Response extension type

The Response interface of the Fetch API represents the response to a request.

You can create a new Response object using the Response.Response constructor, but you are more likely to encounter a Response object being returned as the result of another API operation—for example, a service worker FetchEvent.respondWith, or a simple fetch.

API documentation sourced from MDN Web Docs.

on
Implemented types
Available extensions

Constructors

Response([BodyInit? body, ResponseInit init])
factory

Properties

asString → String

Available on JSAny, provided by the JSAnyExtension extension

no setter
asString → String?

Available on JSAny?, provided by the JSAnyNullableExtension extension

no setter
body → ReadableStream?
The body read-only property of the Response interface is a ReadableStream of the body contents.
no setter
bodyUsed → bool
The bodyUsed read-only property of the Response interface is a boolean value that indicates whether the body has been read yet.
no setter
entries → Iterable<MapEntry<String, dynamic>>

Available on JSObject, provided by the JSObjectExtension extension

no setter
hashCode → int
The hash code for this object.
no setterinherited
headers → Headers
The headers read-only property of the Response interface contains the Headers object associated with the response.
no setter
isDefinedAndNotNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

no setter
isElement → bool

Available on JSObject?, provided by the JSObjectWebExtension extension

no setter
isHTMLElement → bool

Available on JSObject?, provided by the JSObjectWebExtension extension

no setter
isNode → bool

Available on JSObject?, provided by the JSObjectWebExtension extension

no setter
isNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

Whether this value corresponds to JavaScript null.
no setter
isTruthy → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of !!this in JavaScript.
no setter
isUndefined → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

Whether this value corresponds to JavaScript undefined.
no setter
isUndefinedOrNull → bool

Available on JSAny?, provided by the NullableUndefineableJSAnyExtension extension

no setter
keys → Iterable<String>

Available on JSObject, provided by the JSObjectExtension extension

no setter
not → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of !this in JavaScript.
no setter
ok → bool
The ok read-only property of the Response interface contains a Boolean stating whether the response was successful (status in the range 200-299) or not.
no setter
redirected → bool
The read-only redirected property of the Response interface indicates whether or not the response is the result of a request you made which was redirected.
no setter
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
status → int
The status read-only property of the Response interface contains the HTTP status codes of the response.
no setter
statusText → String
The statusText read-only property of the Response interface contains the status message corresponding to the HTTP status code in Response.status.
no setter
type → ResponseType
The type read-only property of the Response interface contains the type of the response. It can be one of the following:
no setter
url → String
The url read-only property of the Response interface contains the URL of the response. The value of the url property will be the final URL obtained after any redirects.
no setter

Methods

add(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this + any in JavaScript.
and(JSAny? any) → JSAny?

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this && any in JavaScript.
arrayBuffer() → JSPromise<JSArrayBuffer>
The arrayBuffer() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with an ArrayBuffer.
as<T extends JSObject>() → T?

Available on JSObject, provided by the JSObjectExtension extension

blob() → JSPromise<Blob>
The blob() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with a Blob.
bytes() → JSPromise<JSUint8Array>
The bytes() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with a Uint8Array.
callMethod<R extends JSAny?>(JSAny method, [JSAny? arg1, JSAny? arg2, JSAny? arg3, JSAny? arg4]) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Calls method on this JSObject with up to four arguments.
callMethodVarArgs<R extends JSAny?>(JSAny method, [List<JSAny?>? arguments]) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Calls method on this JSObject with a variable number of arguments.
clone() → Response
The clone() method of the Response interface creates a clone of a response object, identical in every way, but stored in a different variable.
dartify() → Object?

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Converts a JavaScript JSON-like value to the Dart equivalent if possible.
delete(JSAny property) → JSBoolean

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Deletes the property with key property from this JSObject.
divide(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this / any in JavaScript.
equals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this == any in JavaScript.
exponentiate(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this ** any in JavaScript.
formData() → JSPromise<FormData>
The formData() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with a FormData object.
get(String key) → Object?

Available on JSObject, provided by the JSObjectExtension extension

getProperty<R extends JSAny?>(JSAny property) → R

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

The value of the property key property of this JSObject.
greaterThan(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this > any in JavaScript.
greaterThanOrEqualTo(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this >= any in JavaScript.
has(String property) → bool

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for hasProperty to check whether this JSObject contains the property key property, but takes and returns a Dart value.
hasProperty(JSAny property) → JSBoolean

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Whether or not this JSObject contains the property key property.
instanceof(JSFunction constructor) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instanceof constructor.
instanceOfString(String constructorName) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instanceof the constructor that is defined by constructorName, which is looked up in the globalContext.
isA<T extends JSAny?>() → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether this JSAny? is an instance of the JavaScript type that is declared by T.
json() → JSPromise<JSAny?>
The json() method of the Response interface takes a Response stream and reads it to completion. It returns a promise which resolves with the result of parsing the body text as JSON.
lessThan(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this < any in JavaScript.
lessThanOrEqualTo(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this <= any in JavaScript.
modulo(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this % any in JavaScript.
multiply(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this * any in JavaScript.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
notEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this != any in JavaScript.
or(JSAny? any) → JSAny?

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this || any in JavaScript.
put(Object key, Object? value) → void

Available on JSObject, provided by the JSObjectExtension extension

setProperty(JSAny property, JSAny? value) → void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Write the value of property key property of this JSObject.
strictEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this === any in JavaScript.
strictNotEquals(JSAny? any) → JSBoolean

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this !== any in JavaScript.
subtract(JSAny? any) → JSAny

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this - any in JavaScript.
text() → JSPromise<JSString>
The text() method of the Response interface takes a Response stream and reads it to completion. It returns a promise that resolves with a String. The response is always decoded using UTF-8.
toMap() → Map<String, dynamic>

Available on JSObject, provided by the JSObjectExtension extension

toString() → String
A string representation of this object.
inherited
typeofEquals(String typeString) → bool

Available on JSAny?, provided by the JSAnyUtilityExtension extension

Whether the result of typeof on this JSAny? is typeString.
unsignedRightShift(JSAny? any) → JSNumber

Available on JSAny?, provided by the JSAnyOperatorExtension extension

The result of this >>> any in JavaScript.

Operators

operator ==(Object other) → bool
The equality operator.
inherited
operator [](String property) → JSAny?

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for getProperty to get the value of the property key property of this JSObject, but takes a Dart value.
operator []=(String property, JSAny? value) → void

Available on JSObject, provided by the JSObjectUnsafeUtilExtension extension

Shorthand helper for setProperty to write the value of the property key property of this JSObject, but takes a Dart value.

Static Methods

error() → Response
The error() static method of the Response interface returns a new Response object associated with a network error.
json_(JSAny? data, [ResponseInit init]) → Response
The json() static method of the Response interface returns a Response that contains the provided JSON data as body, and a header which is set to application/json. The response status, status message, and additional headers can also be set.
redirect(String url, [int status]) → Response
The redirect() static method of the Response interface returns a Response resulting in a redirect to the specified URL.