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React Qr Barcode Scanner

screenshot of React Qr Barcode Scanner
react

A simple React Component using the client's webcam to read barcodes.

Github

Overview

The React QR Barcode Scanner is a robust component designed for modern web applications wanting to leverage webcam functionality for scanning barcodes and QR codes. Built with TypeScript, it integrates seamlessly with both computers and mobile devices, providing versatility for various user environments. Its reliance on popular libraries like react-webcam and @zxing/library ensures efficiency, while its accessibility features make it user-friendly across multiple platforms including iOS and Android.

With a straightforward installation process and clear usage guidelines, developers can easily incorporate this scanner into their projects. The ability to customize various parameters enhances its functionality, making it a must-have tool for anyone looking to implement barcode scanning efficiently in their React applications.

Features

  • Webcam-Based Scanning: Utilizes the user’s webcam, providing real-time scanning capabilities on both desktop and mobile platforms.
  • Camera Permission Handling: Features an optional onError function to gracefully manage camera access issues, ensuring users receive clear feedback when permissions are not granted.
  • Customizable Display Size: Adjustable width and height properties allow developers to fit the component seamlessly into various UI layouts.
  • Torch Support: Includes an optional flashlight feature which can be toggled on or off to improve scanning conditions in low-light environments.
  • Diverse Barcode Formats: Supports a wide array of barcode formats, including popular 1D and 2D types, optimizing for speed by allowing developers to specify which formats to decode.
  • Compatible with Mobile Devices: Specifically designed for use on iOS and Android smartphones, enhancing usability in mobile applications.
  • Error Management: Offers robust error handling for both camera access and barcode reading processes, which enhances user experience.
  • Flexible Frame Updates: A callback function that retrieves scan results for each frame, allowing for real-time processing and feedback on scanned barcodes.
react
React

React is a widely used JavaScript library for building user interfaces and single-page applications. It follows a component-based architecture and uses a virtual DOM to efficiently update and render UI components

eslint
Eslint

ESLint is a linter for JavaScript that analyzes code to detect and report on potential problems and errors, as well as enforce consistent code style and best practices, helping developers to write cleaner, more maintainable code.

typescript
Typescript

TypeScript is a superset of JavaScript, providing optional static typing, classes, interfaces, and other features that help developers write more maintainable and scalable code. TypeScript's static typing system can catch errors at compile-time, making it easier to build and maintain large applications.