universal_io library Null safety

Cross-platform implementation of "dart:io" that works in browsers too.

Usage

Replace imports of "dart:io" with:

import 'package:universal_io/io_impl_js.dart';

Classes

BrowserHttpClient
Implemented by HttpClient when the application runs in browser.
BrowserHttpClientRequest
Implemented by HttpClientRequest when the application runs in browser.
BrowserHttpClientResponse
Implemented by HttpClientResponse when the application runs in browser.
BytesBuilder
Builds a list of bytes, allowing bytes and lists of bytes to be added at the end.
CompressionOptions
Options controlling compression in a WebSocket.
ConnectionTask<S>
A cancelable connection attempt.
ContentType
A MIME/IANA media type used as the value of the HttpHeaders.contentTypeHeader header.
Representation of a cookie. For cookies received by the server as Cookie header values only name and value properties will be set. When building a cookie for the 'set-cookie' header in the server and when receiving cookies in the client as 'set-cookie' headers all fields can be used.
Datagram
A data packet received by a RawDatagramSocket.
Directory
A reference to a directory (or folder) on the file system.
File
A reference to a file on the file system.
FileLock
Type of lock when requesting a lock on a file.
FileMode
The modes in which a File can be opened.
FileStat
The result of calling the POSIX stat() function on a file system object.
FileSystemCreateEvent
File system event for newly created file system objects.
FileSystemDeleteEvent
File system event for deletion of file system objects.
FileSystemEntity
The common superclass of File, Directory, and Link.
FileSystemEntityType
The type of an entity on the file system, such as a file, directory, or link.
FileSystemEvent
Base event class emitted by FileSystemEntity.watch.
FileSystemModifyEvent
File system event for modifications of file system objects.
FileSystemMoveEvent
File system event for moving of file system objects.
GZipCodec
The GZipCodec encodes raw bytes to GZip compressed bytes and decodes GZip compressed bytes to raw bytes.
HeaderValue
Representation of a header value in the form:
HttpClient
An HTTP client for communicating with an HTTP server.
HttpClientBasicCredentials
Represents credentials for basic authentication.
HttpClientCredentials
HttpClientDigestCredentials
Represents credentials for digest authentication. Digest authentication is only supported for servers using the MD5 algorithm and quality of protection (qop) of either "none" or "auth".
HttpClientRequest
HTTP request for a client connection.
HttpClientResponse
HTTP response for a client connection.
HttpConnectionInfo
Information about an HttpRequest, HttpResponse, HttpClientRequest, or HttpClientResponse connection.
HttpConnectionsInfo
Summary statistics about an HttpServers current socket connections.
HttpDate
Utility functions for working with dates with HTTP specific date formats.
HttpHeaders
Headers for HTTP requests and responses.
HttpOverrides
This class facilitates overriding HttpClient with a mock implementation. It should be extended by another class in client code with overrides that construct a mock implementation. The implementation in this base class defaults to the actual HttpClient implementation. For example:
HttpRequest
A server-side object that contains the content of and information about an HTTP request.
HttpResponse
An HTTP response, which returns the headers and data from the server to the client in response to an HTTP request.
HttpServer
A server that delivers content, such as web pages, using the HTTP protocol.
HttpSession
The HttpRequest.session of an HttpRequest.
HttpStatus
HTTP status codes. Exported in dart:io and dart:html.
InternetAddress
An internet address or a Unix domain address.
InternetAddressType
The type, or address family, of an InternetAddress.
IOOverrides
Facilities for overriding various APIs of dart:io with mock implementations.
IOSink
A combined byte and text output.
References to filesystem links.
NetworkInterface
A NetworkInterface represents an active network interface on the current system. It contains a list of InternetAddresses that are bound to the interface.
Platform
Information about the environment in which the current program is running.
Process
The means to execute a program.
ProcessInfo
Methods for retrieving information about the current process.
ProcessResult
The result of running a non-interactive process started with Process.run or Process.runSync.
ProcessSignal
On Posix systems, ProcessSignal is used to send a specific signal to a child process, see Process.kill.
ProcessStartMode
Modes for running a new process.
RandomAccessFile
Random access to the data in a file.
RawDatagramSocket
An unbuffered interface to a UDP socket.
RawSecureServerSocket
A server socket providing a stream of low-level RawSecureSockets.
RawSecureSocket
RawSecureSocket provides a secure (SSL or TLS) network connection.
RawServerSocket
A listening socket.
RawSocket
A TCP connection.
RawSocketEvent
Events for the RawSocket.
RawSocketOption
The RawSocketOption is used as a parameter to Socket.setRawOption and RawSocket.setRawOption to customize the behaviour of the underlying socket.
RawSynchronousSocket
A low-level class for communicating synchronously over a TCP socket.
RawZLibFilter
The RawZLibFilter class provides a low-level interface to zlib.
RedirectInfo
Redirect information.
ResourceHandle
A wrappper around OS resource handle so it can be passed via Socket as part of SocketMessage.
SecureServerSocket
A server socket, providing a stream of high-level Sockets.
SecureSocket
A TCP socket using TLS and SSL.
SecurityContext
The object containing the certificates to trust when making a secure client connection, and the certificate chain and private key to serve from a secure server.
ServerSocket
A listening socket.
Socket
A TCP connection between two sockets.
SocketControlMessage
Control message part of the SocketMessage received by a call to RawSocket.readMessage.
SocketDirection
The SocketDirection is used as a parameter to Socket.close and RawSocket.close to close a socket in the specified direction(s).
SocketMessage
A socket message received by a RawDatagramSocket.
SocketOption
An option for a socket which is configured using Socket.setOption.
Stdin
The standard input stream of the process.
StdioType
The type of object a standard IO stream can be attached to.
Stdout
An IOSink connected to either the standard out or error of the process.
SystemEncoding
The system encoding is the current code page on Windows and UTF-8 on Linux and Mac.
WebSocket
A two-way HTTP communication object for client or server applications.
WebSocketStatus
WebSocket status codes used when closing a WebSocket connection.
WebSocketTransformer
The WebSocketTransformer provides the ability to upgrade a HttpRequest to a WebSocket connection. It supports both upgrading a single HttpRequest and upgrading a stream of HttpRequests.
X509Certificate
X509Certificate represents an SSL certificate, with accessors to get the fields of the certificate.
ZLibCodec
The ZLibCodec encodes raw bytes to ZLib compressed bytes and decodes ZLib compressed bytes to raw bytes.
ZLibDecoder
The ZLibDecoder is used by ZLibCodec and GZipCodec to decompress data.
ZLibEncoder
The ZLibEncoder encoder is used by ZLibCodec and GZipCodec to compress data.
ZLibOption
Exposes ZLib options for input parameters.

