Struct Params

pub struct Params<'k, 'v> { /* private fields */ }

A list of parameters returned by a route match.

let matched = router.at("/users/1")?;

// Iterate through the keys and values.
for (key, value) in matched.params.iter() {
    println!("key: {}, value: {}", key, value);
}

// Get a specific value by name.
let id = matched.params.get("id");
assert_eq!(id, Some("1"));

Implementations

impl<'k, 'v> Params<'k, 'v>

pub fn new() -> Self

Create an empty list of parameters.

pub fn len(&self) -> usize

Returns the number of parameters.

pub fn get(&self, key: impl AsRef<str>) -> Option<&'v str>

Returns the value of the first parameter registered under the given key.

pub fn iter(&self) -> ParamsIter<'_, 'k, 'v>

Returns an iterator over the parameters in the list.

pub fn is_empty(&self) -> bool

Returns true if there are no parameters in the list.

Trait Implementations

impl<'k, 'v> Clone for Params<'k, 'v>

fn clone(&self) -> Params<'k, 'v>

Returns a copy 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<'_, '_>

fn default() -> Self

Returns the “default value” for a type.

impl<'k, 'v> Ord for Params<'k, 'v>

fn cmp(&self, other: &Params<'k, 'v>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'k, 'v> PartialEq for Params<'k, 'v>

fn eq(&self, other: &Params<'k, 'v>) -> 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<'k, 'v> PartialOrd for Params<'k, 'v>

fn partial_cmp(&self, other: &Params<'k, 'v>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'k, 'v> Eq for Params<'k, 'v>

impl<'k, 'v> StructuralPartialEq for Params<'k, 'v>