Glue: Toolchain for generating OpenAPI specs (and a lot more codegen targets)

[guywaldman]

Hi all, I'm building Glue, a small open-source IDL/toolchain for defining models and interfaces once, then generating OpenAPI, Protobuf, JSON Schema, TypeScript, Python, Rust, and Go.
It has a CLI for generating code from a .glue file and a VS Code extension (with an LSP).
I am also prioritizing sane defaults and minimalism - Glue specs should be as non-verbose as possible.

You can play around with it on the website: https://www.gluelang.dev/
It has interactive Glue transpilation using the codegen module compiled into WASM.

I don't like to self-promote, but I feel that working with Glue specs has a lot of value for myself personally, and would love to get some feedback from folks!

I’m looking for feedback from people maintaining schema-first / contract-first API workflows:

• Is this useful as an upstream source for OpenAPI, or is it the wrong abstraction layer?
• What OpenAPI features would need to be supported before this is credible?
• Where would a tool like this fail in real API/codegen workflows?

Repo: https://github.com/guywaldman/glue
Docs/playground: https://gluelang.dev

Note: I want to stress that the angle is not to “replace OpenAPI”, but rather using OpenAPI as one output target when you want a smaller source-of-truth format upstream, especially one you want to reuse with other targets.

Cheers.