Struct QueryParams 

pub struct QueryParams { /* private fields */ }

Stored query parameters for extraction.

Similar to PathParams but handles multi-value parameters. Stored in request extensions by the framework.

Implementations

impl QueryParams

pub fn new() -> Self

Create empty query params.

pub fn from_pairs(pairs: Vec<(String, String)>) -> Self

Create from a vector of key-value pairs.

pub fn parse(query: &str) -> Self

Parse from a query string (without leading ‘?’).

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

Get the first value for a key.

pub fn get_all(&self, key: &str) -> Vec<&str>

Get all values for a key.

pub fn contains(&self, key: &str) -> bool

Check if a key exists.

pub fn pairs(&self) -> &[(String, String)]

Get all key-value pairs.

pub fn keys(&self) -> impl Iterator<Item = &str>

Get iterator over unique keys.

pub fn len(&self) -> usize

Return the number of parameters (including duplicates).

pub fn is_empty(&self) -> bool

Check if empty.

Trait Implementations

impl Clone for QueryParams

fn clone(&self) -> QueryParams

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for QueryParams

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

Formats the value using the given formatter.

impl Default for QueryParams

fn default() -> QueryParams

Returns the “default value” for a type.