js-libp2p-websocket-star-multi
所属分类：JavaScript/JQuery
开发工具：JavaScript
文件大小：13KB
下载次数：0
上传日期：2020-06-10 10:37:26
上 传 者：
sh-1993
说明： 允许在多个websocket星形服务器上侦听，同时忽略脱机服务器
(Allows to listen on multiple websocket-star servers while ignoring offline ones)
文件列表:
.aegir.js (719, 2020-06-10)
.jshintrc (70, 2020-06-10)
.travis.yml (381, 2020-06-10)
CHANGELOG.md (2387, 2020-06-10)
appveyor.yml (429, 2020-06-10)
example.js (1796, 2020-06-10)
package.json (1569, 2020-06-10)
src (0, 2020-06-10)
src\index.js (2700, 2020-06-10)
test (0, 2020-06-10)
test\.jshintrc (87, 2020-06-10)
test\ids.json (6308, 2020-06-10)
test\listen-and-dial.spec.js (4240, 2020-06-10)
DEPRECATED: libp2p-websocket-star-multi is not supported anymore from [libp2p@0.27.0](https://github.com/libp2p/js-libp2p/releases/tag/v0.27.0). Check [js-libp2p/doc/CONFIGURATION.md](https://github.com/libp2p/js-libp2p/blob/master/doc/CONFIGURATION.md) for what modules are currently supported.
# libp2p-websocket-star-multi
[](http://ipn.io)
[](https://travis-ci.org/libp2p/js-libp2p-websocket-star)
> Allows to listen on multiple websocket-star-rendezvous servers while ignoring offline ones
## Description
`libp2p-websocket-star-multi` allows to listen on multiple websocket-star-rendezvous servers while ignoring offline ones
**Note:** This module uses [pull-streams](https://pull-stream.github.io) for all stream based interfaces.
## Usage
### Installation
```bash
> npm install libp2p-websocket-star
```
### API
[](https://github.com/libp2p/interface-transport)
### Example
```js
'use strict'
const Libp2p = require('libp2p')
const Id = require('peer-id')
const Info = require('peer-info')
const multiaddr = require('multiaddr')
const pull = require('pull-stream')
const WSStarMulti = require('libp2p-websocket-star-multi')
Id.create((err, id) => {
if (err) throw err
const peerInfo = new Info(id)
peerInfo.multiaddrs.add(multiaddr('/p2p-websocket-star')) // will get replaced to the multiaddr of the individual servers
const ws = new WSStarMulti({
servers: [ // servers are Multiaddr[]
'/dnsaddr/ws-star-signal-1.servep2p.com/tcp/443/wss/p2p-websocket-star',
'/dnsaddr/ws-star-signal-2.servep2p.com/tcp/443/wss/p2p-websocket-star',
'/dnsaddr/ws-star-signal-3.servep2p.com/tcp/443/wss/p2p-websocket-star',
'/dnsaddr/ws-star-signal-4.servep2p.com/tcp/443/wss/p2p-websocket-star',
'/dnsaddr/ws-star.discovery.libp2p.io/tcp/443/wss/p2p-websocket-star',
'/dns4/localhost/tcp/80/ws/p2p-websocket-star'
],
// ignore_no_online: true, // enable this to prevent wstar-multi from returning a listen error if no servers are online
id // the id is required for the crypto challenge
})
const modules = {
transport: [
ws
],
discovery: [
ws.discovery
]
}
const node = new Libp2p(modules, peerInfo)
node.handle('/test/1.0.0', (protocol, conn) => {
pull(
pull.values(['hello']),
conn,
pull.map((s) => s.toString()),
pull.log()
)
})
node.start((err) => {
if (err) {
throw err
}
node.dial(peerInfo, '/test/1.0.0', (err, conn) => {
if (err) {
throw err
}
pull(
pull.values(['hello from the other side']),
conn,
pull.map((s) => s.toString()),
pull.log()
)
})
})
})
```
Outputs:
```
hello
hello from the other side
```
### This module uses `pull-streams`
We expose a streaming interface based on `pull-streams`, rather then on the Node.js core streams implementation (aka Node.js streams). `pull-streams` offers us a better mechanism for error handling and flow control guarantees. If you would like to know more about why we did this, see the discussion at this [issue](https://github.com/ipfs/js-ipfs/issues/362).
You can learn more about pull-streams at:
- [The history of Node.js streams, nodebp April 2014](https://www.youtube.com/watch?v=g5ewQEuXjsQ)
- [The history of streams, 2016](http://dominictarr.com/post/145135293917/history-of-streams)
- [pull-streams, the simple streaming primitive](http://dominictarr.com/post/149248845122/pull-streams-pull-streams-are-a-very-simple)
- [pull-streams documentation](https://pull-stream.github.io/)
#### Converting `pull-streams` to Node.js Streams
If you are a Node.js streams user, you can convert a pull-stream to a Node.js stream using the module [`pull-stream-to-stream`](https://github.com/pull-stream/pull-stream-to-stream), giving you an instance of a Node.js stream that is linked to the pull-stream. For example:
```js
const pullToStream = require('pull-stream-to-stream')
const nodeStreamInstance = pullToStream(pullStreamInstance)
// nodeStreamInstance is an instance of a Node.js Stream
```
To learn more about this utility, visit https://pull-stream.github.io/#pull-stream-to-stream.
LICENSE MIT
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