Add project files.

Author: Arnab-Developer

FrontEndBackEndDemo.Api/Controllers/WeatherForecastController.cs

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+using Microsoft.AspNetCore.Mvc;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace FrontEndBackEndDemo.Api.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class WeatherForecastController : ControllerBase
+    {
+        private static readonly string[] _summaries = new[]
+        {
+            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+        };
+
+        [HttpGet]
+        public IEnumerable<WeatherForecast> Get()
+        {
+            var rng = new Random();
+            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = DateTime.Now.AddDays(index),
+                TemperatureC = rng.Next(-20, 55),
+                Summary = _summaries[rng.Next(_summaries.Length)]
+            })
+            .ToArray();
+        }
+    }
+}

FrontEndBackEndDemo.Api/FrontEndBackEndDemo.Api.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <LangVersion>9</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="6.1.3" />
+  </ItemGroup>
+
+</Project>

FrontEndBackEndDemo.Api/Program.cs

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+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Hosting;
+
+namespace FrontEndBackEndDemo.Api
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

FrontEndBackEndDemo.Api/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:64073",
+      "sslPort": 0
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "FrontEndBackEndDemo.Api": {
+      "commandName": "Project",
+      "dotnetRunMessages": "true",
+      "launchBrowser": true,
+      "launchUrl": "swagger",
+      "applicationUrl": "http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

FrontEndBackEndDemo.Api/Startup.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+using Microsoft.OpenApi.Models;
+
+namespace FrontEndBackEndDemo.Api
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        // This method gets called by the runtime. Use this method to add services to the container.
+        public void ConfigureServices(IServiceCollection services)
+        {
+
+            services.AddControllers();
+            services.AddSwaggerGen(c =>
+            {
+                c.SwaggerDoc("v1", new OpenApiInfo { Title = "FrontEndBackEndDemo.Api", Version = "v1" });
+            });
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+                app.UseSwagger();
+                app.UseSwaggerUI(c => c.SwaggerEndpoint("/swagger/v1/swagger.json", "FrontEndBackEndDemo.Api v1"));
+            }
+
+            app.UseRouting();
+
+            app.UseAuthorization();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapControllers();
+            });
+        }
+    }
+}

FrontEndBackEndDemo.Api/WeatherForecast.cs

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+using System;
+
+namespace FrontEndBackEndDemo.Api
+{
+    public class WeatherForecast
+    {
+        public DateTime Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string Summary { get; set; }
+
+        public WeatherForecast()
+        {
+            Summary = string.Empty;
+        }
+    }
+}

FrontEndBackEndDemo.Api/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  }
+}

FrontEndBackEndDemo.Api/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "AllowedHosts": "*"
+}

FrontEndBackEndDemo.Web/Controllers/HomeController.cs

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+using FrontEndBackEndDemo.Web.Models;
+using FrontEndBackEndDemo.Web.Options;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Net.Http;
+using System.Text.Json;
+using System.Threading.Tasks;
+
+namespace FrontEndBackEndDemo.Web.Controllers
+{
+    public class HomeController : Controller
+    {
+        private readonly IHttpClientFactory _httpClientFactory;
+        private readonly IOptionsMonitor<BackEndOptions> _backEndOptionOptionsAccessor;
+
+        public HomeController(
+            IHttpClientFactory httpClientFactory,
+            IOptionsMonitor<BackEndOptions> backEndOptionOptionsAccessor)
+        {
+            _httpClientFactory = httpClientFactory;
+            _backEndOptionOptionsAccessor = backEndOptionOptionsAccessor;
+        }
+
+        public async Task<IActionResult> Index()
+        {
+            HttpClient httpClient = _httpClientFactory.CreateClient();
+            HttpResponseMessage backEndApiResponseMessage = await httpClient.GetAsync(
+                _backEndOptionOptionsAccessor.CurrentValue.BackEndApiEndPoint);
+            if (backEndApiResponseMessage.IsSuccessStatusCode)
+            {
+                using Stream backEndApiResponseStream =
+                    await backEndApiResponseMessage.Content.ReadAsStreamAsync();
+                IEnumerable<WeatherForecast>? weatherForecast =
+                    await JsonSerializer.DeserializeAsync<IEnumerable<WeatherForecast>>(backEndApiResponseStream);
+                return View(weatherForecast);
+            }
+            return NotFound();
+        }
+
+        public IActionResult Privacy()
+        {
+            return View();
+        }
+
+        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
+        public IActionResult Error()
+        {
+            return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
+        }
+    }
+}

FrontEndBackEndDemo.Web/FrontEndBackEndDemo.Web.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net5.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <LangVersion>9</LangVersion>
+  </PropertyGroup>
+
+</Project>