Serverless .NET: Getting Started with Azure Functions in 2026

using Microsoft.Azure.Functions.Worker;
using Microsoft.Extensions.Logging;

namespace Niotechone.ServerlessDemo.OrderProcessor;

public class ProcessOrderFunction
{
    private readonly ILogger _logger;

    public ProcessOrderFunction(ILogger logger)
    {
        _logger = logger;
    }

    [Function(nameof(ProcessOrder))]
    public void ProcessOrder(
        [QueueTrigger("orders", Connection = "AzureWebJobsStorage")] OrderMessage message)
    {
        _logger.LogInformation($"Processing order {message.OrderId} for customer {message.CustomerEmail}");
        
        // Simulate business logic
        // In production, call your existing .NET business layer here
        
        _logger.LogInformation($"Order {message.OrderId} processed successfully");
    }
}

public class OrderMessage
{
    public string OrderId { get; set; } = string.Empty;
    public string CustomerEmail { get; set; } = string.Empty;
    public decimal Amount { get; set; }
}