.NET Core Web API - Configure Response Caching Middleware

Startup.cs

// Startup.cs 
public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        // Response Caching Middleware
        services.AddResponseCaching(options =>
        {
            // Each response cannot be more than 1 KB 
            options.MaximumBodySize = 1024;

            // Case Sensitive Paths 
            // Responses to be returned only if case sensitive paths match
            options.UseCaseSensitivePaths = true;
        });
        
        services.AddControllers();
        services.AddSwaggerGen(c =>
        {
            c.SwaggerDoc(
                "v1", new OpenApiInfo { Title = "WebApiResponseCachingDemo", Version = "v1" });
        });
    }

    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        if (env.IsDevelopment())
        {
            app.UseDeveloperExceptionPage();
            app.UseSwagger();
            app.UseSwaggerUI(
                c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "WebApiResponseCachingDemo v1"));
        }

        app.UseHttpsRedirection();

        app.UseRouting();

        // CORS Should be before Response Caching 
        app.UseCors();

        // Response Caching Middleware
        app.UseResponseCaching();
        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
        });
    }
}

// ValuesController.cs
[Route("api/[controller]")]
[ApiController]
public class ValuesController : ControllerBase
{
    // ResponseCacheAttribute is to set caching headers
    [HttpGet]
    [ResponseCache(NoStore = false, Duration = 10, Location = ResponseCacheLocation.Any)]
    public IEnumerable<string> Get()
    {
        return new string[] { "value1", "value2", DateTime.Now.ToString() };
    }
}