alec1o / Netly

Cross-Platform and Multi-Protocol C# Socket Library. (Extremely fast and easy) πŸ‡³ πŸ‡ͺ πŸ‡Ή πŸ‡± πŸ‡Ύ
https://netly.docs.kezero.com
MIT License
58 stars 8 forks source link
c-sharp chat dotnet http mono multiplayer net netly network networking realtime rudp socket sockets ssl tcp tls udp websocket
The active development branch is 'dev', while the production branch is 'main'.

Netly version 4 will be released soon, help validating the new way of interacting with netly. See more

⭐ Your star is the light at the end of our tunnel.
Lead us out of the darkness by starring Netly on GitHub.
Star me please, I beg you! πŸ’™


Netly

powered by ALEC1O
netly logo
Version 4 Development Status
πŸ‘Œ Perfect Byter 3 TCP.Client TCP.Server UDP.Client UDP.Server HTTP.Client HTTP.Server HTTP.Websocket
🚫 Not Implemented RUDP.Client RUDP.Server
πŸ”© Initialized V4 Documentation HTTP.Body (Enctype detector and parser)


Project

Get basic information about this project called Netly

Overview
Netly is a powerful C# socket library that simplifies network communication. It supports HTTP, TCP, SSL/TLS, UDP, Reliable UDP (RUDP) and WebSocket protocols, making it ideal for building multiplayer games, chat applications, and more.

Website
Repository: github.com/alec1o/netly
Documentation: netly.docs.kezero.com

Sponsor
KeZero sponsor notice
JetBrains sponsor notice

Supporter
Why Contribute to Netly
> Solve Real-World Challenges: Netly simplifies socket programming, making it accessible for developers. By > contributing, you’ll directly impact how games, chat applications, and real-time systems communicate. > Learn and Grow: Dive into the world of networking, encryption, and protocols. Gain practical experience by > working on a versatile library used across platforms. > Be Part of Something Bigger: Netly is open source, and your contributions will benefit the entire community. Join > a passionate group of developers who believe in collaboration and knowledge sharing. > Code, Ideas, and Feedback: Whether you’re a seasoned developer or just starting out, your code, ideas, and > feedback matter. Every line of code, every suggestion, and every bug report contributes to Netly’s growth.


Installing

Official publisher

Nuget Unity Asset Store
Install on Nuget Install on Asset Store


Versions

Notable changes

v1.x.x v2.x.x v3.x.x v4.x.x
Legacy Legacy Stable Development
TCP Support TCP with Message Framing support TCP with TLS/SSL support HTTP client and server support
UDP Support TCP and UDP performance increase UDP with connection (timeout response) Reliable UDP (RUDP) client and server support
New Message Framing protocol and performance increase WebSocket client and server support
Upgrade to Byter 2.0 Upgrade to Byter 3.0
Docsify as documentation framework Documentation improvement by DocFx
Syntax and internal improvement
XML comments improvement


Integrations

Technical descriptions about integrations

List of tested platforms
- [.NET](https://dotnet.microsoft.com) (SDK) - [Mono](https://mono-project.com) (SDK) - [Unity](https://unity.com) (Engine) - [Operating system](https://en.wikipedia.org/wiki/Operating_system) (OS) - Linux - Windows - Android - iOS - macOS

- Notice: This library might run on all devices. If it doesn't work on any device, it should be considered a bug and reported.
Dependencies
byter logo Byter
Build
> ###### Build dependencies - [Git](http://git-scm.com/) - [.NET](http://dot.net) > ###### Build step-by-step ```rb # 1. clone project $ git clone "https://github.com/alec1o/Netly" netly # 2. build project $ dotnet build "netly/" -c Release -o "netly/bin/" # NOTE: # Netly.dll require Byter.dll because is Netly dependency # Netly.dll and Byter.dll have on build folder /bin/ ```
Features
> Below are some missing features that are planned to be added in later versions.
- ``N/A``


