Enum Json 

pub enum Json {
    Null,
    Bool(bool),
    Number(f64),
    String(String),
    Array(Vec<Json>),
    Object(BTreeMap<String, Json>),
}

A parsed JSON value.

Object keys are kept in a BTreeMap so serialization is deterministic, which keeps test assertions and HTTP caching stable.

Variants

Null

Bool(bool)

Number(f64)

String(String)

Array(Vec<Json>)

Object(BTreeMap<String, Json>)

Implementations

impl Json

pub fn object<K: Into<String>, I: IntoIterator<Item = (K, Json)>>( pairs: I, ) -> Self

Build an object from pairs: Json::object([("id", 1.into())]).

Examples found in repository

examples/jsonsplit.rs (lines 10-16)

fn build() -> Json {
    Json::Array(
        (1..=100i64)
            .map(|id| {
                Json::object([
                    ("id", Json::from(id as f64)),
                    ("name", Json::from(format!("User {id}"))),
                    ("email", Json::from(format!("user{id}@example.test"))),
                    ("active", Json::Bool(id % 2 == 0)),
                    ("score", Json::from(id as f64 * 1.5)),
                ])
            })
            .collect(),
    )
}

pub fn get(&self, path: &str) -> Option<&Json>

Look up a nested value with a dotted path: value.get("user.name").

Numeric segments index into arrays, so items.0.id works too.

pub fn as_str(&self) -> Option<&str>

pub fn as_f64(&self) -> Option<f64>

pub fn as_i64(&self) -> Option<i64>

pub fn as_bool(&self) -> Option<bool>

pub fn as_array(&self) -> Option<&[Json]>

pub fn as_object(&self) -> Option<&BTreeMap<String, Json>>

pub fn is_null(&self) -> bool

pub fn to_string_pretty(&self) -> String

Serialize with two-space indentation, for config files and debug output.

pub fn parse(input: &str) -> Result<Json>

Parse JSON text.

Trait Implementations

impl Clone for Json

fn clone(&self) -> Json

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Json

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for Json

Compact JSON text. to_string() comes from here.

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&str> for Json

fn from(v: &str) -> Self

Converts to this type from the input type.

impl<T: Into<Json>> From<Option<T>> for Json

fn from(v: Option<T>) -> Self

Converts to this type from the input type.

impl From<String> for Json

fn from(v: String) -> Self

Converts to this type from the input type.

impl<T: Into<Json>> From<Vec<T>> for Json

fn from(v: Vec<T>) -> Self

Converts to this type from the input type.

impl From<bool> for Json

fn from(v: bool) -> Self

Converts to this type from the input type.

impl From<f32> for Json

fn from(v: f32) -> Self

Converts to this type from the input type.

impl From<f64> for Json

fn from(v: f64) -> Self

Converts to this type from the input type.

impl From<i8> for Json

fn from(v: i8) -> Self

Converts to this type from the input type.

impl From<i16> for Json

fn from(v: i16) -> Self

Converts to this type from the input type.

impl From<i32> for Json

fn from(v: i32) -> Self

Converts to this type from the input type.

impl From<i64> for Json

fn from(v: i64) -> Self

Converts to this type from the input type.

impl From<isize> for Json

fn from(v: isize) -> Self

Converts to this type from the input type.

impl From<u8> for Json

fn from(v: u8) -> Self

Converts to this type from the input type.

impl From<u16> for Json

fn from(v: u16) -> Self

Converts to this type from the input type.

impl From<u32> for Json

fn from(v: u32) -> Self

Converts to this type from the input type.

impl From<u64> for Json

fn from(v: u64) -> Self

Converts to this type from the input type.

impl From<usize> for Json

fn from(v: usize) -> Self

Converts to this type from the input type.

impl PartialEq for Json

fn eq(&self, other: &Json) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Json