Struct JsonObjectFormatter 

pub struct JsonObjectFormatter<'a, 'b, 'c> { /* private fields */ }

A formatter for JSON objects.

This struct is created by the JsonFormatter::object() method and provides methods for adding name-value pairs (members) to a JSON object with proper formatting, spacing, and indentation.

Examples

use nojson::json;

let output = json(|f| {
    f.object(|f| {
        f.member("name", "Alice")?;
        f.member("age", 30)
    })
});
assert_eq!(output.to_string(), r#"{"name":"Alice","age":30}"#);

// With pretty-printing
let pretty = json(|f| {
    f.set_indent_size(2);
    f.set_spacing(true);
    f.object(|f| {
        f.member("name", "Alice")?;
        f.member("age", 30)
    })
});

Implementations

impl JsonObjectFormatter<'_, '_, '_>

pub fn member<N, V>(&mut self, name: N, value: V) -> Result

where N: Display, V: DisplayJson,

Adds a single name-value pair (member) to the JSON object.

This method handles adding the appropriate comma separators between members and applies the current formatting rules like indentation and spacing.

Examples

use nojson::json;

let output = json(|f| {
    f.object(|f| {
        f.member("name", "Alice")?;
        f.member("age", 30)?;
        f.member("active", true)
    })
});

pub fn members<I, N, V>(&mut self, members: I) -> Result

where I: IntoIterator<Item = (N, V)>, N: Display, V: DisplayJson,

Adds multiple name-value pairs (members) to the JSON object from an iterator.

This is a convenience method that iterates over the provided collection and adds each item as a member using the JsonObjectFormatter::member() method.

Examples

use nojson::json;
use std::collections::BTreeMap;

let mut map = BTreeMap::new();
map.insert("name", "Alice");
map.insert("age", "30");

let output = json(|f| {
    f.object(|f| f.members(&map))
});