DataFrame VS json_test_data

I have worked on C++ DataFrame for the past 5+ years in my spare times. It is comparable to Pandas or R data.frame, although it includes a lot more functionality.

https://github.com/nlohmann/json

I used this for JSON last time I wrote any C++ a few years ago and it still seems popular. It seemed sane enough to me.

On the other hand, I'd like to bring in the json library of my choice, e.g. https://github.com/nlohmann/json or https://github.com/danielaparker/jsoncons. So I'd prefer the web server library provides as little as possible in the way of Json support, and certainly doesn't get in the way of using my library of choice. Similarly, I'd like to use my choice of automatic object serialization.

I find openMVG very decent, FTXUI might be a good one and nlohmann's json library is also pretty nice. I don't really know of any project that strictly adheres to the core guidelines, except maybe for some of Jason Turner's (sample) projects.

JSON for Modern C++. Intuitive syntax. Trivial integration. Serious testing. Memory efficiency. Speed.

Please provide us an example of this one minute process you talk about for an example project of opening a JSON file, writing to it and closing it with a library like `nlohmann`s.

I worked on my partner’s static site generator, rwar, to implement this feature and she worked on my static site generator – palpatine. I was easily able to do this in rwar which is written in Python. However, I realized that this feature was much harder to implement on palpatine which is written in C++. Samina reached out multiple times seeking help for the broken Cmake configurations and for helping in integrating the nlohmann/json library.

For this lab, I worked on Tong's SSG created with CPP. Because I've worked with this code previously it was easily navigatable and most of the code was easy to add. The difficulty I had was adding JSON to CPP. CPP has no native JSON reading so I can't just read the file like a JSON file unless I make a custom class or use a library. A custom class in CPP dedicated to reading JSON would probably be the size of another project so I decided that I want to use an already open source library. I did some research and found a couple of the most used ones and asked Tong if there was one he preferred because at the end of the day it was his code so his decision was the most important one. He said he liked nlohmann/json because it had the most forks. I looked into how to implement it inside of his code and saw I only needed to include the HPP file inside of the code.

Libraries like nlohmann's json, cpr, fmt are prime examples of what I'm seeking. Any suggestions?

Watch here Codacy CEO and co-founder Jaime Jorge in an exclusive live talk about code quality in open source, with Neils Lohmann, founder of the JSON for modern C++ on GitHub.