Code Test Solution

.gitignore

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+################################################################################
+# This .gitignore file was automatically created by Microsoft(R) Visual Studio.
+################################################################################
+
+/src/shortenurl.unit.test/bin/Debug/netcoreapp2.1
+/src/shortenurl.unit.test/obj
+/src/Shortenurl.Model/bin/Debug/netstandard2.0
+/src/Shortenurl.Model/obj
+/src/ShortenUrl.API/obj
+/src/ShortenUrl.API/bin/Debug/netcoreapp2.1
+/src/.vs

Install.md

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+# Installation Guide for Shorten Urls Service
+
+### Required Software
+
+  - MS SQL 2012+
+  - Visual Studio 2017 , you can download it from [Here](https://pages.github.com/).
+
+### Install Steps
+
+  - Download Code from GitHub
+  - Create a DB on SQL and run the script src/Shorten.DB/DDL/CREATE SCHEMA AND SPs.sql on it
+  - Open the solution src/ShortenUrl.sln 
+ - Change the "DefaultConnection" value with your DB details on shortenurl.api/appsettings.json file 
+- Run shortenurl.api project
+
+
+### Endpoints
+    Base Url:  https://localhost:[Port]/api/ShortenUrl
+
+

src/Shorten.DB/DDL/CREATE SCHEMA AND SPs.sql

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+
+CREATE TABLE ShortUrl
+(
+ShortUrlId int primary key identity (1,1) not null,
+Code varchar(6) COLLATE Latin1_General_CS_AS unique not null,
+OriginalUrl nvarchar(2083) not null,
+CreatedAt Datetime not null,
+LastUsage Datetime,
+UsageCount int
+)
+
+GO
+
+CREATE PROCEDURE uspGetShortUrl
+(
+@Code varchar(7)
+)
+AS
+
+BEGIN
+
+Select ShortUrlId, Code, OriginalUrl, CreatedAt, LastUsage, UsageCount
+FROM ShortUrl
+where Code  = @Code
+
+END
+
+GO
+
+
+CREATE PROCEDURE uspInsertShortUrl
+(
+@Code varchar(6),
+@OriginalUrl nvarchar(2083)
+)
+AS
+BEGIN
+
+Insert into ShortUrl (Code, OriginalUrl, CreatedAt, UsageCount) values (@Code, @OriginalUrl, GETUTCDATE(), 0)
+
+END
+
+GO
+
+
+CREATE PROCEDURE uspUpdateUsage
+(
+@ShortUrlId int
+)
+AS
+
+BEGIN
+
+Update ShortUrl set LastUsage = GETUTCDATE(), UsageCount = UsageCount + 1
+where ShortUrlId = @ShortUrlId
+
+END
+
+
+
+
+
+
+

src/ShortenUrl.API/Controllers/ShortenUrlController.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using shortenurl.model.DTOs;
+using shortenurl.model.Interfaces.Services;
+using shortenurl.model.ViewModels;
+
+namespace shortenurl.api.Controllers
+{
+    [Route("api/[controller]")]
+    [ApiController]
+    public class ShortenUrlController : ControllerBase
+    {
+
+        [HttpPost]
+        [Route("urls")]
+        public async Task<ActionResult<ShortUrlCreatedViewModel>> CreateShortenUrl(ShortenUrlDTO shortenUrlDTO,[FromServices]IShortenUrlService shortenUrlService)
+        {
+
+           var code = await shortenUrlService.CreateShortenUrl(shortenUrlDTO);
+           return Created(string.Empty,code);
+        }
+
+        [HttpGet("{code}")]
+        public async Task<IActionResult> Get(string code, [FromServices]IShortenUrlService shortenUrlService)
+        {
+            var location = await shortenUrlService.GetUrlByCode(code);
+            return Redirect(location);
+        }
+
+
+        [HttpGet("{code}/stats")]
+        public async Task<ActionResult<UrlStatsViewModel>> GetCodeStats(string code, [FromServices]IShortenUrlService shortenUrlService)
+        {
+            var result = await shortenUrlService.GetStatsByCode(code);
+            return Ok(result);
+        }
+
+    }
+}

src/ShortenUrl.API/Filters/CustomExceptionFilter.cs

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+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.Filters;
+using shortenurl.model.Exceptions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Threading.Tasks;
+
+namespace shortenurl.api.Filters
+{
+    public class CustomExceptionFilter : ExceptionFilterAttribute
+    {
+        public override void OnException(ExceptionContext context)
+        {
+            var msg = context.Exception.GetBaseException().Message;
+            string stack = context.Exception.StackTrace;
+
+            switch (context.Exception.GetType().Name)
+            {
+                case "NotFoundException":
+                    context.HttpContext.Response.StatusCode = (int)HttpStatusCode.NotFound;
+                    break;
+                case "UnprocessableEntityException":
+                    context.HttpContext.Response.StatusCode = (int)HttpStatusCode.UnprocessableEntity;
+                    break;
+                case "ConflictException":
+                    context.HttpContext.Response.StatusCode = (int)HttpStatusCode.Conflict;
+                    break;
+                default:
+                    context.HttpContext.Response.StatusCode = (int)HttpStatusCode.InternalServerError;
+                    break;
+            }
+
+            context.Result = new JsonResult(msg);
+            base.OnException(context);
+        }
+    }
+}

