Asp net core how to cache student data using redis in asp net core dapper

Introduction

ASP.NET is a popular programming language used for building web applications. In this article, we will explore how to cache student data using in ASP.NET Core with Dapper.

What is Redis?

Redis is an open-source, in-memory data structure store that can be used as a cache, database, or message broker. It provides high performance and scalability, making it an ideal for caching data in web applications.

up Redis in ASP.NET Core

Before we can start caching student data using Redis, we need to set up Redis in our ASP.NET Core application. Here are the steps:

  1. Install the Redis package from NuGet by running the command in the Package Manager Console:
Install-Package Microsoft.Extensions.Caching.Redis
  1. Add the Redis cache in the ConfigureServices method of the Startup class:
services.AddDistributedRedisCache(options =>
{
    options.Configuration = "localhost";
    options.InstanceName = "SampleInstance";
});

Make sure to replace “localhost” with the actual Redis server address if it's running on a machine.

Caching Student Data using Redis and Dapper

Now that we have Redis set up in our ASP.NET Core application, let's see how we can cache student data using Redis and Dapper.

  1. Create a StudentRepository class that will handle the retrieval of student data:
public class StudentRepository
{
     readonly IDistributedCache _cache;
    private readonly string _cacheKey = "students";

    public StudentRepository(IDistributedCache cache)
    {
        _cache = cache;
    }

    public async Task> GetStudents()
    {
        var cachedStudents = await _cache.GetStringAsync(_cacheKey);

        if (cachedStudents != null)
        {
            return JsonConvert.DeserializeObject>(cachedStudents);
        }

        var students = await GetStudentsFromDatabase();

        await _cache.SetStringAsync(_cacheKey, JsonConvert.SerializeObject(students));

        return students;
    }

    private async Task> GetStudentsFromDatabase()
    {
        // Code to retrieve students from the database using Dapper
    }
}

In the above code, we first check if the student data is already cached in Redis. If it is, we deserialize the cached data and return it. If not, we retrieve the data from the database using Dapper, cache it in Redis, and return it.

  1. Inject the StudentRepository into your controller and use it to retrieve student data:
public class StudentController : Controller
{
    private readonly StudentRepository _studentRepository;

    public StudentController(StudentRepository studentRepository)
    {
        _studentRepository = studentRepository;
    }

    public async Task Index()
    {
        var students = await _studentRepository.GetStudents();

        return View(students);
    }
}

In the above code, we inject the StudentRepository into the StudentController and use it to retrieve the student data. The data is then to the view for rendering.

Conclusion

In this article, we have learned how to cache student data using Redis in ASP.NET Core with Dapper. Caching data can greatly improve the performance of web applications by reducing the load on the database. Redis provides a fast and scalable caching , and Dapper makes it easy to retrieve data from the database. By these technologies, we can create efficient and responsive web applications.

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