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.NET 8 sample projects
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‎OpenTracing.Contrib.sln

+38
Original file line numberDiff line numberDiff line change
@@ -67,6 +67,18 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Shared", "samples\net7.0\Sh
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TrafficGenerator", "samples\net7.0\TrafficGenerator\TrafficGenerator.csproj", "{69E6E77E-646D-475A-9B6B-C5511C21B11C}"
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EndProject
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Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "net8.0", "net8.0", "{71609BAA-55BF-4A0A-AE05-83D87644E44C}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CustomersApi", "samples\net8.0\CustomersApi\CustomersApi.csproj", "{0DF66128-3C35-4301-98E2-8822FB56B146}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "FrontendWeb", "samples\net8.0\FrontendWeb\FrontendWeb.csproj", "{744E71C6-79A5-4566-BCBA-221AF084A7EF}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "OrdersApi", "samples\net8.0\OrdersApi\OrdersApi.csproj", "{63E80769-4B3E-4897-ABD1-237226ED0629}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Shared", "samples\net8.0\Shared\Shared.csproj", "{05A112D5-65C4-4F7C-A974-94E5EFBE32DC}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TrafficGenerator", "samples\net8.0\TrafficGenerator\TrafficGenerator.csproj", "{67A203A9-9EAC-4375-9A32-E42E91C8AA22}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
@@ -145,6 +157,26 @@ Global
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{69E6E77E-646D-475A-9B6B-C5511C21B11C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{69E6E77E-646D-475A-9B6B-C5511C21B11C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{69E6E77E-646D-475A-9B6B-C5511C21B11C}.Release|Any CPU.Build.0 = Release|Any CPU
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{0DF66128-3C35-4301-98E2-8822FB56B146}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{0DF66128-3C35-4301-98E2-8822FB56B146}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{0DF66128-3C35-4301-98E2-8822FB56B146}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{0DF66128-3C35-4301-98E2-8822FB56B146}.Release|Any CPU.Build.0 = Release|Any CPU
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{744E71C6-79A5-4566-BCBA-221AF084A7EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{744E71C6-79A5-4566-BCBA-221AF084A7EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{744E71C6-79A5-4566-BCBA-221AF084A7EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{744E71C6-79A5-4566-BCBA-221AF084A7EF}.Release|Any CPU.Build.0 = Release|Any CPU
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{63E80769-4B3E-4897-ABD1-237226ED0629}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{63E80769-4B3E-4897-ABD1-237226ED0629}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{63E80769-4B3E-4897-ABD1-237226ED0629}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{63E80769-4B3E-4897-ABD1-237226ED0629}.Release|Any CPU.Build.0 = Release|Any CPU
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{05A112D5-65C4-4F7C-A974-94E5EFBE32DC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{05A112D5-65C4-4F7C-A974-94E5EFBE32DC}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{05A112D5-65C4-4F7C-A974-94E5EFBE32DC}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{05A112D5-65C4-4F7C-A974-94E5EFBE32DC}.Release|Any CPU.Build.0 = Release|Any CPU
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{67A203A9-9EAC-4375-9A32-E42E91C8AA22}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{67A203A9-9EAC-4375-9A32-E42E91C8AA22}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{67A203A9-9EAC-4375-9A32-E42E91C8AA22}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{67A203A9-9EAC-4375-9A32-E42E91C8AA22}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
@@ -171,6 +203,12 @@ Global
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{48CD3687-6EB7-47CD-A611-8D579FBCBB3B} = {E46F4333-859A-4CC5-BD2A-7FE8892861BE}
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{B4A8B209-AA79-4C34-9A12-F03E3423B330} = {E46F4333-859A-4CC5-BD2A-7FE8892861BE}
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{69E6E77E-646D-475A-9B6B-C5511C21B11C} = {E46F4333-859A-4CC5-BD2A-7FE8892861BE}
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{71609BAA-55BF-4A0A-AE05-83D87644E44C} = {36333C22-54F7-403C-ABC4-BECE4EE3F52D}
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{0DF66128-3C35-4301-98E2-8822FB56B146} = {71609BAA-55BF-4A0A-AE05-83D87644E44C}
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{744E71C6-79A5-4566-BCBA-221AF084A7EF} = {71609BAA-55BF-4A0A-AE05-83D87644E44C}
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{63E80769-4B3E-4897-ABD1-237226ED0629} = {71609BAA-55BF-4A0A-AE05-83D87644E44C}
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{05A112D5-65C4-4F7C-A974-94E5EFBE32DC} = {71609BAA-55BF-4A0A-AE05-83D87644E44C}
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{67A203A9-9EAC-4375-9A32-E42E91C8AA22} = {71609BAA-55BF-4A0A-AE05-83D87644E44C}
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {832F86C2-4B74-4259-8073-04EE0C37FBCD}