src/ShortenUrl.API/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Logging;
+
+namespace shortenurl.api
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateWebHostBuilder(args).Build().Run();
+        }
+
+        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
+            WebHost.CreateDefaultBuilder(args)
+                .UseStartup<Startup>();
+    }
+}

src/ShortenUrl.API/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false, 
+    "anonymousAuthentication": true, 
+    "iisExpress": {
+      "applicationUrl": "http://localhost:8497",
+      "sslPort": 44314
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "api/values",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "shortenurl.api": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "api/values",
+      "applicationUrl": "https://localhost:5001;http://localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

src/ShortenUrl.API/Startup.cs

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+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Newtonsoft.Json;
+using shortenurl.api.Filters;
+using shortenurl.model;
+using shortenurl.model.Interfaces;
+using shortenurl.model.Interfaces.Repositories;
+using shortenurl.model.Interfaces.Services;
+using shortenurl.model.Repositories;
+using shortenurl.model.Services;
+using shortenurl.model.Settings;
+
+namespace shortenurl.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.AddMvc(
+                    options =>
+                    options.Filters.Add(new CustomExceptionFilter())
+                )
+                .SetCompatibilityVersion(CompatibilityVersion.Version_2_1)
+                    .AddJsonOptions(options =>
+               {
+                   //Set date configurations
+                   options.SerializerSettings.DateTimeZoneHandling = DateTimeZoneHandling.Utc;
+                   options.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
+
+               });
+
+
+            var connectionStringsSection = Configuration.GetSection("ConnectionStrings");
+            services.Configure<ConnectionStrings>(connectionStringsSection);
+
+            services.AddSingleton<IShortenUrlService, ShortenUrlService>();
+            services.AddSingleton<ISqlDataAccess, SqlDataAccess>();
+            services.AddSingleton<IShortenUrlRepository, ShortenUrlRepository>();
+            services.AddSingleton<ICodeService, CodeService>();
+
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+            else
+            {
+                app.UseHsts();
+            }
+
+            app.UseHttpsRedirection();
+            app.UseMvc();
+        }
+    }
+}

src/ShortenUrl.API/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Debug",
+      "System": "Information",
+      "Microsoft": "Information"
+    }
+  }
+}

src/ShortenUrl.API/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "Server=localhost;Database=SHORTEN_URL2;Integrated Security=True;"
+  }
+}

src/ShortenUrl.API/shortenurl.api.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Folder Include="wwwroot\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.App" />
+    <PackageReference Include="Microsoft.AspNetCore.Razor.Design" Version="2.1.2" PrivateAssets="All" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\shortenurl.model\shortenurl.model.csproj" />
+  </ItemGroup>
+
+</Project>

src/ShortenUrl.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio 15
+VisualStudioVersion = 15.0.28307.489
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "shortenurl.api", "ShortenUrl.API\shortenurl.api.csproj", "{DBAF0C7F-4D0A-4267-A5D6-32BB25C27E9E}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "shortenurl.model", "shortenurl.model\shortenurl.model.csproj", "{FA20AC8E-8930-4BA3-86FE-A4BEAECA283B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "shortenurl.unit.test", "shortenurl.unit.test\shortenurl.unit.test.csproj", "{C460CBD3-D275-4A5C-8DA4-50DB84E83994}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{DBAF0C7F-4D0A-4267-A5D6-32BB25C27E9E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{DBAF0C7F-4D0A-4267-A5D6-32BB25C27E9E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{DBAF0C7F-4D0A-4267-A5D6-32BB25C27E9E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{DBAF0C7F-4D0A-4267-A5D6-32BB25C27E9E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FA20AC8E-8930-4BA3-86FE-A4BEAECA283B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FA20AC8E-8930-4BA3-86FE-A4BEAECA283B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FA20AC8E-8930-4BA3-86FE-A4BEAECA283B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FA20AC8E-8930-4BA3-86FE-A4BEAECA283B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{C460CBD3-D275-4A5C-8DA4-50DB84E83994}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{C460CBD3-D275-4A5C-8DA4-50DB84E83994}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{C460CBD3-D275-4A5C-8DA4-50DB84E83994}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{C460CBD3-D275-4A5C-8DA4-50DB84E83994}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {258CE533-A4D3-4752-89F1-7CBD40C131FB}
+	EndGlobalSection
+EndGlobal