- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
What is the AddSingleton vs AddScoped vs Add Transient C# Asp.net Core?
There are three ways by which dependencies can be registered in Startup.cs. i.e. AddSingleton, AddScoped and AddTransient.
Add Singleton
When we register a type as singleton, only one instance is available throughout the application and for every request.
It is similar to having a static object.
The instance is created for the first request and the same is available throughout the application and for each subsequent requests.
public void ConfigureServices(IServiceCollection services){
services.AddSingleton<ILog,Logger>()
}Add Scoped
When we register a type as Scoped, one instance is available throughout the application per request. When a new request comes in, the new instance is created. Add scoped specifies that a single object is available per request.
public void ConfigureServices(IServiceCollection services){
services.AddScoped<ILog,Logger>()
}Add Transient
When we register a type as Transient, every time a new instance is created. Transient creates new instance for every service/ controller as well as for every request and every user.
public void ConfigureServices(IServiceCollection services){
services.AddTransient<ILog,Logger>()
}| Parameter | Add Singleton | Add Scoped | Add Transient |
|---|---|---|---|
| Instance | Same each request/ each user. | One per request. | Different for everytime. |
| Disposed | App shutdown | End of request | End of request |
| Used in | When Singleton implementation is required. | Applications which have different behavior per user. | Light weight and stateless services. |
- Related Questions & Answers
- What is ViewData in ASP .Net MVC C#?
- What is the significance of NonActionAttribute in ASP .Net MVC C#?
- Gross Working Capital vs. Net Working Capital
- Gross Operating Cycle Vs Net Operating Cycle
- What is the use of ChildActionOnly attribute in ASP .Net MVC C#?
- OneDrive vs Dropbox vs Google Drive vs Box
- Virtual vs Sealed vs New vs Abstract in C#
- mysql_fetch_array vs mysql_fetch_assoc vs mysql_fetch_object?
- Corona vs. Phonegap vs. Titanium
- C++ vs Java vs Python?
- What is the difference between local storage vs cookies?
- Bonus Issue vs. Share Split: What is the difference?
- C++ vs C++0x vs C++11 vs C++98
- How to determine if C# .NET Core is installed?
- What are the three segments of the default route, that is present in ASP .Net MVC\nC#?