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(#70) Export Html, Pdf Files
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‎.gitignore‎

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/src/Microservices/Services.Storage/ClassifiedAds.Services.Storage.Api/Migrations/
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/src/UIs/reactjs/.eslintcache
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.tye/
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.local-chromium/
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## Ignore Visual Studio temporary files, build results, and
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## files generated by popular Visual Studio add-ons.

‎src/Microservices/Common/ClassifiedAds.CrossCuttingConcerns/HtmlGenerator/IHtmlGenerator.cs‎

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using System.Threading.Tasks;
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namespace ClassifiedAds.CrossCuttingConcerns.HtmlGenerator
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{
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public interface IHtmlGenerator
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{
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Task<string> GenerateAsync(string template, object model);
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}
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}

‎src/Microservices/Common/ClassifiedAds.CrossCuttingConcerns/PdfConverter/IPdfConverter.cs‎

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using System.IO;
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using System.Threading.Tasks;
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namespace ClassifiedAds.CrossCuttingConcerns.PdfConverter
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{
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public interface IPdfConverter
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{
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Stream Convert(string html, PdfOptions pdfOptions = null);
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Task<Stream> ConvertAsync(string html, PdfOptions pdfOptions = null);
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}
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public class PdfOptions
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{
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/ClassifiedAds.Infrastructure.csproj‎

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<PackageReference Include="Confluent.Kafka" Version="1.5.2" />
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<PackageReference Include="CryptographyHelper" Version="1.0.0-beta4" />
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<PackageReference Include="Dapper.StrongName" Version="2.0.35" />
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<PackageReference Include="DinkToPdf" Version="1.0.8" />
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<PackageReference Include="Google.Protobuf" Version="3.10.0" />
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<PackageReference Include="Grpc.Net.Client" Version="2.25.0" />
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<PackageReference Include="IdentityModel" Version="4.4.0" />
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<PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.0.0-rc1.1" />
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<PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.0.0-rc1.1" />
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<PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.0.0-rc1.1" />
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<PackageReference Include="PuppeteerSharp" Version="4.0.0" />
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<PackageReference Include="RabbitMQ.Client" Version="6.2.1" />
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<PackageReference Include="RazorLight" Version="2.0.0-rc.3" />
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<PackageReference Include="SendGrid" Version="9.21.2" />
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<PackageReference Include="Serilog" Version="2.10.0" />
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<PackageReference Include="Serilog.AspNetCore" Version="3.4.0" />
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<ProjectReference Include="..\ClassifiedAds.Domain\ClassifiedAds.Domain.csproj" />
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</ItemGroup>
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<ItemGroup>
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<ContentWithTargetPath Include="..\libs\libwkhtmltox\libwkhtmltox-0.12.4-x64.dll">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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<TargetPath>libwkhtmltox.dll</TargetPath>
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</ContentWithTargetPath>
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<ContentWithTargetPath Include="..\libs\libwkhtmltox\libwkhtmltox-0.12.4-x64.so">
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<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
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<TargetPath>libwkhtmltox.so</TargetPath>
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</ContentWithTargetPath>
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</ItemGroup>
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</Project>

‎src/Microservices/Common/ClassifiedAds.Infrastructure/HtmlGenerators/HtmlGenerator.cs‎

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using ClassifiedAds.CrossCuttingConcerns.HtmlGenerator;
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using RazorLight;
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using System.Threading.Tasks;
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namespace ClassifiedAds.Infrastructure.HtmlGenerators
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{
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public class HtmlGenerator : IHtmlGenerator
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{
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private readonly IRazorLightEngine _razorLightEngine;
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public HtmlGenerator(IRazorLightEngine razorLightEngine)
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{
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_razorLightEngine = razorLightEngine;
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}
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public Task<string> GenerateAsync(string template, object model)
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{
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return _razorLightEngine.CompileRenderAsync(template, model);
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}
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/HtmlGenerators/HtmlGeneratorCollectionExtensions.cs‎

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using ClassifiedAds.CrossCuttingConcerns.HtmlGenerator;
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using ClassifiedAds.Infrastructure.HtmlGenerators;
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using RazorLight;
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using System;
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namespace Microsoft.Extensions.DependencyInjection
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{
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public static class HtmlGeneratorCollectionExtensions
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{
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public static IServiceCollection AddHtmlGenerator(this IServiceCollection services)
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{
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var engine = new RazorLightEngineBuilder()
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.UseFileSystemProject(Environment.CurrentDirectory)
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.UseMemoryCachingProvider()
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.Build();
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services.AddSingleton<IRazorLightEngine>(engine);
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services.AddSingleton<IHtmlGenerator, HtmlGenerator>();
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return services;
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}
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/DinkToPdf/DinkToPdfConverter.cs‎

