github.com/carterjones/signalr
Package signalr provides the client side implementation of the WebSocket portion of the SignalR protocol. First things first: this was almost entirely written using https://blog.3d-logic.com/2015/03/29/signalr-on-the-wire-an-informal-description-of-the-signalr-protocol/ as a reference guide. It is an excellent technical write-up. Many thanks to Pawel Kadluczka for writing that and sharing it with the public. If you want deep-dive technical details of how this all works, read that blog. I won't try to replicate it here. At a high level, the WebSocket portion of SignalR goes through the following steps: See the provided examples for how to use this library. This example shows the most basic way to start a websocket connection. This example shows how to manually perform each of the initialization steps.
Readme
This is my personal attempt at implementating the client side of the WebSocket portion of the SignalR protocol. I use it for various virtual currency trading platforms that use SignalR.
It supports CloudFlare-protected sites by default.
Simple example:
package main
import (
"log"
"github.com/carterjones/signalr"
)
func main() {
// Prepare a SignalR client.
c := signalr.New(
"fake-server.definitely-not-real",
"1.5",
"/signalr",
`[{"name":"awesomehub"}]`,
nil,
)
// Define message and error handlers.
msgHandler := func(msg signalr.Message) { log.Println(msg) }
panicIfErr := func(err error) {
if err != nil {
log.Panic(err)
}
}
// Start the connection.
err := c.Run(msgHandler, panicIfErr)
panicIfErr(err)
// Wait indefinitely.
select {}
}
Generic usage:
Cryptocurrency examples:
Proxy examples:
If anything is unclear or could be improved, please open an issue or submit a pull request. Thanks!
FAQs
Package signalr provides the client side implementation of the WebSocket portion of the SignalR protocol. First things first: this was almost entirely written using https://blog.3d-logic.com/2015/03/29/signalr-on-the-wire-an-informal-description-of-the-signalr-protocol/ as a reference guide. It is an excellent technical write-up. Many thanks to Pawel Kadluczka for writing that and sharing it with the public. If you want deep-dive technical details of how this all works, read that blog. I won't try to replicate it here. At a high level, the WebSocket portion of SignalR goes through the following steps: See the provided examples for how to use this library. This example shows the most basic way to start a websocket connection. This example shows how to manually perform each of the initialization steps.
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