript. It spawns a TypeScript server (TSServer) process and provides a standardized API for running migration plugins. Current stable version is 0.1.33. The tool is designed around Airbnb projects and is considered experimental for broader use. It requires TypeScript >4.0 and is part of the ts-migrate monorepo which also includes plugins and a CLI. Unlike simple codemods, ts-migrate-server leverages the TypeScript compiler API for more complex transformations.