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y-ipfs-connector

y-ipfs-connector

IPFS Connector for Yjs

(Demo video)

Use it!

Retrieve this with npm:

$ npm install y-ipfs-connector --save

Example

// you need to create and inject a IPFS object
const IPFS = require('ipfs')
 
const Y = require('yjs')
require('y-ipfs-connector')(Y)
 
// other Yjs deps:
require('y-memory')(Y)
require('y-array')(Y)
require('y-text')(Y)
 
 
// create IPFS node
const ipfs = new IPFS({
  EXPERIMENTAL: {
    pubsub: true // need this to work
  }
})
 
Y({
  db: {
    name: 'memory'
  },
  connector: {
    name: 'ipfs', // use the IPFS connector
    ipfs: ipfs, // inject the IPFS object
    room: 'Textarea-example-dev'
  },
  sourceDir: '/bower_components', // location of the y-* modules
  share: {
    textarea: 'Text' // y.share.textarea is of type Y.Text
  }
}).then(function (y) {
  // bind the textarea to a shared text element
  y.share.textarea.bind(document.getElementById('textfield'))
}

Signature

options.sign

You can sign messages. For that, you have to provide a sign option, which needs to be a function that accepts a message (string) and calls back with a buffer containing the signature for it (string):

Y({
  connector: {
    name: 'ipfs',
    sign: (m, callback) => { ... }
    // ...
  }
  // ...
})

Using this, messages will be sent alongside with a signature, which can be validated.

options.verifySignature

You can also verify a signature for a given message by providing a function like this:

Y({
  connector: {
    name: 'ipfs',
    verifySignature: (peer, message, signature, callback) => { ... }
    // ...
  }
  // ...
})

options.encode

Optional function that receives the message and encodes it. Useful if you want to encrypt the content before sending.

options.encode = (message) => {
  return encrypt(message)
}

options.decode

Optional function that receives the message and decodes it. Useful if you want to decrypt the content after receiving.

options.decode = (message) => {
  return decrypt(message)
}

Debug

Activate y-ipfs-connector on debug to see log messages.

License

MIT

Contribute

Feel free to join in. All welcome. Open an issue!

This repository falls under the IPFS Code of Conduct.

License

MIT