Examples

Code highlights

TCP
πŸ“„ Client ```csharp using Netly; TCP.Client client = new TCP.Client(framing: true); ``` ```csharp client.On.Open(() => { printf("connection opened"); }); client.On.Close(() => { printf("connetion closed"); }); client.On.Error((exception) => { printf("connection erro on open"); }); client.On.Data((bytes) => { printf("connection receive a raw data"); }); client.On.Event((name, data) => { printf("connection receive a event"); }); client.On.Modify((socket) => { printf("called before try open connection."); }); client.On.Encryption((certificate, chain, errors) => { // Only if client.IsEncrypted is enabled printf("validate ssl/tls certificate"); // return true if certificate is valid return true; }); ``` ```csharp // open connection if closed client.To.Open(new Host("127.0.0.1", 8080)); // close connection if opened client.To.Close(); // send raw data if connected client.To.Data(new byte[2] { 128, 255 }); client.To.Data("hello world", NE.Encoding.UTF8); // send event if connected client.To.Event("name", new byte[2] { 128, 255 }); client.To.Event("name", "hello world", NE.Encoding.UTF8); // enable encryption (must call before client.To.Open) client.To.Encryption(true); ```
πŸ“„ Server ```csharp using Netly; TCP.Server server = new TCP.Server(framing: true); ``` ```csharp server.On.Open(() => { printf("connection opened"); }); server.On.Close(() => { printf("connection closed"); }); server.On.Error((exception) => { printf("connection error on open"); }); server.On.Accept((client) => { client.On.Modify((socket) => { printf("modify client socket e.g Enable NoDelay"); }); client.On.Open(() => { printf("client connected"); }); client.On.Data((bytes) => { printf("client receive a raw data"); }); client.On.Event((name, bytes) => { printf("client receive a event"); }); client.On.Close(() => { printf("client disconnected"); }); }); server.On.Modify((socket) => { printf("called before try open connection."); }); ``` ```csharp // open connection server.To.Open(new Host("1.1.1.1", 1111)); // close connection server.To.Close(); // enable encryption support (must called before server.To.Open) server.To.Encryption(enable: true, @mypfx, @mypfxpassword, SslProtocols.Tls12); // broadcast raw data for all connected client server.To.DataBroadcast("text buffer"); server.To.DataBroadcast(new byte[] { 1, 2, 3 }); // broadcast event (netly event) for all connected client server.To.EventBroadcast("event name", "text buffer"); server.To.EventBroadcast("event name", new byte[] { 1, 2, 3 }); ```
UDP
πŸ“„ Client ```csharp using Netly; UDP.Client client = new UDP.Client(); ``` ```csharp client.On.Open(() => { printf("connection opened"); }); client.On.Close(() => { printf("connection closed"); }); client.On.Error((exception) => { printf("connection error on open"); }); client.On.Data((bytes) => { printf("connection received a raw data"); }); client.On.Event((name, eventBytes) => { printf("connection received a event"); }); client.On.Modify((socket) => { printf("called before try open connection."); }); ``` ```csharp // open connection if closed client.To.Open(new Host("127.0.0.1", 8080)); // close connection if opened client.To.Close(); // send raw data if connected client.To.Data(new byte[2] { 128, 255 }); client.To.Data("hello world", NE.Encoding.UTF8); // send event if connected client.To.Event("name", new byte[2] { 128, 255 }); client.To.Event("name", "hello world", NE.Encoding.UTF8); ```
πŸ“„ Server ```csharp using Netly; UDP.Server server = new UDP.Server(); ``` ```csharp server.On.Open(() => { printf("connection opened"); }); server.On.Close(() => { printf("connection closed"); }); server.On.Error((exception) => { printf("connection error on open"); }); server.On.Accept((client) => { client.On.Open(() => { printf("client connected"); }); client.On.Close(() => { // Only if use connection is enabled. printf("client disconnected"); }); client.On.Data((bytes) => { printf("client received a raw data"); }); client.On.Event((name, bytes) => { printf("client received a event"); }); }); ``` ```csharp // open connection server.To.Open(new Host("127.0.0.1", 8080)); // close connection server.To.Close(); // broadcast raw data for all connected client server.To.DataBroadcast("text buffer"); server.To.DataBroadcast(new byte[] { 1, 2, 3 }); // broadcast event (netly event) for all connected client server.To.EventBroadcast("event name", "text buffer"); server.To.EventBroadcast("event name", new byte[] { 1, 2, 3 }); ```
HTTP
