IDE (vscode) support for using nlohmann::json as first-class datatype with json schema

[HellGL]

Hi,
I would like to use nlohmann::json as first-class data type in my software at least for the data that I read on the command line and from various (json) input files. As an engineer I prefer the comfort of an IDE (i.e. vscode) over vi or nedit (that my programmer colleagues use) especially because it offers code completion for member variables of classes and structures. Recently I got to know JSON Schema which is extremely helpful if you need to develop json based data exchange interfaces and keep track of changes in a group of developers. vscode has a build-in support for JSON Schema which supports you in writing json documents: you can specify a schema file that should be used when writing a json file and vscode offers a dropdown list for keys, checks the type of values and helps you editing arrays or enums.

Does anybody know if this kind of support is also available for writing C++ code using nlohmann::json maybe through the help of a certain plugin? Or is anybody able and willing to implement or help implement a plugin to do something like that? Or am I the only person who would like to needs support using nlohmann::json and I am on my own here?

Please comment.

Cheers,
HellG

[nlohmann]

For JSON Schema, see https://github.com/pboettch/json-schema-validator.

[HellGL]

I am aware of that (not just because I did a search before starting the discussion 😄), but this does only validate my json while running my code, not while actually coding. I would like to have support in my IDE helping me e.g. when using configuration variables from a large json configuration file. After parsing the file I can check the parsed content against a pre-defined schema, but when I access the data in my code I would like to get support from the IDE to avoid typos or extensive typing of keys. I know, github copilot can do that, but e.g. does not give a drop-down-list of possible keys.

[nlohmann]

Oh, sorry, then I have no idea.