mirror of
https://github.com/KevinMidboe/zoff.git
synced 2025-10-29 18:00:23 +00:00
Started on node.js+socket.io+mongoDB on the backend for more responsivnes
This commit is contained in:
KasperRT
374
server/node_modules/socket.io/Readme.md
generated
vendored
Executable file
374
server/node_modules/socket.io/Readme.md
generated
vendored
Executable file
@@ -0,0 +1,374 @@
|
||||
|
||||
# socket.io
|
||||
|
||||
[](http://travis-ci.org/Automattic/socket.io)
|
||||
|
||||
|
||||
|
||||
## How to use
|
||||
|
||||
The following example attaches socket.io to a plain Node.JS
|
||||
HTTP server listening on port `3000`.
|
||||
|
||||
```js
|
||||
var server = require('http').createServer();
|
||||
var io = require('socket.io')(server);
|
||||
io.on('connection', function(socket){
|
||||
socket.on('event', function(data){});
|
||||
socket.on('disconnect', function(){});
|
||||
});
|
||||
server.listen(3000);
|
||||
```
|
||||
|
||||
### Standalone
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
io.on('connection', function(socket){});
|
||||
io.listen(3000);
|
||||
```
|
||||
|
||||
### In conjunction with Express
|
||||
|
||||
Starting with **3.0**, express applications have become request handler
|
||||
functions that you pass to `http` or `http` `Server` instances. You need
|
||||
to pass the `Server` to `socket.io`, and not the express application
|
||||
function.
|
||||
|
||||
```js
|
||||
var app = require('express')();
|
||||
var server = require('http').createServer(app);
|
||||
var io = require('socket.io')(server);
|
||||
io.on('connection', function(){ /* … */ });
|
||||
server.listen(3000);
|
||||
```
|
||||
|
||||
### In conjunction with Koa
|
||||
|
||||
Like Express.JS, Koa works by exposing an application as a request
|
||||
handler function, but only by calling the `callback` method.
|
||||
|
||||
```js
|
||||
var app = require('koa')();
|
||||
var server = require('http').createServer(app.callback());
|
||||
var io = require('socket.io')(server);
|
||||
io.on('connection', function(){ /* … */ });
|
||||
server.listen(3000);
|
||||
```
|
||||
|
||||
## API
|
||||
|
||||
### Server
|
||||
|
||||
Exposed by `require('socket.io')`.
|
||||
|
||||
### Server()
|
||||
|
||||
Creates a new `Server`. Works with and without `new`:
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
// or
|
||||
var Server = require('socket.io');
|
||||
var io = new Server();
|
||||
```
|
||||
|
||||
### Server(opts:Object)
|
||||
|
||||
Optionally, the first or second argument (see below) of the `Server`
|
||||
constructor can be an options object.
|
||||
|
||||
The following options are supported:
|
||||
|
||||
- `serveClient` sets the value for Server#serveClient()
|
||||
- `path` sets the value for Server#path()
|
||||
|
||||
The same options passed to socket.io are always passed to
|
||||
the `engine.io` `Server` that gets created. See engine.io
|
||||
[options](https://github.com/learnboost/engine.io#methods-1)
|
||||
as reference.
|
||||
|
||||
### Server(srv:http#Server, opts:Object)
|
||||
|
||||
Creates a new `Server` and attaches it to the given `srv`. Optionally
|
||||
`opts` can be passed.
|
||||
|
||||
### Server(port:Number, opts:Object)
|
||||
|
||||
Binds socket.io to a new `http.Server` that listens on `port`.
|
||||
|
||||
### Server#serveClient(v:Boolean):Server
|
||||
|
||||
If `v` is `true` the attached server (see `Server#attach`) will serve
|
||||
the client files. Defaults to `true`.
|
||||
|
||||
This method has no effect after `attach` is called.
|
||||
|
||||
```js
|
||||
// pass a server and the `serveClient` option
|
||||
var io = require('socket.io')(http, { serveClient: false });
|
||||
|
||||
// or pass no server and then you can call the method
|
||||
var io = require('socket.io')();
|
||||
io.serveClient(false);
|
||||
io.attach(http);
|
||||
```
|
||||
|
||||
If no arguments are supplied this method returns the current value.
|
||||
|
||||
### Server#path(v:String):Server
|
||||
|
||||
Sets the path `v` under which `engine.io` and the static files will be
|
||||
served. Defaults to `/socket.io`.
|
||||
|
||||
If no arguments are supplied this method returns the current value.
