Startup.cs

// ------------------------------------------------------------
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
// ------------------------------------------------------------

using Dapr.Client;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Hosting;
using System.Text.Json;

namespace PubsubWorkflow
{
    public class Startup
    {
        public IConfiguration Configuration { get; }

        public Startup(IConfiguration configuration)
        {
            this.Configuration = configuration;
        }

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddDaprClient();
            services.AddControllers();

            services.AddSingleton(new JsonSerializerOptions()
            {
                PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
                PropertyNameCaseInsensitive = true,
            });
        }

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env, JsonSerializerOptions serializerOptions)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
            }

            app.UseRouting();

            app.UseCloudEvents();

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