πŸ“„ Client ```csharp using Netly; HTTP.Client client = new HTTP.Client(); // add http header for request client.Headers.Add("Content-Type", "json"); client.Headers.Add("Token", "ImGui.h"); // add http url queries e.g: https://www.alec1o.com/?page=about&version=4 client.Queries.Add("page", "about"); client.Queries.Add("version", "4"); // set request timeout (ms) default 15s (15000ms), 0 or negative value means infinite timeout. client.Timeout = 6000; // 6s // is opened: while is requesting bool isFetching = client.IsOpened; ``` ```csharp HttpClient http = null; // called before try connect to server // modify the HttpClient object client.On.Modify((HttpClient instance) => { http = instance; }); // connection is opened and fetch server. client.On.Open((response) => { // you can use "http" instance on this scope (isn't null) if (http. == ) { ... } }); // erro on fetch, it can be timeout or whatever error // but if you receives error it mean the operation is called or done client.On.Error((Exception exception) => { Ny.Logger.PushError(exception); }); // connection is closed with fetch server. client.On.Close(() => { if (http. == ) { ... } }); ``` ```csharp // used to fetch a server client.To.Open("method e.g GET", "url", "body, allow null"); // used for cancel opened request client.To.Close(); ```
πŸ“„ Server ```csharp using Netly; HTTP.Server server = new HTTP.Server(); // return true if server is serve http context bool isServe = server.IsOpened; ``` ```csharp server.On.Open(() => { // http server opened }); server.On.Close(() => { // http server closed }); server.On.Error((exception) => { // http server open error }); server.On.Modify((httpListener) => { // HttpListener instance, called before try open connection. }); // Open http server connection server.To.Open(new Uri("http://127.0.0.1:8080/")); // Close http server connection server.To.Close(); ``` ##### Map ```csharp // Map path server.Map.Get("/", async (req, res) => { // Handle async: GET }) server.Map.Post("/user", (req, res) => { // Handle sync: POST }); // map using dynamic URL server.Map.Delete("/post/{userId}/group/{groupId}", async (req, res)) => { string userId = req.Param["userId"]; string groupId = req.Param["groupId"]; // Handle async: Delete from dynamic URL path }); server.Map.WebSocket("/echo", (req, ws) => { // Handle websocket connection from path }); /* You can map: * Get # get request * Post # post request * Delete # delete request * Put # put request * Patch # patch request * Trace # trace request * Options # options request * Head # head request, (only head) * All # all http nethod request * WebSocket # websocket request */ ``` ##### Middleware ```csharp /* Note: Middlewares is executed in added order */ // Global Middleware (*don't have workflow path) server.Middleware.Add(async (req, res, next) => { // verify request timer Stopwatch watch = new Stopwatch(); // init timer next(); // call another middleware. watch.Stop(); // stop timer res.Header.Add("Request-Timer", watch.ElapsedMilliseconds.ToString()); }); // Local middleware (have workflow path) server.Middleware.Add("/admin", async (req, res, next) => { if (MyApp.CheckAdminByHeader(req.Header)) { res.Header.Add("Admin-Token", MyApp.RefreshAdminHeaderToken(req)); // call next middleware next(); // now. all middleware is executed. (because this is two way middleware) res.Header.Add("Request-Delay", (DateTime.UtcNow - timer)()); } else { res.Header.Add("Content-Type", "application/json;charset=UTF-8"); await res.Send(404, "{ 'error': 'invalid request.' }"); // skip other middlewares: // next(); } }); ```
RUDP
πŸ“„ Client ```csharp using Netly; RUDP.Client client = new RUDP.Client(); ``` ```csharp client.On.Open(() => { printf("connection opened"); }); client.On.Close(() => { printf("connection closed"); }); client.On.Error((exception) => { printf("connection error on open"); }); client.On.Data((bytes, type) => { printf("connection received a raw data"); }); client.On.Event((name, bytes, type) => { printf("connection received a event"); }); client.On.Modify((socket) => { printf("called before try open connection."); }); ``` ```csharp // open connection if closed client.To.Open(new Host("127.0.0.1", 8080)); // close connection if opened client.To.Close(); // send raw data if connected client.To.Data(new byte[2] { 128, 255 }, RUDP.Unreliable); client.To.Data("hello world", NE.Encoding.UTF8, RUDP.Reliable); // send event if connected client.To.Event("name", new byte[2] { 128, 255 }, RUDP.Unreliable); client.To.Event("name", "hello world", NE.Encoding.UTF8, RUDP.Reliable); ```
