Struct QueryParams 

pub struct QueryParams { /* private fields */ }

Parsed query string parameters extracted from the request URI.

Automatically injected into the Bus by HttpIngress for every request. Use bus.read::<QueryParams>() inside transitions to access query parameters.

Example

let page = bus.read::<QueryParams>()
    .and_then(|q| q.get_parsed::<i64>("page"))
    .unwrap_or(1);

Implementations

impl QueryParams

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

Create QueryParams from a raw query string (e.g. "page=1&limit=20").

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

Get a raw string value by key.

pub fn get_parsed<T: FromStr>(&self, key: &str) -> Option<T>

Parse a query parameter value as type T.

Returns None if the key is absent or parsing fails.

pub fn get_or<T: FromStr>(&self, key: &str, default: T) -> T

Get a parsed value, or return default if absent or unparseable.

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

Check if a key exists in the query parameters.

pub fn as_map(&self) -> &HashMap<String, String>

Get reference to the underlying map.

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.

impl PartialEq for QueryParams

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

impl StructuralPartialEq for QueryParams