How to create file extension json

help
1

Hello everyone
I need help for create file .JSON extension in rust, which function i can use or what practice good i can use.
Thank you so much

2

It's not clear to me what you need. Do you have some data that you want to store to disk formatted as JSON?

3

Use Path::with_extension:

use std::path::PathBuf;

fn main() {
    let path: PathBuf = "/foo/bar".into();
    let json = path.with_extension("json");
    dbg!(json);
}
4

I want store data in file .JSON

5

Thank you very much, me helped with solution