http

• Fixed default encoding for application/json without a charset to use utf8 instead of latin1, ensuring proper JSON decoding.
• Avoid references to window in BrowserClient, restoring support for web workers and NodeJS.

• Fixed unintended HTML tags in doc comments.
• Switched BrowserClient to use Fetch API instead of XMLHttpRequest.

• Require package web: '>=0.5.0 <2.0.0'.

• Require Dart ^3.3
• Require package:web ^0.5.0.

• Add MockClient.pngResponse, which makes it easier to fake image responses.
• Added the ability to fetch the URL of the response through BaseResponseWithUrl.
• Add the ability to get headers as a Map<String, List<String> to BaseResponse.

• Allow web: '>=0.3.0 <0.5.0'.

• BrowserClient throws ClientException when the 'Content-Length' header is invalid.
• IOClient trims trailing whitespace on header values.
• Require Dart 3.2
• Browser: support Wasm by using package:web.

• Add better error messages for SocketExceptions when using IOClient.
• Make StreamedRequest.sink a StreamSink. This makes request.sink.close() return a Future instead of void, but the returned future should not be awaited. The Future returned from sink.close() may only complete after the request has been sent.

• First non-experimental release; no semantic changes from version 0.1.6.

• BrowserClient throws an exception if send is called after close.
• If no_default_http_client=true is set in the environment then disk usage is reduced in some circumstances.
• Require Dart 2.19

• Allow async callbacks in RetryClient.
• In MockHttpClient use the callback returned Response.request instead of the argument value to give more control to the callback. This may be breaking for callbacks which return incomplete Responses and relied on the default.

• Throw a more useful error when a client is used after it has been closed.
• Require Dart 2.14.

• Validate that the method parameter of BaseRequest is a valid "token".

• Add package:http/retry.dart with RetryClient. This is the same implementation as package:http_retry which will be discontinued.

• Fix code samples in README to pass a Uri instance.

• Migrate to null safety.
• Add const constructor to ByteStream.
• Migrate BrowserClient from blob to arraybuffer.
• Breaking All APIs which previously allowed a String or Uri to be passed now require a Uri.
• Breaking Added a body and encoding argument to Client.delete. This is only breaking for implementations which override that method.

• Fix error handler callback type for response stream errors to avoid masking root causes.

• Add IOStreamedResponse which includes the ability to detach the socket. When sending a request with an IOClient the response will be an IOStreamedResponse.
• Remove dependency on package:async.

New Features

• The regular Client factory constructor is now usable anywhere that dart:io or dart:html are available, and will give you an IoClient or BrowserClient respectively.
• The package:http/http.dart import is now safe to use on the web (or anywhere that either dart:io or dart:html are available).

Breaking Changes

• In order to use or reference the IoClient directly, you will need to import the new package:http/io_client.dart import. This is typically only necessary if you are passing a custom HttpClient instance to the constructor, in which case you are already giving up support for web.

• Documentation fixes.

• Documentation fixes.

• Fix a bug setting the 'content-type' header in MultipartRequest.

• Add a Client.patch shortcut method and a matching top-level patch method.

• Support http_parser 1.0.0.

• Require Dart SDK >= 1.9.0

• Eliminate many uses of Chain.track from the stack_trace package.

• Support http_parser 2.0.0.

• Fix all strong mode warnings.

• Fix some lingering strong mode warnings.

• Fix one more strong mode warning in http/testing.dart.

• Declare compatibility with http_parser 3.0.0.

• Properly specify Content-Transfer-Encoding for multipart chunks.

• Remove an extra newline in multipart chunks.

• Fix the SDK constraint to only include SDK versions that support importing dart:io everywhere.

• Don't quote the boundary header for MultipartRequest. This is more compatible with server quirks.

• remove boundary characters that package:http_parser cannot parse.

• Remove single quote ("'" - ASCII 39) from boundary characters. Causes issues with Google Cloud Storage.

• Declare support for async 2.0.0.

• Stop depending on the stack_trace package.

• Use new Dart 2 constant names. This branch is only for allowing existing code to keep running under Dart 2.

• Add a BrowserClient.withCredentials property.

• Expose the IOClient class which wraps a dart:io HttpClient.

• Widen the version constraint for stack_trace.

• Properly namespace an internal library name.

• The package no longer depends on dart:io. The BrowserClient class in package:http/browser_client.dart can now be used to make requests on the browser.

• Change MultipartFile.contentType from dart:io's ContentType type to http_parser's MediaType type.

• Exceptions are now of type ClientException rather than dart:io's HttpException.

• Fix a bug in handling errors in decoding XMLHttpRequest responses for BrowserClient.

• Make BaseRequest.contentLength and BaseResponse.contentLength use null to indicate an unknown content length rather than -1.

• The contentLength parameter to new BaseResponse is now named rather than positional.

• Make request headers case-insensitive.

• Make MultipartRequest more closely adhere to browsers' encoding conventions.