Friday, 12 April 2024 09:13

How to setup session in asp.net core mvc

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By default, ASP.NET Core session data is stored in-memory within the same process as your application. However, this is not suitable for production scenarios, especially if you're running your application in a distributed environment or if you need to handle large volumes of data.

To specify where the session data is stored, you can use different session storage providers. Some commonly used session storage providers include:

  1. In-Memory: This is the default provider and stores session data in memory. However, it's not suitable for production scenarios due to scalability and reliability concerns.

  2. Distributed Cache (e.g., Redis): You can configure your ASP.NET Core application to use a distributed cache like Redis to store session data. This allows session data to be shared across multiple servers in a web farm.

  3. SQL Server: You can configure your ASP.NET Core application to store session data in a SQL Server database. This is suitable for scenarios where you need persistent session data and the ability to scale your application horizontally.

  4. Custom Providers: You can also create custom session storage providers if you have specific requirements or want to use a different storage backend.

To configure the session storage provider, you typically need to add additional configuration in your Startup.cs file within the ConfigureServices method. Here's an example of configuring session state to use distributed Redis cache:

public void ConfigureServices(IServiceCollection services) {
// Add distributed Redis cache
services.AddDistributedRedisCache(options => { options.Configuration = "localhost"; options.InstanceName = "SampleInstance"; });
// Configure session
services.AddSession(options => { options.Cookie.Name = ".My.Session"; options.IdleTimeout = TimeSpan.FromSeconds(10); options.Cookie.HttpOnly = true; options.Cookie.IsEssential = true; });
// Other service configurations...
}

In the above example, session data will be stored in a Redis cache with the specified configuration. You can replace "localhost" with the connection string or endpoint of your Redis server.

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