|
||||
|
||||
### Server#adapter(v:Adapter):Server
|
||||
|
||||
Sets the adapter `v`. Defaults to an instance of the `Adapter` that
|
||||
ships with socket.io which is memory based. See
|
||||
[socket.io-adapter](https://github.com/Automattic/socket.io-adapter).
|
||||
|
||||
If no arguments are supplied this method returns the current value.
|
||||
|
||||
### Server#origins(v:String):Server
|
||||
|
||||
Sets the allowed origins `v`. Defaults to any origins being allowed.
|
||||
|
||||
If no arguments are supplied this method returns the current value.
|
||||
|
||||
### Server#origins(v:Function):Server
|
||||
|
||||
Sets the allowed origins as dynamic function. Function takes two arguments `origin:String` and `callback(error, success)`, where `success` is a boolean value indicating whether origin is allowed or not.
|
||||
|
||||
__Potential drawbacks__:
|
||||
* in some situations, when it is not possible to determine `origin` it may have value of `*`
|
||||
* As this function will be executed for every request, it is advised to make this function work as fast as possible
|
||||
* If `socket.io` is used together with `Express`, the CORS headers will be affected only for `socket.io` requests. For Express can use [cors](https://github.com/troygoode/node-cors/)
|
||||
|
||||
|
||||
### Server#sockets:Namespace
|
||||
|
||||
The default (`/`) namespace.
|
||||
|
||||
### Server#attach(srv:http#Server, opts:Object):Server
|
||||
|
||||
Attaches the `Server` to an engine.io instance on `srv` with the
|
||||
supplied `opts` (optionally).
|
||||
|
||||
### Server#attach(port:Number, opts:Object):Server
|
||||
|
||||
Attaches the `Server` to an engine.io instance that is bound to `port`
|
||||
with the given `opts` (optionally).
|
||||
|
||||
### Server#listen
|
||||
|
||||
Synonym of `Server#attach`.
|
||||
|
||||
### Server#bind(srv:engine#Server):Server
|
||||
|
||||
Advanced use only. Binds the server to a specific engine.io `Server`
|
||||
(or compatible API) instance.
|
||||
|
||||
### Server#onconnection(socket:engine#Socket):Server
|
||||
|
||||
Advanced use only. Creates a new `socket.io` client from the incoming
|
||||
engine.io (or compatible API) `socket`.
|
||||
|
||||
### Server#of(nsp:String):Namespace
|
||||
|
||||
Initializes and retrieves the given `Namespace` by its pathname
|
||||
identifier `nsp`.
|
||||
|
||||
If the namespace was already initialized it returns it right away.
|
||||
|
||||
### Server#emit
|
||||
|
||||
Emits an event to all connected clients. The following two are
|
||||
equivalent:
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
io.sockets.emit('an event sent to all connected clients');
|
||||
io.emit('an event sent to all connected clients');
|
||||
```
|
||||
|
||||
For other available methods, see `Namespace` below.
|
||||
|
||||
### Server#close
|
||||
|
||||
Closes socket server
|
||||
|
||||
```js
|
||||
var Server = require('socket.io');
|
||||
var PORT = 3030;
|
||||
var server = require('http').Server();
|
||||
|
||||
var io = Server(PORT);
|
||||
|
||||
io.close(); // Close current server
|
||||
|
||||
server.listen(PORT); // PORT is free to use
|
||||
|
||||
io = Server(server);
|
||||
```
|
||||
|
||||
### Server#use
|
||||
|
||||
See `Namespace#use` below.
|
||||
|
||||
### Namespace
|
||||
|
||||
Represents a pool of sockets connected under a given scope identified
|
||||
by a pathname (eg: `/chat`).
|
||||
|
||||
By default the client always connects to `/`.
|
||||
|
||||
#### Events
|
||||
|
||||
- `connection` / `connect`. Fired upon a connection.
|
||||
|
||||
Parameters:
|
||||
- `Socket` the incoming socket.
|
||||
|
||||
### Namespace#name:String
|
||||
|
||||
The namespace identifier property.
|
||||
|
||||
### Namespace#connected:Object<Socket>
|
||||
|
||||
Hash of `Socket` objects that are connected to this namespace indexed
|
||||
by `id`.
|
||||
|
||||
### Namespace#use(fn:Function):Namespace
|
||||
|
||||
Registers a middleware, which is a function that gets executed for
|
||||
every incoming `Socket` and receives as parameter the socket and a
|
||||
function to optionally defer execution to the next registered
|
||||
middleware.
