This content originally appeared on DEV Community and was authored by Nikhil Wagh
Hook/Intro:
What happens when .NET 10 meets OpenAI? You get a blazing-fast, smart, enterprise-grade web app—built over a weekend! In this post, I’ll show how I fused the latest .NET 10 features with ChatGPT/Azure OpenAI to create a responsive AI assistant in a real-world business app.
Why This Topic Works:
- Combines the hype of AI with the stable release of .NET 10
- Shows real use case → "weekend build" makes it accessible and engaging
- Blends practical code, dev experience, and cool tech — a winning formula
What I Built:
- A lightweight internal tool that allows users to:
- Ask natural-language queries about enterprise data
- Generate business reports using OpenAI GPT
- Summarize customer feedback from SQL data
- Draft internal documents and emails from structured input
Tech Stack:
- .NET 10 Web API
- ASP.NET Core Blazor (for UI)
- Azure OpenAI GPT-4
- Entity Framework Core
- Serilog + Seq for logging
- Redis for caching prompts
Features Used from .NET 10:
- Minimal APIs v2 → rapid endpoint setup
- JIT Compiler Boosts → snappy performance under load
- Span enhancements → optimized string handling for GPT responses
- C# 14 Field-Backed Properties → cleaner data models
- System.Text.Json improvements → faster prompt & response serialization
ChatGPT Integration:
var response = await openAiClient.GetChatCompletionAsync(
new ChatCompletionRequest
{
Model = "gpt-4",
Messages = new List<ChatMessage>
{
new ChatMessage("user", "Summarize customer reviews from last week"),
}
});
Tip: Always cache frequent prompts with a smart key (e.g., user + time + intent).
What I Learned:
- Prompt engineering is half the battle.
- ASP.NET Core is incredibly fast for AI-backed endpoints.
- .NET 10’s performance gains are visible when batching API requests.
- Clean architecture + AI = readable, testable, maintainable.
Ready to Try?
Want the GitHub repo, tutorial series, or free starter template? Drop a comment!
This content originally appeared on DEV Community and was authored by Nikhil Wagh
Nikhil Wagh | Sciencx (2025-06-03T21:09:37+00:00) .NET 10 + AI = Magic: How I Built an Intelligent Web App in a Weekend. Retrieved from https://www.scien.cx/2025/06/03/net-10-ai-magic-how-i-built-an-intelligent-web-app-in-a-weekend/
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