delete a json file in rust

To delete a JSON file in Rust, you first need to open a file handle to the file using the File struct from the std::fs module. Then, you can use the remove_file function to delete the file.

Here's an example code snippet that shows how to do this:

main.rs
use std::fs::File;
use std::io;
use std::io::ErrorKind;

fn delete_json_file(file_path: &str) -> io::Result<()> {
    match File::open(file_path) {
        Ok(_) => {
            std::fs::remove_file(file_path)?;
            Ok(())
        }
        Err(ref e) if e.kind() == ErrorKind::NotFound => {
            // file not found, return Ok(())
            Ok(())
        }
        Err(e) => Err(e),
    }
}
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In this example, the delete_json_file function takes a &str argument representing the path to the JSON file to be deleted.

The function first tries to open the file using File::open. If the file is found, it is deleted using std::fs::remove_file.

If the file is not found, the function returns Ok(()) because the file has already been deleted. If any other I/O error occurs, the function returns that error to the caller.