Pasos para crear API de Escáner de Códigos de Barras para Aplicación WEB

Installing IronBarcode

We can install the IronBarcode Library directly into our project by using the Package Manager Console. Enter the following command to install the IronBarcode Library:

Install-Package BarCode

The above command will download and install the IronBarcode Library into your project along with its dependencies.

Alternatively, you can install the IronBarcode library using the Manage NuGet Packages for Solution in Visual Studio:

Scan Barcodes using IronBarcode

using IronBarCode;
using System;

public class BarcodeScanner
{
    public static void Main()
    {
        // Read the barcode from an image file
        var resultFromFile = BarcodeReader.Read("myBarcode.jpeg");

        // Iterate through the results and print each barcode value
        foreach (var result in resultFromFile)
        {
            Console.WriteLine($"Barcode Value = {result}");
        }
    }
}

using IronBarCode;
using System;

public class BarcodeScanner
{
    public static void Main()
    {
        // Read the barcode from an image file
        var resultFromFile = BarcodeReader.Read("myBarcode.jpeg");

        // Iterate through the results and print each barcode value
        foreach (var result in resultFromFile)
        {
            Console.WriteLine($"Barcode Value = {result}");
        }
    }
}

Imports IronBarCode
Imports System

Public Class BarcodeScanner
	Public Shared Sub Main()
		' Read the barcode from an image file
		Dim resultFromFile = BarcodeReader.Read("myBarcode.jpeg")

		' Iterate through the results and print each barcode value
		For Each result In resultFromFile
			Console.WriteLine($"Barcode Value = {result}")
		Next result
	End Sub
End Class

Scanning barcodes from an invoice or PDF document is a straightforward process with the IronBarcode Library. By leveraging its capabilities, developers can efficiently extract barcode information from these documents, enabling seamless integration into their applications. This functionality enhances data processing efficiency and facilitates tasks such as inventory management, invoice processing, and document organization.

Let's proceed by scanning the following barcode.

The following code will take the provided invoice PDF as input, detect all barcodes present within it, and return their values.

using IronBarCode;
using System;

public class PdfBarcodeScanner
{
    public static void Main()
    {
        // Read barcodes from a PDF file
        var barcodes = BarcodeReader.Read("invoice.pdf");

        // Iterate through the results and print each barcode value along with its index
        for (int i = 0; i < barcodes.Count; i++)
        {
            Console.WriteLine($"Barcode {i + 1} = {barcodes[i]}");
        }
    }
}

using IronBarCode;
using System;

public class PdfBarcodeScanner
{
    public static void Main()
    {
        // Read barcodes from a PDF file
        var barcodes = BarcodeReader.Read("invoice.pdf");

        // Iterate through the results and print each barcode value along with its index
        for (int i = 0; i < barcodes.Count; i++)
        {
            Console.WriteLine($"Barcode {i + 1} = {barcodes[i]}");
        }
    }
}

Imports IronBarCode
Imports System

Public Class PdfBarcodeScanner
	Public Shared Sub Main()
		' Read barcodes from a PDF file
		Dim barcodes = BarcodeReader.Read("invoice.pdf")

		' Iterate through the results and print each barcode value along with its index
		For i As Integer = 0 To barcodes.Count - 1
			Console.WriteLine($"Barcode {i + 1} = {barcodes(i)}")
		Next i
	End Sub
End Class

The above code snippet utilizes the IronBarcode library to extract barcode data from an invoice PDF. It reads the PDF file, detects all barcodes within it, and then iterates through each barcode found. For each barcode detected, it prints out its value along with its corresponding index in the list of barcodes. This process enables efficient retrieval of barcode information from the PDF for further processing or analysis.

Output

To create a barcode using IronBarcode in a .NET project, developers can utilize the library's versatile functionality. Developers can generate various types of barcodes, including QR codes, Code 128, UPC-A, and more with just a few lines of code.

The following code will create a barcode, resize it, and save it as a PNG file.

using IronBarCode;
using System;

public class BarcodeCreator
{
    public static void CreateBarcode()
    {
        // Generate a barcode with the specified data and encoding
        var barcode = BarcodeWriter.CreateBarcode("1122000399485533466", BarcodeEncoding.Code128);

        // Resize the barcode to desired dimensions
        barcode.ResizeTo(600, 400);

        // Save the barcode as a PNG image file
        barcode.SaveAsPng("barcode.png");
    }
}

using IronBarCode;
using System;

public class BarcodeCreator
{
    public static void CreateBarcode()
    {
        // Generate a barcode with the specified data and encoding
        var barcode = BarcodeWriter.CreateBarcode("1122000399485533466", BarcodeEncoding.Code128);

        // Resize the barcode to desired dimensions
        barcode.ResizeTo(600, 400);

        // Save the barcode as a PNG image file
        barcode.SaveAsPng("barcode.png");
    }
}

Imports IronBarCode
Imports System

Public Class BarcodeCreator
	Public Shared Sub CreateBarcode()
		' Generate a barcode with the specified data and encoding
		Dim barcode = BarcodeWriter.CreateBarcode("1122000399485533466", BarcodeEncoding.Code128)

		' Resize the barcode to desired dimensions
		barcode.ResizeTo(600, 400)

		' Save the barcode as a PNG image file
		barcode.SaveAsPng("barcode.png")
	End Sub
End Class

The above code snippet demonstrates how to create a barcode using IronBarcode in a .NET project. In this example, a barcode is generated using the BarcodeWriter.CreateBarcode() function with the data "1122000399485533466" encoded in the Code 128 format.

The generated barcode is then resized to dimensions of 600x400 pixels to suit specific requirements. Finally, the barcode is saved as a PNG image file named "barcode.png", ready for use in various applications such as product labeling, inventory management, and document processing.

Output

IronBarcode provides a straightforward solution for integrating a web-based barcode scanner without relying on an external JavaScript library or JavaScript Barcode Scanner SDK. With IronBarcode, developers can seamlessly implement barcode scanning functionality using pure .NET code, ensuring both simplicity and security in their projects.