Constants

gzip → const GZipCodec
An instance of the default implementation of the GZipCodec.
const GZipCodec._default()
systemEncoding → const SystemEncoding
The current system encoding.
const SystemEncoding()
zlib → const ZLibCodec
An instance of the default implementation of the ZLibCodec.
const ZLibCodec._default()

Properties

exitCode int
Get the global exit code for the Dart VM.
read / write
pid int
Returns the PID of the current process.
read-only
stderr Stdout
The standard output stream of errors written by this program.
read-only
stdin Stdin
The standard input stream of data read by this program.
read-only
stdout Stdout
The standard output stream of data written by this program.
read-only

Functions

exit(int code) → Never
Exit the Dart VM process immediately with the given exit code.
sleep(Duration duration) → void
Sleep for the duration specified in duration.
stdioType(dynamic object) StdioType
Whether a stream is attached to a file, pipe, terminal, or something else.

Enums

HttpClientResponseCompressionState
Enum that specifies the compression state of the byte stream of an HttpClientResponse.

Typedefs

BadCertificateCallback = bool Function(X509Certificate cr, String host, int port)

Exceptions / Errors

BrowserHttpClientException
May be thrown by BrowserHttpClientRequest.close() in browsers.
CertificateException
An exception that happens in the handshake phase of establishing a secure network connection, when looking up or verifying a certificate.
FileSystemException
Exception thrown when a file operation fails.
HandshakeException
An exception that happens in the handshake phase of establishing a secure network connection.
HttpException
IOException
Base class for all IO related exceptions.
OSError
An Exception holding information about an error from the operating system.
ProcessException
RedirectException
SignalException
SocketException
Exception thrown when a socket operation fails.
StdinException
Exception thrown by some operations of Stdin
StdoutException
Exception thrown by some operations of Stdout
TlsException
A secure networking exception caused by a failure in the TLS/SSL protocol.
WebSocketException