QR Code Generator in Go

This is a simple Go application that generates a QR code for a specified URL and saves it as a PNG file. The project uses the go-qrcode library.

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Features

• Generates a QR code for any URL.
• Saves the QR code as a PNG image.
• Easy to customize and extend.

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Requirements

• Go installed on your machine. Download it from golang.org.
• The go-qrcode library (automatically installed via the go get command).

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Installation

1. Clone this repository or create a new directory for the project:

   git clone https://github.com/sun01822/qr_code_generator_using_golang.git
   cd qr_code_generator_go

2. Install the required library:

   go get -u github.com/skip2/go-qrcode

3. Build and run the application:

   go run main.go

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Usage

1. Open the main.go file.

2. Replace the URL "http://github.com/sun01822" with the URL for which you want to generate a QR code.

3. Run the application using:

   go run main.go

4. The QR code will be saved as qrcode.png in the same directory as the application.

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Example

By default, this application generates a QR code for the URL http://github.com/sun01822 and saves it as qrcode.png.

Generated QR code file:

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Customization

Change URL

Replace the URL string in the main.go file with your desired URL:

err := qrcode.WriteFile("http://example.com", qrcode.High, 256, "qrcode.png")

Adjust Image Size

Modify the size parameter (e.g., 256) to change the dimensions of the QR code:

err := qrcode.WriteFile("http://example.com", qrcode.High, 512, "qrcode.png")

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Libraries Used

• skip2/go-qrcode: A Go library for generating QR codes.

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License

This project is open-source and available under the MIT License.

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Author

Developed by MD. Shariar Hossain Sun.
Feel free to reach out for contributions or issues!