πŸ“„ Server ```csharp using Netly; RUDP.Server server = new RUDP.Server(); ``` ```csharp server.On.Open(() => { printf("connection opened"); }); server.On.Close(() => { printf("connection closed"); }); server.On.Error((exception) => { printf("connection error on open"); }); server.On.Accept((client) => { client.On.Open(() => { printf("client connected"); }); client.On.Close(() => { // Only if use connection is enabled. printf("client disconnected"); }); client.On.Data((bytes, type) => { if (type == RUDP.Reliable) { ... } else if (type == RUDP.Unreliable) { ... } else { /* NOTE: it's imposible */ } printf("client received a raw data"); }); client.On.Event((name, type) => if (type == RUDP.Reliable) { ... } else if (type == RUDP.Unreliable) { ... } else { /* NOTE: it's imposible */ } printf("client received a event"); }); }); ``` ```csharp // open connection server.To.Open(new Host("127.0.0.1", 8080)); // close connection server.To.Close(); // broadcast raw data for all connected client server.To.DataBroadcast("text buffer", RUDP.Unreliable); server.To.DataBroadcast(new byte[] { 1, 2, 3 }, RUDP.Reliable); // broadcast event (netly event) for all connected client server.To.EventBroadcast("event name", "text buffer", RUDP.Unreliable); server.To.EventBroadcast("event name", new byte[] { 1, 2, 3 }, RUDP.Reliable); ```
WebSocket
πŸ“„ Client ```csharp using Netly; HTTP.WebSocket client = new HTTP.WebSocket(); ``` ```csharp client.On.Open(() => { // websocket connection opened }); client.On.Close(() => { // websocket connection closed }); client.On.Error((exception) => { // error on open websocket connectin }); client.On.Data((bytes, type) => { if (type == HTTP.Binary) { ... } else if (type == HTTP.Text) { ... } else { /* NOTE: it's imposible */ } // raw data received from server }); client.On.Event((name, bytes, type) => { if (type == HTTP.Binary) { ... } else if (type == HTTP.Text) { ... } else { /* NOTE: it's imposible */ } // event received from server }); client.On.Modify((wsSocket) => { // modify websocket socket }); ``` ```csharp // open websocket client connection client.To.Open(new Uri("ws://127.0.0.1:8080/echo")); // close websocket client connection client.To.Close(); // send raw data for server // text message client.To.Data("my message", HTTP.Text); // binnary message client.To.Data(NE.GetBytes("my buffer"), HTTP.Binary); // send event (netly event) for server // text message client.To.Event("event name", "my message", HTTP.Text); // binnary message client.To.Data("event name", NE.GetBytes("my buffer"), HTTP.Binary); ```
πŸ“„ Server ```csharp using Netly; using Netly.Interfaces; HTTP.Server server = new HTTP.Server(); IHTTP.WebSocket[] Clients = server.WebSocketClients; ``` ```csharp server.Map.WebSocket("/chat/{token}", async (req, ws) => { // Accept websocket from dynamic path string token = req.Params["token"]; // validate websocket connection from params if (Foo.Bar(token) == false) { ws.To.Close(); } ws.On.Modify(...); ws.On.Open(...); ws.On.Close(...); ws.On.Data(...); ws.On.Event(...); }); server.Map.Websocket("/echo", (req, ws) => { // Handle websocket on /echo path ws.On.Modify((wsSocket) => { // modify server-side websocket ocket }); ws.On.Open(() => { // server-side websocket connection opened }); ws.On.Close(() => { // server-side websocket connection closed }); ws.On.Data((bytes, type) => { if (type == HTTP.Binary) { ... } else if (type == HTTP.Text) { ... } else { /* NOTE: it's imposible */ } // server-side websocket received raw data }); ws.On.Event((name, bytes, type) => { if (type == HTTP.Binary) { ... } else if (type == HTTP.Text) { ... } else { /* NOTE: it's imposible */ } // server-side websocket received event }); }); ``` ```csharp server.On.Open(() => { // http server opened }); server.On.Close(() => { // http server closed }); server.On.Error((exception) => { // http server open error }); server.On.Modify((httpListener) => { // HttpListener instance, called before try open connection. }); // Open http server connection server.To.Open(new Uri("http://127.0.0.1:8080/")); // Close http server connection server.To.Close(); ``` ```csharp // open websocket client connection server.To.Open(new Uri("ws://127.0.0.1:8080/echo")); // close websocket client connection server.To.Close(); // broadcast raw data for all connected websocket socket // text message server.To.WebsocketDataBroadcast("my message", HTTP.Text); // binnary message server.To.WebsocketDataBroadcast(NE.GetBytes("my buffer"), HTTP.Binary); // broadcast event (netly event) for all connected websocket socket // text message server.To.WebsocketEventBroadcast("event name", "my message", HTTP.Text); // binnary message server.To.WebsocketEventBroadcast("event name", NE.GetBytes("my buffer"), HTTP.Binary); ```
Byter ###### For more information and details see [Byter's](https://github.com/alec1o/Byter) official information > Byter documentation: [alec1o/Byter](https://github.com/alec1o/Byter)
