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@parity/qr-signer

v0.3.2

Published

A React Component that handles generating and scanning QR codes compatible with Parity Signer

Downloads

27

Readme

qr-signer

A React Component that handles generating and scanning QR codes compatible with Parity Signer mobile app (iOS, Android).

Install

npm install --save @parity/qr-signer

Props

  • scan - boolean, required - Whether to show the QR scanner or a QR code.
  • onScan - function, required - Callback that will be executed with the data scanned from the QR code.
  • size - number - Display width and height in pixels, QR code will be scaled if necessary.
  • account - string, required if scan === false - Ethereum address, 0x prefixed.
  • rlp - string, required if scan === false unless data is present - RLP-encoded Ethereum transaction, 0x prefixed.
  • data - string, required if scan === false unless rlp is present - arbitrary byte data to sign, 0x prefixed.

Example

import React, { Component } from 'react'

import QrSigner from '@parity/qr-signer'

class Example extends Component {
  state = {
    scan: false,
    signature: ''
  }

  render () {
    const { scan, signature } = this.state;

    if (signature) {
      return <div>Signature: {signature}</div>;
    }

    return (
      <div>
        <QrSigner
          size={300}
          scan={scan}
          account='0x007311b88A03af17dbb37B47ab7C9Ab556708D56'
          rlp='0xeb808504a817c8008252089400255cf193f1ba6dd3ec08ebe62e393030f4dd34872386f26fc10000802a8080'
          onScan={(signature) => this.setState({ signature })}
        />
        <button onClick={() => this.setState({ scan: !this.state.scan })}>Toggle Scan</button>
      </div>
    )
  }
}

License

GPLv3