mirror of
https://github.com/fluencelabs/js-libp2p
synced 2025-04-02 07:41:05 +00:00
199395de4d
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
86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
/* eslint-disable no-console */
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import { createLibp2p } from 'libp2p'
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import { TCP } from '@libp2p/tcp'
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import { WebSockets } from '@libp2p/websockets'
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import { Noise } from '@chainsafe/libp2p-noise'
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import { Mplex } from '@libp2p/mplex'
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import { pipe } from 'it-pipe'
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import { toString as uint8ArrayToString } from 'uint8arrays/to-string'
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import { fromString as uint8ArrayFromString } from 'uint8arrays/from-string'
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const createNode = async (transports, addresses = []) => {
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if (!Array.isArray(addresses)) {
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addresses = [addresses]
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}
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const node = await createLibp2p({
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addresses: {
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listen: addresses
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},
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transports: transports,
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connectionEncryption: [new Noise()],
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streamMuxers: [new Mplex()]
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})
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await node.start()
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return node
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}
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function printAddrs(node, number) {
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console.log('node %s is listening on:', number)
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node.getMultiaddrs().forEach((ma) => console.log(ma.toString()))
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}
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function print ({ stream }) {
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pipe(
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stream,
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async function (source) {
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for await (const msg of source) {
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console.log(uint8ArrayToString(msg))
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}
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}
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)
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}
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;(async () => {
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const [node1, node2, node3] = await Promise.all([
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createNode([new TCP()], '/ip4/0.0.0.0/tcp/0'),
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createNode([new TCP(), new WebSockets()], ['/ip4/0.0.0.0/tcp/0', '/ip4/127.0.0.1/tcp/10000/ws']),
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createNode([new WebSockets()], '/ip4/127.0.0.1/tcp/20000/ws')
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])
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printAddrs(node1, '1')
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printAddrs(node2, '2')
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printAddrs(node3, '3')
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node1.handle('/print', print)
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node2.handle('/print', print)
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node3.handle('/print', print)
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await node1.peerStore.addressBook.set(node2.peerId, node2.getMultiaddrs())
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await node2.peerStore.addressBook.set(node3.peerId, node3.getMultiaddrs())
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await node3.peerStore.addressBook.set(node1.peerId, node1.getMultiaddrs())
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// node 1 (TCP) dials to node 2 (TCP+WebSockets)
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const { stream } = await node1.dialProtocol(node2.peerId, '/print')
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await pipe(
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[uint8ArrayFromString('node 1 dialed to node 2 successfully')],
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stream
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)
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// node 2 (TCP+WebSockets) dials to node 2 (WebSockets)
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const { stream: stream2 } = await node2.dialProtocol(node3.peerId, '/print')
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await pipe(
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[uint8ArrayFromString('node 2 dialed to node 3 successfully')],
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stream2
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)
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// node 3 (listening WebSockets) can dial node 1 (TCP)
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try {
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await node3.dialProtocol(node1.peerId, '/print')
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} catch (err) {
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console.log('node 3 failed to dial to node 1 with:', err.message)
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}
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})();
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