Reading and writing array elements

[kamocio]

Say I am given a JSON:

{
"name": "John Doe",
"meals":
[
{
"breakfast": "omlet at 8AM"
},
{
"lunch": "salad at 12"
}
]
}

And its loaded into below object(does not matter how):

nlohmann::json someJson;

Now I'd like to load the "meals" structure into some STL container.

std::? = someJson["meals"];

I also need to be able to make some changes to the values and write it back.

someJson["meals"] = ?;

How would that look like? Struggling to figure out the type(s) to use here.

[nickaein]

The library already provides STL-like access APIs for reading/writing JSON values. Do they cover your requirements?

[kamocio]

Thanks, that's what I've been trying to figure out. I'm not able to "fit" any STL container to the JSON format I listed above.

Finding an STL container (even if its a nested, complicated one) that would allow reading/writing of "meals" element is what this question is about.

[kamocio]

It appears that the STL structure would be:
vector<map<string, string>>

I was able to make it work like that, though the c++ code of adding/searching elements is quite ugly (nothing to do with the library, just a weird JSON doc format). I'll close this.

[nickaein]

It appears that the STL structure would be:
vector<map<string, string>>

The underlying data type is std::map<std::string, basic_json>> for JSON objects and std::vector<basic_json> for JSON arrays, by default. (More info here and here).

though the c++ code of adding/searching elements is quite ugly (nothing to do with the library, just a weird JSON doc format). I'll close this.

Correct. JSON schema has a great impact on ease of implementation . I've written a sample demo based on your schema: https://wandbox.org/permlink/iVUmUQV1GDtXzr6Q

You can find more info at README page and indeed the documentations.

[kamocio]

Thanks!