C#: How do you implement caching with Redis?

1builder.Services.AddStackExchangeRedisCache(options =>
2{
3    options.Configuration = "localhost:6379";
4    options.InstanceName = "master";
5});

1public class ProductService(IDistributedCache cache)
2{
3    public async Task<Product> GetProductAsync(int id)
4    {
5        var key = $"product_{id}";
6        var cached = await cache.GetStringAsync(key);
7        if (cached != null)
8            return JsonSerializer.Deserialize<Product>(cached);
9
10        var product = await db.Products.FindAsync(id);
11        await cache.SetStringAsync(key, JsonSerializer.Serialize(product));
12        return product;
13    }
14}