‎samples/net8.0/CustomersApi/CustomersApi.csproj

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\Shared\Shared.csproj" />
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<ProjectReference Include="..\..\..\src\OpenTracing.Contrib.NetCore\OpenTracing.Contrib.NetCore.csproj" />
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</ItemGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="[8.0.0,9)" />
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<PackageReference Include="Microsoft.Extensions.Diagnostics.HealthChecks.EntityFrameworkCore" Version="[8.0.0,9)" />
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</ItemGroup>
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</Project>

‎samples/net8.0/CustomersApi/DataStore/CustomerDbContext.cs

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using Microsoft.EntityFrameworkCore;
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using Shared;
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namespace CustomersApi.DataStore;
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public class CustomerDbContext : DbContext
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{
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public CustomerDbContext(DbContextOptions<CustomerDbContext> options)
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: base(options)
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{
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}
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public DbSet<Customer> Customers => Set<Customer>();
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public void Seed()
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{
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if (Database.EnsureCreated())
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{
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Database.Migrate();
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Customers.Add(new Customer(1, "Marcel Belding"));
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Customers.Add(new Customer(2, "Phyllis Schriver"));
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Customers.Add(new Customer(3, "Estefana Balderrama"));
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Customers.Add(new Customer(4, "Kenyetta Lone"));
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Customers.Add(new Customer(5, "Vernita Fernald"));
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Customers.Add(new Customer(6, "Tessie Storrs"));
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SaveChanges();
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}
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}
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}

‎samples/net8.0/CustomersApi/Program.cs

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using CustomersApi.DataStore;
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using Microsoft.EntityFrameworkCore;
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using Shared;
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var builder = WebApplication.CreateBuilder(args);
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// Add services to the container.
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builder.WebHost.UseUrls(Constants.CustomersUrl);
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// Registers and starts Jaeger (see Shared.JaegerServiceCollectionExtensions)
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builder.Services.AddJaeger();
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// Enables OpenTracing instrumentation for ASP.NET Core, CoreFx, EF Core
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builder.Services.AddOpenTracing(ot =>
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{
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ot.ConfigureAspNetCore(options =>
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{
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// We don't need any tracing data for our health endpoint.
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options.Hosting.IgnorePatterns.Add(ctx => ctx.Request.Path == "/health");
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});
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ot.ConfigureEntityFrameworkCore(options =>
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{
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// This is an example for how certain EF Core commands can be ignored.
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// As en example, we're ignoring the "PRAGMA foreign_keys=ON;" commands that are executed by Sqlite.
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// Remove this code to see those statements.
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options.IgnorePatterns.Add(cmd => cmd.Command.CommandText.StartsWith("PRAGMA"));
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});
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});
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// Adds a Sqlite DB to show EFCore traces.
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builder.Services.AddDbContext<CustomerDbContext>(options =>
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{
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options.UseSqlite("Data Source=DataStore/customers.db");
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});
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builder.Services.AddHealthChecks()
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.AddDbContextCheck<CustomerDbContext>();
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var app = builder.Build();
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// Load some dummy data into the db.
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using (var scope = app.Services.CreateScope())
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{
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var dbContext = scope.ServiceProvider.GetRequiredService<CustomerDbContext>();
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dbContext.Seed();
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}
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// Configure the HTTP request pipeline.
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app.MapGet("/", () => "Customers API");
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app.MapHealthChecks("/health");
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app.MapGet("/customers", async (CustomerDbContext dbContext) => await dbContext.Customers.ToListAsync());
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app.MapGet("/customers/{id}", async (int id, CustomerDbContext dbContext, ILogger<Program> logger) =>
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{
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var customer = await dbContext.Customers.FirstOrDefaultAsync(x => x.CustomerId == id);
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if (customer == null)
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return Results.NotFound();
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// ILogger events are sent to OpenTracing as well!
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logger.LogInformation("Returning data for customer {CustomerId}", id);
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return Results.Ok(customer);
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});
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app.Run();

