Start using redis with asp net


Redis is an open-source, in-memory data structure store that can be used as a database, cache, and broker. It provides high performance and scalability, making it a popular choice for that require fast data access. In this article, we will explore how to start using Redis with ASP.NET.

Step 1: Install Redis

The first step is to install Redis on your machine. You can download the Redis server from the official website and follow the installation instructions. Once installed, start the Redis server.

Step 2: Install StackExchange.Redis

StackExchange.Redis is a high-performance Redis library for .NET. It provides a and way to interact with Redis from your ASP.NET application. To install StackExchange.Redis, open the NuGet Package Manager Console and run the following :

Install-Package StackExchange.Redis

Step 3: Connect to Redis

To connect to Redis from your ASP.NET application, you need to create a ConnectionMultiplexer object. This object represents a to the Redis server and provides methods to interact with Redis. Here's an example:

using StackExchange.Redis;

public class RedisService
    private readonly ConnectionMultiplexer _redis;

    public RedisService()
        _redis = ConnectionMultiplexer.Connect("localhost");

    public IDatabase GetDatabase()
        return _redis.GetDatabase();

In the above example, we create a RedisService class that encapsulates the Redis connection. The ConnectionMultiplexer is created in the constructor, and the GetDatabase method returns an instance of IDatabase, which can be used to interact with Redis.

Step 4: Store and Retrieve Data

Once to Redis, you can start storing and retrieving data. Redis provides various data structures like strings, lists, sets, and hashes. Here's an example of storing and retrieving a value:

var redis = new RedisService();
var database = redis.GetDatabase();

database.StringSet("key", "value");

var value = database.StringGet("key");

In the above example, we first create an instance of the RedisService class and get the IDatabase instance. We then use the StringSet method to store a string value with a key of “key”. The StringGet method is used to retrieve the value associated with the key.

Step 5: Expire Data

Redis allows you to set an expiration time for your data. This can be useful when you want to automatically remove data from Redis after a certain . Here's an example:

database.StringSet("key", "value", TimeSpan.FromMinutes(5));

var value = database.StringGet("key"); // Returns "value"


value = database.StringGet("key"); // Returns null

In the above example, we set an expiration time of 5 minutes for the “key” and then retrieve the value. After waiting for 6 minutes, the value is no longer available in Redis.


Starting to use Redis with ASP.NET is a straightforward process. By following the steps outlined in this article, you can connect to Redis, store and retrieve data, and even set expiration times for your data. Redis provides a powerful and efficient way to handle data in your ASP.NET applications.

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