πŸ“„ Primitive ```csharp using Byter; ``` - Serialize _(have +20 types of data supported, e.g. enum, bool, array, list, class, struct,... [see official docs](https://github.com/alec1o/Byter)_ ```csharp Primitive primitive = new(); // add element primitive.Add.ULong(1024); // e.g. Id primitive.Add.DateTime(DateTime.UtcNow); // e.g. Sent Time primitive.Add.Struct(new Student() {...}); // e.g Student primitive.Add.Class(new Employee() {...}); // e.g Employee ... // get buffer byte[] buffer = primitive.GetBytes(); ``` - Deserialize ```csharp // WARNING: Need primitive buffer to deserialize Primitive primitive = new(...buffer); ulong id = primitive.Get.ULong(); DateTime sentTime = primitive.Get.DateTime(); Student student = primitive.Get.Struct(); Employee employee = primitive.Get.Class(); /* * NOTE: Primitive don't make exception when diserialize error, * don't need try/catch block */ if (primitive.IsValid is false) { // discart this. +1/all failed on deserialize return; } // deserialized sucessful ``` - *Dynamic Read Technical ```csharp Primitive primitive = new(...buffer); var topic = primitive.Get.Enum(); if(!primitive.IsValid) return; // discart this, topic not found. switch(topic) { case Topic.Student: { // read student info e.g. var student = primitive.Get.Struct(); ... return; } case Topic.Employee: { // read employee info e.g. var employee = primitive.Get.Class(); ... return; } default: { // discart this, topic not found. ... return; } } ``` ___ ###### Warning Primitive can serialize/deserialize complex data, e.g. (T[], List, Class, Struct, Enum).
But when you want to deserialize your (Class, Structure, List, Class/Struct[]), It must have: - (generic and public constructor: is a public constructor with no arguments, e.g. which allows: ```csharp Human human = new Human(); ``` - And the class/struct property must have public access and { get; set; } or not private for example. (In byter programming, _ONLY PROPERTIES THAT CAN BE READ AND WRITTEN WILL BE SERIALIZED AND DESERIALIZED)_ ```csharp // valid public string Name; public string Name { get; set; } internal string Name; // !!! if visible from Byter internal string Name { get; set; }; // !!! if visible from Byter // invalid private string Name; private string Name { get; set; } internal string Name; // !!! if unvisible from Byter internal string Name { get; set; }; // !!! if unvisible from Byter ``` ___ ###### Example - Sample of complex data ```cs public class Human { public BigInteger IdNumber { get; set; } public string FirstName { get; set; } public string LastName { get; set; } public DateTime DateOfBirth { get; set; } public GenderType Gender { get; set; } // enum public byte[] Picture { get; set; } } public class Employee { public Human Human { get; set; } public string Position { get; set; } public DateTime HireDate { get; set; } public int YearsOfService { get; set; } } public struct Student { public string Major { get; set; } public DateTime EnrollmentDate { get; set; } public List Books { get; set; } } public class Book { public string Title { get; set; } public string Author { get; set; } public string ISBN { get; set; } public int PublicationYear { get; set; } public string Publisher { get; set; } public decimal Price { get; set; } } ```
πŸ“„ Extension ```csharp using Byter; ``` - Global Default Encoding [(source code spec)](https://github.com/alec1o/Byter/blob/main/src/src/extension/StringExtension.cs#L8) ```csharp // update global defaut encoding. Default is UTF8 StringExtension.Default = Encoding.Unicode; // Unicode is UTF16 ``` - Convert string to byte[] ```csharp // using global encoding (*UTF8) byte[] username = "@alec1o".GetBytes(); // using UNICODE (*UTF16) encoding byte[] message = "Hello πŸ‘‹ World 🌎".GetBytes(Encoding.Unicode); // using UTF32 encoding string secreatWord = "I'm not human, I'm a concept."; byte[] secreat = secreatWord.GetBytes(Encoding.UTF32); ``` - Convert byte[] to string ```csharp // using global encoding (*UTF8) string username = new byte[] { ... }.GetString(); // using UNICODE (*UTF16) encoding string message = new byte[] { ... }.GetString(Encoding.Unicode); // using UTF32 encoding byte[] secreat = new byte[] { ... }; string secreatWord = secreat.GetString(Encoding.UTF32); ``` - Capitalize string ```rb string name = "alECio furanZE".ToCapitalize(); # Alecio Furanze string title = "i'M noT humAn"; title = title.ToCapitalize(); # I'm Not Human ``` - UpperCase string ```rb string name = "alECio furanZE".ToUpperCase(); # ALECIO FURANZE string title = "i'M noT humAn"; title = title.ToUpperCase(); # I'M NOT HUMAN ``` - LowerCase string ```rb string name = "ALEciO FUraNZE".ToLowerCase(); # alecio furanze string title = "i'M Not huMAN"; title = title.ToLowerCase(); # i'm not human ```