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
io.use(function(socket, next){
|
||||
if (socket.request.headers.cookie) return next();
|
||||
next(new Error('Authentication error'));
|
||||
});
|
||||
```
|
||||
|
||||
Errors passed to middleware callbacks are sent as special `error`
|
||||
packets to clients.
|
||||
|
||||
### Socket
|
||||
|
||||
A `Socket` is the fundamental class for interacting with browser
|
||||
clients. A `Socket` belongs to a certain `Namespace` (by default `/`)
|
||||
and uses an underlying `Client` to communicate.
|
||||
|
||||
### Socket#rooms:Array
|
||||
|
||||
A list of strings identifying the rooms this socket is in.
|
||||
|
||||
### Socket#client:Client
|
||||
|
||||
A reference to the underlying `Client` object.
|
||||
|
||||
### Socket#conn:Socket
|
||||
|
||||
A reference to the underlying `Client` transport connection (engine.io
|
||||
`Socket` object).
|
||||
|
||||
### Socket#request:Request
|
||||
|
||||
A getter proxy that returns the reference to the `request` that
|
||||
originated the underlying engine.io `Client`. Useful for accessing
|
||||
request headers such as `Cookie` or `User-Agent`.
|
||||
|
||||
### Socket#id:String
|
||||
|
||||
A unique identifier for the socket session, that comes from the
|
||||
underlying `Client`.
|
||||
|
||||
### Socket#emit(name:String[, …]):Socket
|
||||
|
||||
Emits an event to the socket identified by the string `name`. Any
|
||||
other parameters can be included.
|
||||
|
||||
All datastructures are supported, including `Buffer`. JavaScript
|
||||
functions can't be serialized/deserialized.
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
io.on('connection', function(socket){
|
||||
socket.emit('an event', { some: 'data' });
|
||||
});
|
||||
```
|
||||
|
||||
### Socket#join(name:String[, fn:Function]):Socket
|
||||
|
||||
Adds the socket to the `room`, and fires optionally a callback `fn`
|
||||
with `err` signature (if any).
|
||||
|
||||
The socket is automatically a member of a room identified with its
|
||||
session id (see `Socket#id`).
|
||||
|
||||
The mechanics of joining rooms are handled by the `Adapter`
|
||||
that has been configured (see `Server#adapter` above), defaulting to
|
||||
[socket.io-adapter](https://github.com/Automattic/socket.io-adapter).
|
||||
|
||||
### Socket#leave(name:String[, fn:Function]):Socket
|
||||
|
||||
Removes the socket from `room`, and fires optionally a callback `fn`
|
||||
with `err` signature (if any).
|
||||
|
||||
**Rooms are left automatically upon disconnection**.
|
||||
|
||||
The mechanics of leaving rooms are handled by the `Adapter`
|
||||
that has been configured (see `Server#adapter` above), defaulting to
|
||||
[socket.io-adapter](https://github.com/Automattic/socket.io-adapter).
|
||||
|
||||
### Socket#to(room:String):Socket
|
||||
### Socket#in(room:String):Socket
|
||||
|
||||
Sets a modifier for a subsequent event emission that the event will
|
||||
only be _broadcasted_ to sockets that have joined the given `room`.
|
||||
|
||||
To emit to multiple rooms, you can call `to` several times.
|
||||
|
||||
```js
|
||||
var io = require('socket.io')();
|
||||
io.on('connection', function(socket){
|
||||
socket.to('others').emit('an event', { some: 'data' });
|
||||
});
|
||||
```
|
||||
|
||||
### Client
|
||||
|
||||
The `Client` class represents an incoming transport (engine.io)
|
||||
connection. A `Client` can be associated with many multiplexed `Socket`
|
||||
that belong to different `Namespace`s.
|
||||
|
||||
### Client#conn
|
||||
|
||||
A reference to the underlying `engine.io` `Socket` connection.
|
||||
|
||||
### Client#request
|
||||
|
||||
A getter proxy that returns the reference to the `request` that
|
||||
originated the engine.io connection. Useful for accessing
|
||||
request headers such as `Cookie` or `User-Agent`.
|
||||
|
||||
## Debug / logging
|
||||
|
||||
Socket.IO is powered by [debug](http://github.com/visionmedia/debug).
|
||||
In order to see all the debug output, run your app with the environment variable
|
||||
`DEBUG` including the desired scope.
|
||||
|
||||
To see the output from all of Socket.IO's debugging scopes you can use:
|
||||
|
||||
```
|
||||
DEBUG=socket.io* node myapp
|
||||
```
|
||||
|
||||
## License
|
||||
|
||||
MIT
|
||||
Reference in New Issue
Block a user