DAW JSON Link v3, a JSON serialization/deserialization library, is released

• daw_json_link

  21 424 8.6 C++

  Fast, convenient JSON serialization and parsing in C++

So DAW JSON Link does have a DOM view, however it does not have a owning view. The json_value(even supports JSON Path in a limited form) type and json_raw mappings can help here. But there is no hard line between parsing view the json_value and the mappings to concrete data structures. One can mix and match.

• json

  93 40,148 7.6 C++

  JSON for Modern C++

It's a header-only library, but it's not consisting of a single header file and also relies on some dependencies. This is not really an issue for me but some people might prefer things like nlohmann-json for this reason I guess.

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• daw_json_link_describe

  2 4 1.8 C++

  Library that allows JSON Link to serialize types mapped by boost.describe

In this regard, I really like how daw_json_link works: it directly converts the JSON string into/from your custom C++ data type, without needing to have an intermediate DOM representation (but you can do so as well if you really want). The interface for defining the JSON serialization/deserialization for your data type is non-intrusive, which is another plus point. Due to lack of reflection in C++ it still requires some boilerplate, but personally I think it is better than other options I tried in terms of convenience. Furthermore, it is possible to reduce this amount of boilerplate into minimum with the aid of Boost.Describe.

• RapidJSON

  15 13,842 6.1 C++

  A fast JSON parser/generator for C++ with both SAX/DOM style API

  

It seems not super widely used compared to other famous libraries like RapidJSON, nlohmann-json, or simdjson. But it seems the author is very active in developing this project which can mitigate this "lack of community" issue.

• simdjson

  65 18,362 9.2 C++

  Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

  

It seems not super widely used compared to other famous libraries like RapidJSON, nlohmann-json, or simdjson. But it seems the author is very active in developing this project which can mitigate this "lack of community" issue.

• spdlog

  44 22,172 8.9 C++

  Fast C++ logging library.

Not sure what the above is but you should check out spdlog. It's pretty great to use.

• cpr

  22 6,137 8.1 C++

  C++ Requests: Curl for People, a spiritual port of Python Requests.

  

I like https://github.com/nlohmann/json as a cpp json library. I combine it with https://github.com/libcpr/cpr for jsonrpc. Also, I agree spdlog is great.

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• jsonrpc

  1 0 3.5 C++

  Generic JSON RPC server library (by beached)

But it's still being fleshed out JSON RPC

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