Usage

Integration and interaction example codes

Standard
πŸ“„ Console ```csharp using System; using Netly; public class Program { private static void Main(string[] args) { UDP.Client client = new UDP.Client(); client.On.Open(() => { Console.WriteLine(); }; client.On.Close(() => { Console.WriteLine(); }; client.On.Error((exception) => { Console.WriteLine(); }; while(true) { if(!client.IsOpened) { client.To.Open(new Host("1.1.1.1", 1111)); } else { Console.WriteLine("Message: "); string message = Console.ReadLine(); client.To.Data(message ?? "No message.", NE.Encoding.UTF8); } } } } ```
Flax Engine
πŸ“„ Script ```csharp using System; using FlaxEngine; using Netly; public class Example : Script { public string message; internal UDP.Client client; public override void Awake() { client = new UDP.Client(); client.On.Open(() => { Debug.Log(); }; client.On.Close(() => { Debug.Log(); }; client.On.Error((exception) => { Debug.Log(); }; } public override void Start() { client.To.Open(new Host("1.1.1.1", 1111)); } public override void Update() { if(!client.IsOpened) { client.To.Open(new Host("1.1.1.1", 1111)); } else { if (Input.GetKeyDown(KeyCode.Space)) { client.To.Data(message ?? "No message.", NE.Encoding.UTF8); } } } } ```
Unity Engine
πŸ“„ MonoBehaviour ```csharp using System; using FlaxEngine; using Netly; public class Example : MonoBehaviour { public string message; internal UDP.Client client; private void Awake() { client = new UDP.Client(); client.On.Open(() => { Debug.Log(); }; client.On.Close(() => { Debug.Log(); }; client.On.Error((exception) => { Debug.Log(); }; } private void Start() { client.To.Open(new Host("1.1.1.1", 1111)); } private void Update() { if(!client.IsOpened) { client.To.Open(new Host("1.1.1.1", 1111)); } else { if (Input.GetKeyDown(KeyCode.Space)) { client.To.Data(message ?? "No message.", NE.Encoding.UTF8); } } } } ```
WARNING: You should never initialize events in an uncontrolled loop, (**.On) stores functions that will be called when something happens and these functions only need to be initialized once. Understand, It doesn't mean that every event will only have one callback attached to it, but it means not to keep calling (**.On) frequently like in Loops. See examples below of good and bad use.

For methods (**.To) there is an internal barrier that limits things like (trying to open or close connections several times, sending data with a disconnected socket, ...) although these methods do not cause problems when called in a loop, it is always good have the action and state in sync, for example only sending data when confirming that the connection is open.

πŸ“„ Code ```csharp using System; using Netly; private HTTP.WebSocket ws; ``` ```csharp // OK private void Init() { ws.On.Open(() => { ... }); ws.On.Event((name, bytes) => { ... }); ws.On.Event((name, bytes) => { if (name == "foo") { ... } }); ws.On.Event((name, bytes) => { if (name == "bar") { ... } }); } ``` ```csharp // BAD public void Loop() { client.To.Open(...); // [OK] client.To.Data(...); // [OK] client.To.Event(...); // [OK] client.To.Close(...); // [OK] ws.On.Open(() => { ... }); // [NEVER IN LOOP] ws.On.Close(() => { ... }); // [NEVER IN LOOP] ws.On.Data((bytes) => { ... }); // [NEVER IN LOOP] ws.On.Error((exception) => { ... }); // [NEVER IN LOOP] ws.On.Event((name, bytes) => { ... }); // [NEVER IN LOOP] } ```