Struct JsonPath

pub struct JsonPath { /* private fields */ }

A JSON Path value.

Implementations

impl JsonPath

pub fn query<'a, T: JsonRef<'a>>( &self, value: T, ) -> Result<Vec<Cow<'a, T::Owned>>, Error>

Evaluate the JSON path against the given JSON value.

pub fn query_with_vars<'a, T: JsonRef<'a>>( &self, value: T, vars: T, ) -> Result<Vec<Cow<'a, T::Owned>>, Error>

Evaluate the JSON path against the given JSON value with variables.

pub fn query_first<'a, T: JsonRef<'a>>( &self, value: T, ) -> Result<Option<Cow<'a, T::Owned>>, Error>

Evaluate the JSON path against the given JSON value.

pub fn query_first_with_vars<'a, T: JsonRef<'a>>( &self, value: T, vars: T, ) -> Result<Option<Cow<'a, T::Owned>>, Error>

Evaluate the JSON path against the given JSON value with variables.

pub fn exists<'a, T: JsonRef<'a>>(&self, value: T) -> Result<bool, Error>

Checks whether the JSON path returns any item for the specified JSON value.

pub fn exists_with_vars<'a, T: JsonRef<'a>>( &self, value: T, vars: T, ) -> Result<bool, Error>

Checks whether the JSON path returns any item for the specified JSON value, with variables.

impl JsonPath

pub fn new(s: &str) -> Result<Self, Error>

Compiles a JSON Path expression.

Trait Implementations

impl Clone for JsonPath

fn clone(&self) -> JsonPath

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JsonPath

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

Formats the value using the given formatter.

impl Display for JsonPath

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

Formats the value using the given formatter.

impl FromStr for JsonPath

fn from_str(s: &str) -> Result<Self, Self::Err>

Parse a JSON Path from string.

type Err = Error

The associated error which can be returned from parsing.

impl PartialEq for JsonPath

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for JsonPath

impl StructuralPartialEq for JsonPath