Blog

Mert Özen's blog posts on software development, backend, frontend, and DevOps.

Series

.NET Core Web API 36 Angular 31 JavaScript Basics 19 JavaScript Intermediate 18 JavaScript Advanced 16 TypeScript Basics 14 TypeScript Intermediate 14 TypeScript Advanced 12

3 posts found #migration

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Backend PART 32

Reading Old .NET Core 3.1 and .NET 5 Projects: Migrating from Startup.cs to .NET 6

We read the Startup.cs, Generic Host and UseRouting/UseEndpoints structure of the .NET Core 3.1 and .NET 5 era, then move the same ASP.NET Core API to .NET 6 step by step, including System.Text.Json differences.

4 Nov 2026 10 min 2

Backend PART 14

EF Core and SQLite in ASP.NET Core Web API: DbContext, the First Migration and CRUD

We add a data layer to an ASP.NET Core Web API with EF Core and SQLite: EF Core 6 and 10 package versions, AppDbContext, the connection string, why DbContext is scoped, the first migration, async CRUD and the SQL in the console.

4 Nov 2026 9 min 2

Frontend PART 11

Migrating from JavaScript to TypeScript: checkJs, JSDoc and Gradual strict

We walk through migrating a JavaScript project to TypeScript gradually: allowJs, checkJs and // @ts-check, writing types with JSDoc, the JSDoc changes in TypeScript 7, gradual strict and @ts-expect-error.

3 Nov 2026 8 min 3