Alex Potsides 199395de4d
feat: convert to typescript (#1172)
Converts this module to typescript.

- Ecosystem modules renamed from (e.g.) `libp2p-tcp` to `@libp2p/tcp`
- Ecosystem module now have named exports
- Configuration has been updated, now pass instances of modules instead of classes:
- Some configuration keys have been renamed to make them more descriptive.  `transport` -> `transports`, `connEncryption` -> `connectionEncryption`.  In general where we pass multiple things, the key is now plural, e.g. `streamMuxer` -> `streamMuxers`, `contentRouting` -> `contentRouters`, etc.  Where we are configuring a singleton the config key is singular, e.g. `connProtector` -> `connectionProtector` etc.
- Properties of the `modules` config key have been moved to the root
- Properties of the `config` config key have been moved to the root
```js
// before
import Libp2p from 'libp2p'
import TCP from 'libp2p-tcp'

await Libp2p.create({
  modules: {
    transport: [
      TCP
    ],
  }
  config: {
    transport: {
      [TCP.tag]: {
        foo: 'bar'
      }
    },
    relay: {
      enabled: true,
      hop: {
        enabled: true,
        active: true
      }
    }
  }
})
```
```js
// after
import { createLibp2p } from 'libp2p'
import { TCP } from '@libp2p/tcp'

await createLibp2p({
  transports: [
    new TCP({ foo: 'bar' })
  ],
  relay: {
    enabled: true,
    hop: {
      enabled: true,
      active: true
    }
  }
})
```
- Use of `enabled` flag has been reduced - previously you could pass a module but disable it with config.  Now if you don't want a feature, just don't pass an implementation.   Eg:
```js
// before
await Libp2p.create({
  modules: {
    transport: [
      TCP
    ],
    pubsub: Gossipsub
  },
  config: {
    pubsub: {
      enabled: false
    }
  }
})
```
```js
// after
await createLibp2p({
  transports: [
    new TCP()
  ]
})
```
- `.multiaddrs` renamed to `.getMultiaddrs()` because it's not a property accessor, work is done by that method to calculate announce addresses, observed addresses, etc
- `/p2p/${peerId}` is now appended to all addresses returned by `.getMultiaddrs()` so they can be used opaquely (every consumer has to append the peer ID to the address to actually use it otherwise).  If you need low-level unadulterated addresses, call methods on the address manager.

BREAKING CHANGE: types are no longer hand crafted, this module is now ESM only
2022-03-28 14:30:27 +01:00

78 lines
2.5 KiB
JavaScript

import { createLibp2p } from 'libp2p'
import { WebSockets } from '@libp2p/websockets'
import { WebRTCStar } from '@libp2p/webrtc-star'
import { Noise } from '@chainsafe/libp2p-noise'
import { Mplex } from '@libp2p/mplex'
import { Bootstrap } from '@libp2p/bootstrap'
document.addEventListener('DOMContentLoaded', async () => {
const webRtcStar = new WebRTCStar()
// Create our libp2p node
const libp2p = await createLibp2p({
addresses: {
// Add the signaling server address, along with our PeerId to our multiaddrs list
// libp2p will automatically attempt to dial to the signaling server so that it can
// receive inbound connections from other peers
listen: [
'/dns4/wrtc-star1.par.dwebops.pub/tcp/443/wss/p2p-webrtc-star',
'/dns4/wrtc-star2.sjc.dwebops.pub/tcp/443/wss/p2p-webrtc-star'
]
},
transports: [
new WebSockets(),
webRtcStar
],
connectionEncryption: [new Noise()],
streamMuxers: [new Mplex()],
peerDiscovery: [
webRtcStar.discovery,
new Bootstrap({
list: [
'/dnsaddr/bootstrap.libp2p.io/p2p/QmNnooDu7bfjPFoTZYxMNLWUQJyrVwtbZg5gBMjTezGAJN',
'/dnsaddr/bootstrap.libp2p.io/p2p/QmbLHAnMoJPWSCR5Zhtx6BHJX9KiKNN6tpvbUcqanj75Nb',
'/dnsaddr/bootstrap.libp2p.io/p2p/QmZa1sAxajnQjVM8WjWXoMbmPd7NsWhfKsPkErzpm9wGkp',
'/dnsaddr/bootstrap.libp2p.io/p2p/QmQCU2EcMqAqQPR2i9bChDtGNJchTbq5TbXJJ16u19uLTa',
'/dnsaddr/bootstrap.libp2p.io/p2p/QmcZf59bWwK5XFi76CZX8cbJ4BhTzzA3gU1ZjYZcYW3dwt'
]
})
]
})
// UI elements
const status = document.getElementById('status')
const output = document.getElementById('output')
output.textContent = ''
function log (txt) {
console.info(txt)
output.textContent += `${txt.trim()}\n`
}
// Listen for new peers
libp2p.addEventListener('peer:discovery', (evt) => {
const peer = evt.detail
log(`Found peer ${peer.id.toString()}`)
})
// Listen for new connections to peers
libp2p.connectionManager.addEventListener('peer:connect', (evt) => {
const connection = evt.detail
log(`Connected to ${connection.remotePeer.toString()}`)
})
// Listen for peers disconnecting
libp2p.connectionManager.addEventListener('peer:disconnect', (evt) => {
const connection = evt.detail
log(`Disconnected from ${connection.remotePeer.toString()}`)
})
await libp2p.start()
status.innerText = 'libp2p started!'
log(`libp2p id is ${libp2p.peerId.toString()}`)
// Export libp2p to the window so you can play with the API
window.libp2p = libp2p
})