Serialization Without Crates

JSON-Shaped Record

Escape Text Fields

A JSON-shaped string needs quotes around text fields and escaping before data is embedded.

Program

Play the program to choose a name and build a small JSON-shaped record with a fixed score.

json_like_record.rs 
fn main() {
    let name = ;
    let score = 7;
    let record = json_record(name, score);
    println!("{record}");
}

fn json_record(name: &str, score: i32) -> String {
    format!("{{\"name\":\"{}\",\"score\":{score}}}", escape_json(name))
}

fn escape_json(text: &str) -> String {
    text.replace('\\', "\\\\").replace('"', "\\\"")
}

fn main() {
    let name = ;
    let score = 7;
    let record = json_record(name, score);
    println!("{record}");
}

fn json_record(name: &str, score: i32) -> String {
    format!("{{\"name\":\"{}\",\"score\":{score}}}", escape_json(name))
}

fn escape_json(text: &str) -> String {
    text.replace('\\', "\\\\").replace('"', "\\\"")
}

fn main() {
    let name = ;
    let score = 7;
    let record = json_record(name, score);
    println!("{record}");
}

fn json_record(name: &str, score: i32) -> String {
    format!("{{\"name\":\"{}\",\"score\":{score}}}", escape_json(name))
}

fn escape_json(text: &str) -> String {
    text.replace('\\', "\\\\").replace('"', "\\\"")
}
JSON-shaped text The output follows a simple JSON object shape for this fixed record.
escaping `escape_json` protects text before embedding it between quotes.
crate boundary This example shows the concept without adding an external serialization crate.