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Generate QR with C# REST API

This guide shows you how to generate QR codes with a C# REST API. You’ll build a QR‑code generator using the C# Low Code API together with a Dotnet‑based Cloud SDK, and learn how to tweak the various properties of the resulting QR‑code image file for full customization.

Prerequisite

Steps for QR Code Builder with C# REST Interface

  1. Include Aspose.BarCode Cloud SDK API and model classes
  2. Initialize the configuration with API base URL, client ID, and client secret
  3. Specify the file name where the QR Code image will be saved
  4. Create an instance of GenerateApi using the configured settings
  5. Call the GenerateAsync method to create a QR Code with the desired text and image format
  6. Open a file stream to prepare for writing the generated QR Code image
  7. Copy the generated QR Code stream into the file for storage

These steps summarize the process for a 2D code generator with C# .NET-based API. First, set up the Aspose.BarCode Cloud SDK by configuring your API credentials and choosing a file name for the QR Code. Then, generate the QR Code with your desired text and format, and save it to a file for use.

Code for QR Builder using C# RESTful Service

With the sample above you now have a fully functional QR tag generator with C# REST API. By calling GenerateAsync() you can produce a barcode or QR code asynchronously—just supply the text to encode plus any optional parameters such as style, size, colors, or rotation. The method builds the request, sends it to the service, and returns the completed code as a stream that you can save or use directly.

With these steps, you can confidently generate QR codes using the C# REST API. Want to produce barcodes as well? Dive into our companion tutorial Generate barcode with C# REST API.

 

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