Enum Params 

pub enum Params {
    Array(Vec<Value>),
    Object(Map<String, Value>),
}

The “params” field of a JSON-RPC request.

As per the JSON-RPC specification, if present these must be a JSON Array or Object.

NOTE: Currently we treat ‘“params”: null’ as ‘“params”: []’, but this deviation from the standard will be removed in an upcoming release, and null will become an invalid value.

Params is effectively a restricted serde_json::Value, and can be converted to a Value using Value::from() if required.

Variants

Array(Vec<Value>)

Represents a JSON Array.

Object(Map<String, Value>)

Represents a JSON Object.

Implementations

impl Params

pub fn is_array(&self) -> bool

Returns true if self is an Array, otherwise returns false.

pub fn as_array(&self) -> Option<&Vec<Value>>

Returns a reference to the inner Vec if self is an Array, otherwise returns None.

pub fn as_array_mut(&mut self) -> Option<&mut Vec<Value>>

Returns a mutable reference to the inner Vec if self is an Array, otherwise returns None.

pub fn is_object(&self) -> bool

Returns true if self is an Object, otherwise returns false.

pub fn as_object(&self) -> Option<&Map<String, Value>>

Returns a reference to the inner Map if self is an Object, otherwise returns None.

pub fn as_object_mut(&mut self) -> Option<&mut Map<String, Value>>

Returns a mutable reference to the inner Map if self is an Object, otherwise returns None.

pub fn is_empty(&self) -> bool

Returns true if self is an empty Array or an empty Object, otherwise returns false.

Trait Implementations

impl Clone for Params

fn clone(&self) -> Params

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Params

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

Formats the value using the given formatter.

impl Default for Params

The default value for Params is an empty Array.

fn default() -> Self

Returns the “default value” for a type.

impl Display for Params

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

Formats the value using the given formatter.

impl From<Params> for Value

fn from(params: Params) -> Self

Converts to this type from the input type.

impl PartialEq for Params

fn eq(&self, other: &Params) -> 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 Params

impl StructuralPartialEq for Params