On Sun, Apr 6, 2025 at 12:58 AM Nigel Stewart via Boost-users <boost-users@lists.boost.org> wrote:
1. Generate a C++17 struct from a JSON Schema, names, types, optionality, nested data, arrays. 2. Generate C++17 code for serialising to/from the natve C++17 struct. 3. Generate validation code that can emit informative messages about failed validation.
Not sure about your #3, but #1 and #2 are covered by some existing tools. Most from other ecosystems (JS/TS, Go, etc...) and many based on OpenAPI rather than Json schemas. Another team than mine uses Pistache for example, which generates C++ but uses nlohmann/json, and that's Linux only I think, because it does the "RPC part" also, using the Reactor pattern.
Seems to me this problem isn't specific to our application stack. Essentially we want to pass state between NodeJS and core C++ modules and have those interfaces evolve over time in a maintainable way.
Quite common indeed, except for the part of the backend using C++ :). Many more backends are in JS/TS, Go, Rust, etc... than C++ I'm afraid. Thus interop with the C++ world is poorly supported by most tools. --DD