node-red-contrib-viseo-qrcode 0.1.0

Decodes a given QrCode

npm install node-red-contrib-viseo-qrcode

A Node-RED node to decode QRCode using PureJS

This node is part of project node-red-contrib-viseo powered by VISEO Technologies.

Quick Start

npm install node-red-contrib-viseo-qrcode

Build the Node-RED Flow

The qrDecode node

  • retrieve a Buffer or an URL from the given input,
  • if it's an URL, download the Buffer
  • retrieve and decode the Buffer QRCode
  • parse encoded data to a JSON object
  • If data is an URL, convert it's querystring to a JSON object


Best Practices

ZXing webservice can be use to generate a QRCode.

Generated QRCode should contains an URL with parameters.

  • Anyone using the QRCode will be redirected to that URL (that could explain the webservice)
  • Decoding the QRCode will still works

Getting Help

For further help, or general discussion, please use the github issue tracker and in order to be labeled with question tag please specify :

  • Your message is a question / discussion
  • The module or node name


Before raising a pull-request, please read our contributing guide.

This project adheres to the Contributor Covenant 1.4. By participating, you are expected to uphold this code. Please report unacceptable behavior to any of the project's core team.


This project is a creation of VISEO Innovation.

Copyright 2016-2017 VISEO under the Apache 2.0 license.

Node Info

Version: 0.1.0
Updated 10 months ago
License: Apache-2.0


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