QueryParam<T extends Object> class

A read-only accessor for extracting typed query parameters.

Query parameters are the key-value pairs after ? in a URL. Use this with QueryParameters to extract typed values.

Example:

const pageParam = QueryParam<int>('page', int.parse);
handler(req) {
  final page = req.queryParameters.get(pageParam); // typed as int
  return Response.ok();
}

Inheritance

• Object
• ReadOnlyAccessor<T, String, RawQueryParam>
• QueryParam

Constructors

QueryParam(String key, Decoder<T, RawQueryParam> decode)

const

Properties

decode → Decoder<T, RawQueryParam>

Decodes the raw value into the typed value.

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

key → String

The key used to identify this value in storage.

final, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited