Dio class abstract

Dio enables you to make HTTP requests easily.

Creating a Dio instance with configurations:

final dio = Dio(
  BaseOptions(
    baseUrl: "https://pub.dev",
    connectTimeout: const Duration(seconds: 5),
    receiveTimeout: const Duration(seconds: 5),
    headers: {
      HttpHeaders.userAgentHeader: 'dio',
      'common-header': 'xx',
    },
  )
);

The Dio.options can be updated in anytime:

dio.options.baseUrl = "https://pub.dev";
dio.options.connectTimeout = const Duration(seconds: 5);
dio.options.receiveTimeout = const Duration(seconds: 5);

Constructors

Dio([BaseOptions? options])

Create the default Dio instance with the default implementation based on different platforms.

factory

Properties

hashCode → int

The hash code for this object.

no setter, inherited

httpClientAdapter ↔ HttpClientAdapter

The adapter that the instance is using.

getter/setter pair

interceptors → Interceptors

Return the interceptors added into the instance.

no setter

options ↔ BaseOptions

Default Request config. More see BaseOptions .

getter/setter pair

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

transformer ↔ Transformer

Transformer allows changes to the request/response data before it is sent/received to/from the server. This is only applicable for requests that have payload.

getter/setter pair

Methods

close({bool force = false}) → void

Shuts down the dio client.

delete<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken}) → Future<Response<T>>

Convenience method to make an HTTP DELETE request.

deleteUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken}) → Future<Response<T>>

Convenience method to make an HTTP DELETE request with Uri.

download(String urlPath, dynamic savePath, {ProgressCallback? onReceiveProgress, Map<String, dynamic>? queryParameters, CancelToken? cancelToken, bool deleteOnError = true, String lengthHeader = Headers.contentLengthHeader, Object? data, Options? options}) → Future<Response>

Download the file and save it in local. The default http method is "GET", you can custom it by Options.method.

downloadUri(Uri uri, dynamic savePath, {ProgressCallback? onReceiveProgress, CancelToken? cancelToken, bool deleteOnError = true, String lengthHeader = Headers.contentLengthHeader, Object? data, Options? options}) → Future<Response>

Download the file and save it in local. The default http method is "GET", you can custom it by Options.method.

fetch<T>(RequestOptions requestOptions) → Future<Response<T>>

The eventual method to submit requests. All callers for requests should eventually go through this method.

get<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP GET request.

getUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP GET request with Uri.

head<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken}) → Future<Response<T>>

Convenience method to make an HTTP HEAD request.

headUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken}) → Future<Response<T>>

Convenience method to make an HTTP HEAD request with Uri.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

patch<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP PATCH request.

patchUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP PATCH request with Uri.

post<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP POST request.

postUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP POST request with Uri.

put<T>(String path, {Object? data, Map<String, dynamic>? queryParameters, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP PUT request.

putUri<T>(Uri uri, {Object? data, Options? options, CancelToken? cancelToken, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Convenience method to make an HTTP PUT request with Uri.

request<T>(String url, {Object? data, Map<String, dynamic>? queryParameters, CancelToken? cancelToken, Options? options, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Make HTTP request with options.

requestUri<T>(Uri uri, {Object? data, CancelToken? cancelToken, Options? options, ProgressCallback? onSendProgress, ProgressCallback? onReceiveProgress}) → Future<Response<T>>

Make http request with options with Uri.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited