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Top 10 Examples of "hypercore in functional component" in JavaScript

Dive into secure and efficient coding practices with our curated list of the top 10 examples showcasing 'hypercore' in functional components in JavaScript. Our advanced machine learning engine meticulously scans each line of code, cross-referencing millions of open source libraries to ensure your implementation is not just functional, but also robust and secure. Elevate your React applications to new heights by mastering the art of handling side effects, API calls, and asynchronous operations with confidence and precision.

process.env["DEBUG"] = "*"

import DiscoveryCloudClient from "./Client"
import { Stream } from "stream"
import * as Debug from "debug"
let hypercore = require("hypercore")
let crypto = require("hypercore/lib/crypto")
let ram = require("random-access-memory")

const log1 = Debug("discovery-cloud:test:client1")
const log2 = Debug("discovery-cloud:test:client2")

const url = "wss://discovery-cloud.herokuapp.com"
// const url = "ws://0.0.0.0:8080"
const keys = crypto.keyPair()

const feed1 = hypercore(ram, keys.publicKey, { secretKey: keys.secretKey })
const feed2 = hypercore(ram, keys.publicKey)

const client1 = new DiscoveryCloudClient({
  id: crypto.randomBytes(32),
  url,
  stream: info => feed1.replicate(info),
})

feed1.on("ready", () => {
  client1.join(feed1.discoveryKey)
  log1("joining")
  feed1.append("foo")
  feed1.append("bar")
  feed1.append("baz")
import { FrontendHandle } from "../../modules/hypermerge/frontend"
import { Doc, AnyEditDoc, EditDoc, AnyDoc } from "automerge/frontend"
import * as Debug from "debug"
const log = Debug("discovery-cloud:test")
let ram = require("random-access-memory")

const hm = new Hypermerge({ storage: ram })

interface Model {
  counter1?: number
  counter2?: number
}

type Handle = FrontendHandle | null

const buffers = keyPair()
const keys = {
  publicKey: Base58.encode(buffers.publicKey),
  secretKey: Base58.encode(buffers.secretKey),
}

const input = process.argv[2]

const docId = input || keys.publicKey

log("DOCID", docId)

hm.ready.then(hm => {
  swarm(hm, {
    id: hm.core.archiver.changes.id,
    url: "wss://discovery-cloud.herokuapp.com",
    // url: "ws://0.0.0.0:8080",
let hypercore = require("hypercore")
let crypto = require("hypercore/lib/crypto")
let ram = require("random-access-memory")

const log1 = Debug("discovery-cloud:test:client1")
const log2 = Debug("discovery-cloud:test:client2")

const url = "wss://discovery-cloud.herokuapp.com"
// const url = "ws://0.0.0.0:8080"
const keys = crypto.keyPair()

const feed1 = hypercore(ram, keys.publicKey, { secretKey: keys.secretKey })
const feed2 = hypercore(ram, keys.publicKey)

const client1 = new DiscoveryCloudClient({
  id: crypto.randomBytes(32),
  url,
  stream: info => feed1.replicate(info),
})

feed1.on("ready", () => {
  client1.join(feed1.discoveryKey)
  log1("joining")
  feed1.append("foo")
  feed1.append("bar")
  feed1.append("baz")
})

const client2 = new DiscoveryCloudClient({
  id: crypto.randomBytes(32),
  url,
  stream: info => feed2.replicate(info),
Archiver.prototype.createFeed = function (key, opts) {
  const self = this
  opts = opts || {}
  if (!key) {
    // create key pair
    const keyPair = crypto.keyPair()
    key = keyPair.publicKey
    opts.secretKey = keyPair.secretKey
  }
  const dk = hypercore.discoveryKey(toBuffer(key, 'hex')).toString('hex')

  if (this.feeds[dk]) {
    return this.feeds[dk]
  }

  opts.sparse = this.sparse
  const feed = hypercore(storage(key), key, opts)
  this.feeds[dk] = feed

  this.changes.append({type: 'add', key: key.toString('hex')})
  this.emit('add', feed)
createFeed(key, opts = {}) {
    this._ensureReady()
    log('createFeed', key && key.toString('hex'))

    // Create a key pair if we're making a feed from scratch.
    if (!key) {
      const keyPair = crypto.keyPair()
      key = keyPair.publicKey
      opts.secretKey = keyPair.secretKey
    }

    const dk = Hypercore.discoveryKey(toBuffer(key, 'hex')).toString('hex')

    if (this.archiver.feeds[dk]) {
      return this.archiver.feeds[dk]
    }

    opts.sparse = this.archiver.sparse
    const feed = Hypercore(this._feedStorage(key), key, opts)
    this.archiver.feeds[dk] = feed

    this.archiver.changes.append({ type: 'add', key: key.toString('hex') })
    this.archiver.emit('add', feed)
if (!opts) opts = {}

  // note: internal encoding (of the unerlying hypercore) is always binary
  this.encoding = opts.valueEncoding || 'binary'
  // copy to avoid problems with internal changes
  opts = Object.assign({}, opts)

  const self = this
  if (Buffer.isBuffer(key)) {
    key = key.toString('hex')
  }

  let registerBook = findCryptoBook()

  hypercore.call(this, createStorage, key, opts)

  this._byteLengthOffset = 0
  this.on('append', () => {
    this._byteLengthOffset = 0
  })

  if (registerBook) {
    this.on('ready', () => {
      CryptoLib.getInstance().addBook(self.key.toString('hex'), self.cryptoKeyBook)
    })
  }

  function findCryptoBook () {
    let registerBook = false
    if (typeof opts.encryptionKeyBook === 'undefined' && (typeof key === 'string' && !opts.secretKey) && !opts.noEncryption) {
      self.cryptoKeyBook = CryptoLib.getInstance().getBook(key)
tape('create with precreated keypair', function (t) {
  var crypto = require('hypercore/lib/crypto')
  var keyPair = crypto.keyPair()

  var db = create.one(keyPair.publicKey, {secretKey: keyPair.secretKey})
  db.put('hello', 'world', function (err, node) {
    t.same(node.value, 'world')
    t.error(err, 'no error')
    t.same(db.key, keyPair.publicKey, 'pubkey matches')
    db.source._storage.secretKey.read(0, keyPair.secretKey.length, function (err, secretKey) {
      t.error(err, 'no error')
      t.same(secretKey, keyPair.secretKey, 'secret key is stored')
    })
    db.get('hello', function (err, node) {
      t.error(err, 'no error')
      t.same(node.value, 'world', 'same value')
      t.end()
    })
  })
t.joinSwarm(client)

//const keys = crypto.keyPair()
//const docId = Base58.encode(keys.publicKey)

interface Foo {
  foo: string
  bar: string
  counter1: number
  counter2: number
}

const front: FrontendManager = docId
  ? t.openDocumentFrontend(docId)
  : t.createDocumentFrontend(crypto.keyPair())

let i = 1
front.on("doc", doc => {
  log("DOC", doc)
})
if (!docId) {
  front.change(doc => {
    doc.foo = "bar"
    doc.bar = "baz"
    doc.counter1 = 0
  })
}
setInterval(() => {
  front.change(doc => {
    doc.counter1 += 1
  })
t.joinSwarm(client)

//const keys = crypto.keyPair()
//const docId = Base58.encode(keys.publicKey)

interface Foo {
  foo: string
  bar: string
  counter1: number
  counter2: number
}

log("about to open", docId)
const front: FrontendManager = docId
  ? t.openDocumentFrontend(docId)
  : t.createDocumentFrontend(crypto.keyPair())

let i = 1
front.on("doc", doc => {
  log("DOC", doc)
})
/*
if (!docId) {
  front.change(doc => {
    doc.foo = "bar"
    doc.bar = "baz"
    doc.counter2 = 0
  })
}
*/
setInterval(() => {
  front.change(doc => {
MultiFeed.prototype._addFeed = function (key) {
  if (key.equals(this.local.key)) {
    if (this.feeds.indexOf(this.local) > -1) return false
    this.feeds.push(this.local)
    this.emit('add-feed', this.local)
    return true
  }

  for (var i = 0; i < this.feeds.length; i++) {
    if (this.feeds[i].key.equals(key)) return false
  }

  var dk = hypercore.discoveryKey(key).toString('hex')
  var feed = this._createFeed('feeds/' + dk.slice(0, 2) + '/' + dk.slice(2, 4) + '/' + dk.slice(4), key)

  this.feeds.push(feed)
  this.emit('add-feed', feed)

  return true
}

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