Fase 1: Setup ASP.NET Core API project, configure DB connection, install Dapper

Backend/GestionIntegral.Api/Data/DbConnectionFactory.cs

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+using Microsoft.Data.SqlClient;
+using System.Data;
+
+namespace GestionIntegral.Api.Data
+{
+    public class DbConnectionFactory
+    {
+        private readonly string _connectionString;
+
+        // El constructor recibe IConfiguration para leer el appsettings.json
+        public DbConnectionFactory(IConfiguration configuration)
+        {
+            _connectionString = configuration.GetConnectionString("DefaultConnection")
+                                ?? throw new ArgumentNullException(nameof(configuration), "Connection string 'DefaultConnection' not found.");
+        }
+
+        // Método para crear y abrir una nueva conexión
+        public IDbConnection CreateConnection()
+        {
+            // Usamos SqlConnection del paquete Microsoft.Data.SqlClient
+            var connection = new SqlConnection(_connectionString);
+            // Nota: No abrimos la conexión aquí. Dapper la abre y cierra automáticamente.
+            return connection;
+        }
+    }
+}

Backend/GestionIntegral.Api/GestionIntegral.Api.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net9.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Dapper" Version="2.1.66" />
+    <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.3" />
+    <PackageReference Include="Microsoft.Data.SqlClient" Version="6.0.2" />
+  </ItemGroup>
+
+</Project>

Backend/GestionIntegral.Api/GestionIntegral.Api.http

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+@GestionIntegral.Api_HostAddress = http://localhost:5183
+
+GET {{GestionIntegral.Api_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###

Backend/GestionIntegral.Api/Program.cs

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+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
+builder.Services.AddOpenApi();
+
+// Registra la fábrica de conexiones como Singleton (una instancia para toda la app)
+builder.Services.AddSingleton<GestionIntegral.Api.Data.DbConnectionFactory>();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

Backend/GestionIntegral.Api/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5183",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:7270;http://localhost:5183",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

Backend/GestionIntegral.Api/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "ConnectionStrings": {
+    "DefaultConnection": "Server=TECNICA3;Database=gestionvbnet;User ID=gestionapi;Password=1351;Encrypt=False;TrustServerCertificate=True;"
+  }
+}

Backend/GestionIntegral.Api/appsettings.json

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

Backend/GestionIntegral.Api/obj/Debug/net9.0/.NETCoreApp,Version=v9.0.AssemblyAttributes.cs

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+// <autogenerated />
+using System;
+using System.Reflection;
+[assembly: global::System.Runtime.Versioning.TargetFrameworkAttribute(".NETCoreApp,Version=v9.0", FrameworkDisplayName = ".NET 9.0")]

Backend/GestionIntegral.Api/obj/Debug/net9.0/GestionIntegral.Api.AssemblyInfo.cs

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+//------------------------------------------------------------------------------
+// <auto-generated>
+//     This code was generated by a tool.
+//
+//     Changes to this file may cause incorrect behavior and will be lost if
+//     the code is regenerated.
+// </auto-generated>
+//------------------------------------------------------------------------------
+
+using System;
+using System.Reflection;
+
+[assembly: System.Reflection.AssemblyCompanyAttribute("GestionIntegral.Api")]
+[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
+[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0")]
+[assembly: System.Reflection.AssemblyProductAttribute("GestionIntegral.Api")]
+[assembly: System.Reflection.AssemblyTitleAttribute("GestionIntegral.Api")]
+[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
+
+// Generado por la clase WriteCodeFragment de MSBuild.
+

Backend/GestionIntegral.Api/obj/Debug/net9.0/GestionIntegral.Api.GeneratedMSBuildEditorConfig.editorconfig

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+is_global = true
+build_property.TargetFramework = net9.0
+build_property.TargetPlatformMinVersion = 
+build_property.UsingMicrosoftNETSdkWeb = true
+build_property.ProjectTypeGuids = 
+build_property.InvariantGlobalization = 
+build_property.PlatformNeutralAssembly = 
+build_property.EnforceExtendedAnalyzerRules = 
+build_property._SupportedPlatformList = Linux,macOS,Windows
+build_property.RootNamespace = GestionIntegral.Api
+build_property.RootNamespace = GestionIntegral.Api
+build_property.ProjectDir = E:\GestionIntegralWeb\Backend\GestionIntegral.Api\
+build_property.EnableComHosting = 
+build_property.EnableGeneratedComInterfaceComImportInterop = 
+build_property.RazorLangVersion = 9.0
+build_property.SupportLocalizedComponentNames = 
+build_property.GenerateRazorMetadataSourceChecksumAttributes = 
+build_property.MSBuildProjectDirectory = E:\GestionIntegralWeb\Backend\GestionIntegral.Api
+build_property._RazorSourceGeneratorDebug = 
+build_property.EffectiveAnalysisLevelStyle = 9.0
+build_property.EnableCodeStyleSeverity = 

Backend/GestionIntegral.Api/obj/Debug/net9.0/GestionIntegral.Api.GlobalUsings.g.cs

@@ -0,0 +1,17 @@
+// <auto-generated/>
+global using global::Microsoft.AspNetCore.Builder;
+global using global::Microsoft.AspNetCore.Hosting;
+global using global::Microsoft.AspNetCore.Http;
+global using global::Microsoft.AspNetCore.Routing;
+global using global::Microsoft.Extensions.Configuration;
+global using global::Microsoft.Extensions.DependencyInjection;
+global using global::Microsoft.Extensions.Hosting;
+global using global::Microsoft.Extensions.Logging;
+global using global::System;
+global using global::System.Collections.Generic;
+global using global::System.IO;
+global using global::System.Linq;
+global using global::System.Net.Http;
+global using global::System.Net.Http.Json;
+global using global::System.Threading;
+global using global::System.Threading.Tasks;

