Oat++ VS Crow

Oat++(OatPP) is a lightweight C++ Web framework. Out of the box, it provides REST API with built-in JSON serialization/deserialization features, which could be interfaced with your DTOs.

mkdir temp && cd temp git clone https://github.com/oatpp/oatpp.git

I looked at oatpp and drogon, which are both great, but feel too high-level for my purposes. I tried drogon and got something working, but it feels like too much for my requirements, as in particular I'd like to slot in my choice of Json and message-body handling. C.f. the simple approach in Crow, which I easily understand and build on.

With the right libraries, C++ could be a good fit for applications that want to expose a fast web API to things that need lots of compute (simulators, for instance) or I/O (interactive editing of large datasets). Projects like Oat++ and Crow give me hope that we might see such an ecosystem develop.

Lots of other options have been mentioned, but I'll throw Oat++ into the mix. I used it for this purpose and it was reasonably painless.

https://github.com/oatpp/oatpp +WASM ;)

cd "some/temp/path/for/repositories" git clone https://github.com/oatpp/oatpp.git cd oatpp mkdir build && cd build cmake .. (sudo) make install

Maybe use something like https://oatpp.io to create a REST API: C++ in the backend with this library to create a REST server, and the JavaScript/TypeScript frontend to ask for the information.

I've used OATPP ( https://github.com/oatpp/oatpp ) which worked nicely for setting up simple rest interfaces. Supports things like swagger & websockets out of the box. It's also on Conan which is nice if you use cmake. I can't speak to it's performance but it has about a 1mb binary size footprint.

I'm investigating using C++ to build a REST server, and would love to know of people's experiences with Crow-- or whether they would recommend something else as a "medium-level" abstraction C++ web server. As background, I started off experimenting with Python/FastAPI, which is great, but there is too much friction to translate from pybind11-exported C++ objects to the format that FastAPI expects, and, of course, there are inherent performance limitations using Python, which could impact scaling up if the project were to be successful.

How about Crow?

https://github.com/CrowCpp/Crow is super easy to use

I recommend Crow, it's a web framework that supports HTTP and Websockets. It's a bit larger than being only there to just let you compose or decode a packet. But I'm pretty sure everything you mentioned is there already :)

It's also very useful to get to grips with using some popular libraries. Some might be ones that you'll find yourself using everywhere (e.g. fmt, spdlog, catch2), and some that have more specific usage, but are good to try out and explore what C++ can do in a ridiculously easy-to-use manner (e.g. crow, Dear ImGui). Make some toy projects that use some of these and you'll learn a lot.

I've been working on Crow for quite a while now, it's a pretty cool framework IMO.

Crow

You can also consider https://crowcpp.org/.