ts-proto

What ts-proto is

ts-proto is an open-source TypeScript code generator for Protocol Buffers. It turns .proto files into TypeScript interfaces and message methods for encoding, decoding, and conversion to and from JSON. Its output aims for an idiomatic TypeScript style and favors interfaces over classes where possible. It maps Protobuf well-known types, including wrapper and Struct types, to native TypeScript or JSON types. For services, it generates types and client implementations for Twirp, grpc-web, grpc-js, and NestJS. Twirp clients can batch matching individual RPC calls when using the documented batching convention. The project is RPC-framework agnostic: it generates code for use with RPC frameworks rather than providing one itself. Installation uses npm, and the tool runs as a protoc plugin. The README also documents Buf integration, including an official plugin in the Buf Registry, and use through the protobuf-gradle-plugin. ts-proto supports compile-time generation from .proto files, but not runtime reflection or loading dynamic .proto files. It does not support clients for Google Cloud APIs based on google.api.http. The repository identifies its license as Apache-2.0.