Backend/GestionIntegral.Api/obj/GestionIntegral.Api.csproj.nuget.dgspec.json

@@ -0,0 +1,91 @@
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+  "restore": {
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+        "packagesPath": "C:\\Users\\dmolinari\\.nuget\\packages\\",
+        "outputPath": "E:\\GestionIntegralWeb\\Backend\\GestionIntegral.Api\\obj\\",
+        "projectStyle": "PackageReference",
+        "fallbackFolders": [
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+        "configFilePaths": [
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+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
+          "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
+        ],
+        "originalTargetFrameworks": [
+          "net9.0"
+        ],
+        "sources": {
+          "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
+          "C:\\Program Files\\dotnet\\library-packs": {},
+          "https://api.nuget.org/v3/index.json": {}
+        },
+        "frameworks": {
+          "net9.0": {
+            "targetAlias": "net9.0",
+            "projectReferences": {}
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+        "warningProperties": {
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+        "restoreAuditProperties": {
+          "enableAudit": "true",
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+          "auditMode": "direct"
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+        "SdkAnalysisLevel": "9.0.200"
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+      "frameworks": {
+        "net9.0": {
+          "targetAlias": "net9.0",
+          "dependencies": {
+            "Dapper": {
+              "target": "Package",
+              "version": "[2.1.66, )"
+            },
+            "Microsoft.AspNetCore.OpenApi": {
+              "target": "Package",
+              "version": "[9.0.3, )"
+            },
+            "Microsoft.Data.SqlClient": {
+              "target": "Package",
+              "version": "[6.0.2, )"
+            }
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+          "imports": [
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+            "net462",
+            "net47",
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+            "net48",
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+          "assetTargetFallback": true,
+          "warn": true,
+          "frameworkReferences": {
+            "Microsoft.AspNetCore.App": {
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+            "Microsoft.NETCore.App": {
+              "privateAssets": "all"
+            }
+          },
+          "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\9.0.201/PortableRuntimeIdentifierGraph.json"
+        }
+      }
+    }
+  }
+}

Backend/GestionIntegral.Api/obj/GestionIntegral.Api.csproj.nuget.g.props

@@ -0,0 +1,16 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <RestoreSuccess Condition=" '$(RestoreSuccess)' == '' ">True</RestoreSuccess>
+    <RestoreTool Condition=" '$(RestoreTool)' == '' ">NuGet</RestoreTool>
+    <ProjectAssetsFile Condition=" '$(ProjectAssetsFile)' == '' ">$(MSBuildThisFileDirectory)project.assets.json</ProjectAssetsFile>
+    <NuGetPackageRoot Condition=" '$(NuGetPackageRoot)' == '' ">$(UserProfile)\.nuget\packages\</NuGetPackageRoot>
+    <NuGetPackageFolders Condition=" '$(NuGetPackageFolders)' == '' ">C:\Users\dmolinari\.nuget\packages\;C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages</NuGetPackageFolders>
+    <NuGetProjectStyle Condition=" '$(NuGetProjectStyle)' == '' ">PackageReference</NuGetProjectStyle>
+    <NuGetToolVersion Condition=" '$(NuGetToolVersion)' == '' ">6.13.1</NuGetToolVersion>
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+  <ItemGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <SourceRoot Include="C:\Users\dmolinari\.nuget\packages\" />
+    <SourceRoot Include="C:\Program Files (x86)\Microsoft Visual Studio\Shared\NuGetPackages\" />
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+</Project>

Backend/GestionIntegral.Api/obj/GestionIntegral.Api.csproj.nuget.g.targets

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ImportGroup Condition=" '$(ExcludeRestorePackageImports)' != 'true' ">
+    <Import Project="$(NuGetPackageRoot)microsoft.extensions.options\9.0.4\buildTransitive\net8.0\Microsoft.Extensions.Options.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.options\9.0.4\buildTransitive\net8.0\Microsoft.Extensions.Options.targets')" />
+    <Import Project="$(NuGetPackageRoot)microsoft.extensions.logging.abstractions\9.0.4\buildTransitive\net8.0\Microsoft.Extensions.Logging.Abstractions.targets" Condition="Exists('$(NuGetPackageRoot)microsoft.extensions.logging.abstractions\9.0.4\buildTransitive\net8.0\Microsoft.Extensions.Logging.Abstractions.targets')" />
+  </ImportGroup>
+</Project>

GestionIntegralWeb.sln

@@ -0,0 +1,29 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Backend", "Backend", "{1AE8ACA6-933B-BF2A-3671-3E2EAC007D16}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "GestionIntegral.Api", "Backend\GestionIntegral.Api\GestionIntegral.Api.csproj", "{0BDDD7BB-D884-750B-88D0-768E979C8F89}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{0BDDD7BB-D884-750B-88D0-768E979C8F89}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{0BDDD7BB-D884-750B-88D0-768E979C8F89}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{0BDDD7BB-D884-750B-88D0-768E979C8F89}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{0BDDD7BB-D884-750B-88D0-768E979C8F89}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(NestedProjects) = preSolution
+		{0BDDD7BB-D884-750B-88D0-768E979C8F89} = {1AE8ACA6-933B-BF2A-3671-3E2EAC007D16}
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {0A847EB9-3705-4088-827B-248420065D5F}
+	EndGlobalSection
+EndGlobal