@codingdroplets

Coding Droplets

@codingdropletsJoined April 2025

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

About

Nothing here yet.

Available for

Nothing here yet.

Coding Droplets's blogs

Coding Dropletscodingdroplets.com312 posts

Articles Comments

Recently published

CDCoding Dropletscodingdroplets.com10h ago · 9 min read

Synchronous Operations Are Disallowed in ASP.NET Core: Causes and Fixes

You upgraded a service, deployed it, and a single endpoint started throwing this: System.InvalidOperationException: Synchronous operations are disallowed. Call ReadAsync or set AllowSynchronousIO to t

CDCoding Dropletscodingdroplets.com1d ago · 11 min read

Semantic Caching for LLM Calls in ASP.NET Core: When to Use It and How

Every AI feature I have shipped eventually hits the same wall. Users ask the same twenty questions in a hundred different phrasings, and each one costs a full round trip to the model. Semantic caching

CDCoding Dropletscodingdroplets.com2d ago · 9 min read

Migrating from Newtonsoft.Json to System.Text.Json in ASP.NET Core: A Step-by-Step Guide

For years the honest advice on how to migrate Newtonsoft.Json to System.Text.Json in ASP.NET Core was "wait". Two features kept teams pinned to AddNewtonsoftJson(): JSON Patch and polymorphic serializ

CDCoding Dropletscodingdroplets.com3d ago · 10 min read

Token-Based Rate Limiting for AI Endpoints in ASP.NET Core: A Real-World Walkthrough

The first AI endpoint I put behind a rate limiter was protected by a policy that allowed 60 requests per minute per user. It felt responsible. Two weeks later one customer generated a bill larger than

CDCoding Dropletscodingdroplets.com4d ago · 9 min read

Customizing 401 Responses with JwtBearerEvents in ASP.NET Core

Every error your ASP.NET Core API returns is a documented, structured Problem Details payload. Except one. When a bearer token is missing, expired, or malformed, the client gets a 401 with an empty bo

Coding Droplets

About

Available for

Coding Droplets's blogs

Recently published

Synchronous Operations Are Disallowed in ASP.NET Core: Causes and Fixes

Semantic Caching for LLM Calls in ASP.NET Core: When to Use It and How

Migrating from Newtonsoft.Json to System.Text.Json in ASP.NET Core: A Step-by-Step Guide

Token-Based Rate Limiting for AI Endpoints in ASP.NET Core: A Real-World Walkthrough

Customizing 401 Responses with JwtBearerEvents in ASP.NET Core

Search Hashnode

Coding Droplets

About

Available for

Coding Droplets's blogs

Recently published

Synchronous Operations Are Disallowed in ASP.NET Core: Causes and Fixes

Semantic Caching for LLM Calls in ASP.NET Core: When to Use It and How

Migrating from Newtonsoft.Json to System.Text.Json in ASP.NET Core: A Step-by-Step Guide

Token-Based Rate Limiting for AI Endpoints in ASP.NET Core: A Real-World Walkthrough

Customizing 401 Responses with JwtBearerEvents in ASP.NET Core