Network application protocol based on event and semantic message streams

https://socketd.noear.org

Language: English | 中文

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One user said, "Socket.D is to Socket what Vue is to Js and Mvc is to Http."

Main Features

• Event-based, each message can be event-routed
• The so-called semantics is described by the meta-information
• Stream dependency, where related messages are strung together in a stream
• Language independent, binary transport (tcp, ws, udp) Support multi-language, multi-platform
• Disconnection reconnection, automatic connection restoration
• Multiplexing, allowing multiple request and response messages to run simultaneously on a single connection
• Two-way communication, single link two-way listening and sending
• Automatic sharding，Data over 16Mb (configurable) will be automatically split and reassembled (except udp)
• Simple interface, reactive but with callback interface

Simple comparison with other protocols

comparison	socket.d	http	websocket	rsocket	socket.io
Send (Qos0)	Yes	No	Yes	Yes	Yes
SendAndRequest (Qos1)	Yes	Yes	No	Yes	No
SendAndSubscribe (stream)	Yes	No	No	Yes	No
Reply or respond	Yes	Yes	No	Yes	No
Single connection two-way communication	Yes	No	Yes（trouble）	Yes	Yes（trouble）
Data sharding	Yes	/	No	Yes	Yes
Disconnection automatically reconnect	Yes	/	No	Yes	Yes
Meta information	Yes	Yes	No	Yes	No
Event（or path）	Yes	Yes	No	No	Yes
StreamId (or message correlation)	Yes	No	No	Yes	No
Broker pattern cluster	Yes	No	No	Yes	No
Asynchronous	Async	Sync	Async	Async	Async
Interface experience	Classic	Classic	Classic	Reactive(trouble)	Classic
Basic transport protocol	tcp, udp, ws	tcp	http	tcp, udp, ws	ws

Applicable scene

It can be used for MSG, RPC, IM, MQ and other scenarios, and can replace Http, Websocket, gRpc and other protocols. Such as the connection between the mobile device and the server, such as some microservice scenarios, etc.

Simple protocol description（ See more here：official website ）

• Connection address style

sd:tcp://19.10.2.3:9812/path?u=noear&t=1234
sd:udp://19.10.2.3:9812/path?u=noear&t=1234
sd:ws://19.10.2.3:1023/path?u=noear&t=1234

• Frame code structure

//udp only <2k
[len:int][flag:int][sid:str(<64)][\n][event:str(<512)][\n][metaString:str(<4k)][\n][data:byte(<16m)]

Join a community exchange group

QQ communication group：870505482	Wechat Communication group (input: SocketD when applying)

In the communication group, "nanny level" support and help are provided. Technical training and consultancy services are also available if required

Official website

https://socketd.noear.org

Special thanks to JetBrains for supporting the open source project