Introduction

api-ts brings type safety to TypeScript HTTP servers by embracing the "parse, don't validate" philosophy. In addition to validating incoming HTTP requests against your API specification, api-ts also parses raw, less-structured data (like strings or JSON) into strongly-typed domain objects using the io-ts library. Once parsed, you can trust the HTTP request has passed both type and semantic validation, ensuring your business logic is never called with data it can't handle.