Update SurveyLib and add Excel export functionality

SurveyBackend/SurveyBackend.API/Controllers/ExportController.cs

@@ -0,0 +1,26 @@
+using Microsoft.AspNetCore.Mvc;
+using SurveyLib.Tools.Tools;
+
+namespace SurveyBackend.Controllers;
+
+[ApiController]
+[Route("api/export")]
+public class ExportController
+{
+    private readonly TableExporter _tableExporter;
+
+    public ExportController(TableExporter tableExporter)
+    {
+        _tableExporter = tableExporter;
+    }
+
+    [HttpGet("excel/{surveyId:int}")]
+    public async Task<IActionResult> ExportSurveyById(int surveyId)
+    {
+        var fileBytes = await _tableExporter.ExportDataBySurveyIdAsync(surveyId);
+        return new FileContentResult(fileBytes, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
+        {
+            FileDownloadName = $"survey_{surveyId}_{DateTime.UtcNow:yyyyMMdd_HHmmss}.xlsx"
+        };
+    }
+}

SurveyBackend/SurveyBackend.API/Program.cs

@@ -12,6 +12,7 @@ using SurveyBackend.Middlewares;
 using SurveyBackend.Services;
 using SurveyLib.Infrastructure.EFCore;
 using SurveyLib.Infrastructure.EFCore.Data;
+using SurveyLib.Tools.Tools;
 
 namespace SurveyBackend;
 
@@ -38,6 +39,8 @@ public class Program
         builder.Services.AddSurveyLibInfrastructure();
         builder.Services.AddSurveyBackendServices();
 
+        builder.Services.AddScoped<TableExporter>();
+
         builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
             .AddJwtBearer(options =>
             {

SurveyBackend/SurveyBackend.API/SurveyBackend.API.csproj

@@ -33,6 +33,7 @@
     </ItemGroup>
 
     <ItemGroup>
+        <ProjectReference Include="..\..\SurveyLib\SurveyLib.Tools\SurveyLib.Tools.csproj" />
         <ProjectReference Include="..\SurveyBackend.Core\SurveyBackend.Core.csproj"/>
         <ProjectReference Include="..\SurveyBackend.Infrastructure\SurveyBackend.Infrastructure.csproj"/>
         <ProjectReference Include="..\SurveyBackend.Services\SurveyBackend.Services.csproj"/>