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A Gorilla WebSocket implementation for fasthttp.
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AUTHORS Update AUTHORS and added Go Report Card badge Aug 26, 2018
client.go Add "in bytes" to sizes in documentation Oct 30, 2018
client_test.go Replace parseURL() with net/url.Parse() (#290) Oct 13, 2017
compression.go fix flate write pool size to work with best compression Jan 24, 2017
conn.go Add "in bytes" to sizes in documentation Oct 30, 2018
conn_broadcast_test.go miscellaneous cleanup Aug 24, 2018
doc.go Merge branch 'master' of Mar 11, 2019
example_test.go Fix imports in examples Aug 26, 2018
go.mod Upgrade fasthttp to v1.2.0 Feb 18, 2019
json.go Misc cleanup Jul 18, 2017
mask.go Update with gofmt on tip Nov 23, 2017
mask_safe.go Add safe maskBytes Jan 1, 2017
prepared.go miscellaneous cleanup Aug 24, 2018
server.go Merge branch 'master' of Nov 2, 2018
server_fasthttp.go Avoid defer Feb 6, 2019
server_test.go miscellaneous cleanup Aug 24, 2018
trace.go Add context in the Dialer Aug 24, 2018
trace_17.go Add context in the Dialer Aug 24, 2018
x_net_proxy.go Add SOCKS5 support Dec 1, 2017

Fasthttp Gorilla WebSocket

Build Status Go Report Card GoDoc GitHub release

Gorilla WebSocket is an implementation of the WebSocket protocol for the Go programming language.

This fork adds fasthttp support to the latest version of gorilla/websocket.



The Gorilla WebSocket package provides a complete and tested implementation of the WebSocket protocol. The package API is stable.


go get

But beware that this will fetch the latest commit of the master branch which is never purposely broken, but usually not considered stable anyway.


If you're using dep, just use dep ensure to add a specific version of fasthttp/websocket including all its transitive dependencies to your project:

dep ensure -add

IMPORTANT: dep is only supported until version v1.4.0. In future versions will use Go modules.

Protocol Compliance

The Gorilla WebSocket package passes the server tests in the Autobahn Test Suite using the application in the examples/autobahn subdirectory.

Gorilla WebSocket compared with other packages
RFC 6455 Features
Passes Autobahn Test SuiteYesNo
Receive fragmented messageYesNo, see note 1
Send close messageYesNo
Send pings and receive pongsYesNo
Get the type of a received data messageYesYes, see note 2
Other Features
Compression ExtensionsExperimentalNo
Read message using io.ReaderYesNo, see note 3
Write message using io.WriteCloserYesNo, see note 3


  1. Large messages are fragmented in Chrome's new WebSocket implementation.
  2. The application can get the type of a received data message by implementing a codec marshal function.
  3. The go/net io.Reader and io.Writer operate across WebSocket frame boundaries. Read returns when the input buffer is full or a frame boundary is encountered. Each call to Write sends a single frame message. The Gorilla io.Reader and io.WriteCloser operate on a single WebSocket message.
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