Function json_with_comments::ser::to_file_pretty

pub fn to_file_pretty(value: impl Serialize, file: &mut File) -> Result<()>

Serialize struct S as a pretty formatted JSON with comments text of the given file. If you want to serialize as minified JSONC text, use to_file instead.

Examples

use serde::Serialize;
#[derive(Serialize)]
struct Product {
    name: String,
    price: u32,
}
let path = std::path::Path::new("tests/data/product_pretty.jsonc");
if path.exists() {
    std::fs::remove_file(path).unwrap();
}
let mut file = std::fs::File::create(path).unwrap();
let product = Product { name: "candy".to_string(), price: 100 };
json_with_comments::to_file_pretty(product, &mut file).unwrap();
let pretty = r#"{
  "name": "candy",
  "price": 100,
}"#;
assert_eq!(std::fs::read_to_string(path).unwrap(), pretty);