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using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
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using DinkToPdf;
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using DinkToPdf.Contracts;
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using System.IO;
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using System.Threading.Tasks;
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namespace ClassifiedAds.Infrastructure.PdfConverters.DinkToPdf
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{
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public class DinkToPdfConverter : IPdfConverter
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{
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private readonly IConverter _converter;
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public DinkToPdfConverter(IConverter converter)
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{
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_converter = converter;
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}
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public Stream Convert(string html, PdfOptions pdfOptions = null)
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{
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var doc = new HtmlToPdfDocument()
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{
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GlobalSettings =
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{
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ColorMode = ColorMode.Color,
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Orientation = Orientation.Portrait,
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PaperSize = PaperKind.A4,
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Margins = new MarginSettings() { Top = 10, Bottom = 15, Left = 10, Right = 10 },
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},
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Objects =
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{
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new ObjectSettings()
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{
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PagesCount = true,
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HtmlContent = html,
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WebSettings = { DefaultEncoding = "utf-8", Background = true },
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HeaderSettings = { FontSize = 9, Right = "Page [page] of [toPage]", Line = true, Spacing = 2.812 },
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},
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},
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};
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byte[] pdf = _converter.Convert(doc);
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return new MemoryStream(pdf);
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}
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public Task<Stream> ConvertAsync(string html, PdfOptions pdfOptions = null)
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{
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return Task.FromResult(Convert(html, pdfOptions));
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}
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/DinkToPdf/DinkToPdfConverterCollectionExtensions.cs‎

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using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
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using ClassifiedAds.Infrastructure.PdfConverters.DinkToPdf;
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using DinkToPdf;
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using DinkToPdf.Contracts;
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namespace Microsoft.Extensions.DependencyInjection
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{
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public static class DinkToPdfConverterCollectionExtensions
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{
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public static IServiceCollection AddDinkToPdfConverter(this IServiceCollection services)
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{
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services.AddSingleton(typeof(IConverter), new SynchronizedConverter(new PdfTools()));
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services.AddSingleton<IPdfConverter, DinkToPdfConverter>();
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return services;
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}
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/PuppeteerSharp/PuppeteerSharpConverter.cs‎

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using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
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using PuppeteerSharp;
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using System.IO;
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using System.Threading.Tasks;
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namespace ClassifiedAds.Infrastructure.PdfConverters.PuppeteerSharp
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{
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public class PuppeteerSharpConverter : IPdfConverter
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{
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public Stream Convert(string html, CrossCuttingConcerns.PdfConverter.PdfOptions pdfOptions = null)
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{
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return ConvertAsync(html, pdfOptions).GetAwaiter().GetResult();
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}
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public async Task<Stream> ConvertAsync(string html, CrossCuttingConcerns.PdfConverter.PdfOptions pdfOptions = null)
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{
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await using var browser = await Puppeteer.LaunchAsync(new LaunchOptions { Headless = true });
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await using var page = await browser.NewPageAsync();
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await page.SetContentAsync(html);
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return new MemoryStream(await page.PdfDataAsync(new global::PuppeteerSharp.PdfOptions
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{
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PrintBackground = true,
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}));
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}
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}
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}

‎src/Microservices/Common/ClassifiedAds.Infrastructure/PdfConverters/PuppeteerSharp/PuppeteerSharpConverterCollectionExtensions.cs‎

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using ClassifiedAds.CrossCuttingConcerns.PdfConverter;
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using ClassifiedAds.Infrastructure.PdfConverters.PuppeteerSharp;
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using PuppeteerSharp;
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namespace Microsoft.Extensions.DependencyInjection
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{
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public static class PuppeteerSharpConverterCollectionExtensions
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{
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public static IServiceCollection AddPuppeteerSharpPdfConverter(this IServiceCollection services)
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{
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var browserFetcher = new BrowserFetcher();
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browserFetcher.DownloadAsync().GetAwaiter().GetResult();
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services.AddSingleton<IPdfConverter, PuppeteerSharpConverter>();
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return services;
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}
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}
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}

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