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https://github.com/agamnentzar/ag-sockets

Library for communication via WebSockets
https://github.com/agamnentzar/ag-sockets

communication javascript-library typescript websockets

Last synced: 8 months ago
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Library for communication via WebSockets

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# ag-sockets

[![Build Status](https://travis-ci.org/Agamnentzar/ag-sockets.svg)](https://travis-ci.org/Agamnentzar/ag-sockets)
[![npm version](https://badge.fury.io/js/ag-sockets.svg)](https://badge.fury.io/js/ag-sockets)

Library for communication via WebSockets

## Installation

```bash
npm install ag-sockets
npm install ws # peer dependency
```

## Usage

### Using with [µWebSockets](https://github.com/uWebSockets/uWebSockets)

```
npm install uws
```

```typescript
import * as uws from 'uws';
import { createServer } from 'ag-sockets';

// ...
const wsServer = createServer(..., { ws: uws, arrayBuffer: true });
```

### Set up sockets

#### Common interfaces

```typescript
// interfaces.ts

import { SocketClient, SocketServer } from 'ag-sockets';

export interface IExampleClient extends SocketClient {
message(name: string, message: string);
}

export interface IExampleServer extends SocketServer {
connected(): void;
diconnected(): void;
broadcast(message: string): void;
setName(name: string): void;
}
```

#### Client object

```typescript
// client.ts

import { Method } from 'ag-sockets';
import { IExampleClient, IExampleServer } from './interfaces';

export class ExampleClient implements IExampleClient {
constructor(private server: IExampleServer) {
}
connected() {
this.server.setName('John');
this.server.broadcast('Hello!');
}
@Method()
message(name: string, message: string) {
console.log(`${name}: ${message}`);
}
}
```

#### Server object

```typescript
// server.ts

import { Method, Socket, ClientExtensions } from 'ag-sockets';
import { IExampleClient, IExampleServer } from './interfaces';

const clients: ExampleClient[] = [];

@Socket({ path: '/test' })
export class ExampleServer implements IExampleServer {
private name: string;
constructor(private client: IExampleClient & ClientExtensions) {
}
connected() {
clients.push(this.client);
}
disconnected() {
clients.splice(clients.indexOf(this.client), 1);
}
@Method() // annotations are optional if all class methods are to be available
broadcast(message: string) {
clients.forEach(c => c.message(this.name, message));
}
@Method()
setName(name: string) {
this.name = name;
}
}
```

#### Start server

```typescript
import * as http from 'http';
import { createServer } from 'ag-sockets';
import { ExampleClient } from './client';
import { ExampleServer } from './server';

const server = http.createServer();
const wsServer = createServer(server, ExampleServer, ExampleClient, client => new Server(client));

// pass 'wsServer.options()' to client side

server.listen(12345, () => console.log('server listening...'));
```

#### Connect client

```typescript
import { createClientSocket } from 'ag-sockets';
import { ExampleClient } from './client';
import { IExampleClient, IExampleServer } from './interfaces';

const options = // get 'wsServer.options()' from server side
const service = createClientSocket(options);
service.client = new ExampleClient(service.server);
service.connect();
```

### Binary communication

```typescript
export const enum Bin {
I8,
U8,
I16,
U16,
I32,
U32,
F32,
F64,
Bool,
Str,
Obj,
}

// examples

class Client {
@Method({ binary: [Bin.I32, Bin.Str] })
foo(a: number, b: string) {
}
@Method({ binary: [[Bin.I32], [Bin.I32, Bin.I32, Bin.I32]] })
bar(a: number[], b: [number, number, number][]) {
}
@Method({ binary: [[Bin.F32], Bin.Obj] })
boo(a: number[], b: any) {
}
}
```

## Development

```bash
gulp build # build production version of code

gulp dev # build and start watch tasks
gulp dev --tests # build and start watch tasks with tests
gulp dev --coverage # build and start watch tasks with tests and code coverage

gulp lint # typescript lint
```