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I've been working on serverless solutions using Azure Functions with .NET 8 and wanted to share some patterns that improved performance and maintainability in my recent projects.

1. Dependency Injection

Leverage the built‑in DI container to register services as singletons when they’re thread‑safe. Avoid scoped services unless you're sure the function runtime respects the request scope.

builder.Services.AddSingleton<IMyService, MyService>();

2. Output Bindings

Use output bindings to reduce boilerplate when writing to storage services. This keeps your function body focused on business logic.

[FunctionName("UploadFile")]
public async Task Run(
    [BlobTrigger("uploads/{name}", Connection = "AzureWebJobsStorage")] Stream myBlob,
    [Queue("processed")] IAsyncCollector<string> outputQueue,
    ILogger log)
{ /* ... */ }