Singleton
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What is Singleton?
Singleton lifetime is a type of dependency injection that creates a single instance of an object and reuses it throughout the lifetime of the application. This means that if multiple components within the same request or across different requests depend on the same service, they will all receive the same instance of the service.
Singleton lifetime is useful when you have services that need to maintain state or shared data across requests, such as a service that caches data or maintains a connection to a resource.
Free resources to learn Singleton
More in stage 6: Caching
- Caching
- Redis
- Memcached
- Distributed Cache
- Memory Cache
- Entity Framework 2nd Level Cache
- RepoDB
- Dapper
- NHibernate
- MVC
- REST
- Minimal APIs
- Razor Pages
- Razor Components
- Middlewares
- Filters and Attributes
- App Settings and Configs
- Entity Framework Core
- Framework Basics
- Code First + Migrations
- Change Tracker API
- Lazy, Eager, Explicit Loading
- Scoped
- Transient
- Scrutor
Singleton: common questions
Can I learn Singleton in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Singleton in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Singleton tutorial for beginners?
It is lesson 43 of 146 in the free ASP.NET Core roadmap, in stage 6, Caching. If you are new to ASP.NET Core, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.