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Coding Droplets

@codingdropletsJoined April 2025

Build, Scale & Master .NET with Clean, Practical Tutorials

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Coding Dropletscodingdroplets.com317 posts

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CDCoding Dropletscodingdroplets.com6h ago · 9 min read

No 'Access-Control-Allow-Origin' Header Is Present in ASP.NET Core: Causes and Fixes

The browser console message is always some version of this: Access to fetch at 'https://api.example.com/orders' from origin 'https://app.example.com' has been blocked by CORS policy: No 'Access-Contro

CDCoding Dropletscodingdroplets.com2d ago · 10 min read

Securing an MCP Server in ASP.NET Core: OAuth, Scopes and Tool Authorization

The thing that makes MCP servers so quick to build is also what makes them dangerous. You decorate a method, the SDK generates a tool definition, and a language model somewhere can now invoke it. That

CDCoding Dropletscodingdroplets.com3d ago · 9 min read

7 Common ASP.NET Core Minimal API Mistakes (And How to Fix Them)

Minimal APIs are genuinely good now. The performance is excellent, the tooling caught up, and on .NET 10 the last few gaps that used to justify reaching for controllers have closed. What has not chang

CDCoding Dropletscodingdroplets.com4d ago · 10 min read

LLM Model Routing in .NET: Cheap Model First, Expensive Only When Needed

Look at a week of traffic through any AI endpoint and the distribution is always lopsided. A large majority of requests are trivial - classify this ticket, extract these three fields, answer a questio

CDCoding Dropletscodingdroplets.com6d ago · 9 min read

Local AI Development in .NET with Ollama and GitHub Models: A Setup Checklist

Getting a model running on your laptop is the easy part. Two commands and a NuGet package and you have a chat endpoint answering questions with no API key and no bill. The hard part, and the part that

Coding Droplets

About

Available for

Coding Droplets's blogs

Recently published

No 'Access-Control-Allow-Origin' Header Is Present in ASP.NET Core: Causes and Fixes

Securing an MCP Server in ASP.NET Core: OAuth, Scopes and Tool Authorization

7 Common ASP.NET Core Minimal API Mistakes (And How to Fix Them)

LLM Model Routing in .NET: Cheap Model First, Expensive Only When Needed

Local AI Development in .NET with Ollama and GitHub Models: A Setup Checklist

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Coding Droplets

About

Available for

Coding Droplets's blogs

Recently published

No 'Access-Control-Allow-Origin' Header Is Present in ASP.NET Core: Causes and Fixes

Securing an MCP Server in ASP.NET Core: OAuth, Scopes and Tool Authorization

7 Common ASP.NET Core Minimal API Mistakes (And How to Fix Them)

LLM Model Routing in .NET: Cheap Model First, Expensive Only When Needed

Local AI Development in .NET with Ollama and GitHub Models: A Setup Checklist