Architecture Overview
This library provides a robust solution for generating QR codes in bulk from CSV data. It offers a flexible public API for programmatic QR code generation, allowing customization of links, colors, and output formats. Developers interacting with the application will primarily engage with the Configuration and UI Interaction package, which serves as the main entry point for the desktop application. This package binds UI elements to event handlers and initiates the QR code generation process, handling user input for base URLs, color selection, and triggering the appropriate services.
Under the hood, the QR Code Generation Service orchestrates the entire workflow. It acts as a bridge between the user interface and the lower-level QR code generation and file handling modules. This service processes raw CSV content, applies user-defined colors, and delegates the actual QR code generation to specialized modules. It manages the logic for both individual QR code creation and their bundling into ZIP archives, ensuring all necessary parameters are correctly processed and handles the file saving process, abstracting the complexities of file system interaction.
The QR Code Generation Core is the central component responsible for the fundamental logic of QR code generation. It orchestrates the process of taking input data, applying styling such as color, and rendering the QR code into various formats. Developers would interact with this subsystem to generate individual QR codes with specific configurations. This core acts as the primary engine for transforming raw data into visual QR code representations, supporting multiple output types.
The QR Code Rendering Module encapsulates the logic for rendering individual QR codes, leveraging the qr-code-styling library. It takes a data string and a fill color, along with other styling options, to create a QR code. This module manages the creation of the QR code instance, configures its appearance, and retrieves the raw data in various formats as a Blob. It also handles the generation of a colored SVG logo to be embedded within the QR code, dynamically created based on user color selections.
The Data Import and Processing subsystem handles the crucial task of reading and parsing data from CSV files. It utilizes the PapaParse library to efficiently ingest CSV content, extract relevant data columns, and prepare it for QR code generation. This subsystem enables the automated creation of numerous QR codes by allowing users to ingest bulk data. It validates the CSV structure and selected columns, ensuring data integrity before further processing.
For contributors, understanding how the Configuration and UI Interaction orchestrates calls to the QR Code Generation Service is a good starting point. The QR Code Generation Service then delegates tasks to the QR Code Rendering Module and utilizes the Data Import and Processing subsystem for data ingestion. Familiarizing yourself with the qr-code-styling library and how it's integrated within the QR Code Rendering Module will be beneficial for making changes related to QR code appearance or output formats.