‎samples/net8.0/CustomersApi/Properties/launchSettings.json

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{
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"profiles": {
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"CustomersApi": {
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"commandName": "Project",
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"launchBrowser": false,
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"launchUrl": "http://localhost:5001",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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}
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}
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}

‎samples/net8.0/CustomersApi/appsettings.json

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

‎samples/net8.0/FrontendWeb/Controllers/HomeController.cs

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using System.Text;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.Rendering;
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using Newtonsoft.Json;
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using Shared;
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namespace FrontendWeb.Controllers;
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public class HomeController : Controller
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{
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private readonly HttpClient _httpClient;
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public HomeController(HttpClient httpClient)
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{
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_httpClient = httpClient;
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}
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[HttpGet]
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public IActionResult Index()
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{
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return View();
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}
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[HttpGet]
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public async Task<IActionResult> PlaceOrder()
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{
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ViewBag.Customers = await GetCustomers();
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return View(new PlaceOrderCommand { ItemNumber = "ABC11", Quantity = 1 });
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}
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[HttpPost, ValidateAntiForgeryToken]
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public async Task<IActionResult> PlaceOrder(PlaceOrderCommand cmd)
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{
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if (!ModelState.IsValid)
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{
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ViewBag.Customers = await GetCustomers();
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return View(cmd);
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}
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string body = JsonConvert.SerializeObject(cmd);
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var request = new HttpRequestMessage
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{
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Method = HttpMethod.Post,
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RequestUri = new Uri(Constants.OrdersUrl + "orders"),
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Content = new StringContent(body, Encoding.UTF8, "application/json")
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};
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await _httpClient.SendAsync(request);
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return RedirectToAction("Index");
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}
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private async Task<IEnumerable<SelectListItem>> GetCustomers()
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{
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var request = new HttpRequestMessage
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{
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Method = HttpMethod.Get,
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RequestUri = new Uri(Constants.CustomersUrl + "customers")
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};
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var response = await _httpClient.SendAsync(request);
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response.EnsureSuccessStatusCode();
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var body = await response.Content.ReadAsStringAsync();
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return JsonConvert.DeserializeObject<List<Customer>>(body)
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.Select(x => new SelectListItem { Value = x.CustomerId.ToString(), Text = x.Name });
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}
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}

‎samples/net8.0/FrontendWeb/FrontendWeb.csproj

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<Project Sdk="Microsoft.NET.Sdk.Web">
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<PropertyGroup>
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<TargetFramework>net8.0</TargetFramework>
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<Nullable>enable</Nullable>
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<ImplicitUsings>enable</ImplicitUsings>
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</PropertyGroup>
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<ItemGroup>
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<ProjectReference Include="..\Shared\Shared.csproj" />
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<ProjectReference Include="..\..\..\src\OpenTracing.Contrib.NetCore\OpenTracing.Contrib.NetCore.csproj" />
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</ItemGroup>
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</Project>

‎samples/net8.0/FrontendWeb/Program.cs

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using Shared;
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var builder = WebApplication.CreateBuilder(args);
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// Add services to the container.
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builder.WebHost.UseUrls(Constants.FrontendUrl);
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// Registers and starts Jaeger (see Shared.JaegerServiceCollectionExtensions)
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builder.Services.AddJaeger();
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// Enables OpenTracing instrumentation for ASP.NET Core, CoreFx, EF Core
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builder.Services.AddOpenTracing();
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builder.Services.AddSingleton<HttpClient>();
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builder.Services.AddMvc();
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var app = builder.Build();
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// Configure the HTTP request pipeline.
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app.MapDefaultControllerRoute();
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app.Run();

‎samples/net8.0/FrontendWeb/Properties/launchSettings.json

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{
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"profiles": {
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"FrontendWeb": {
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"commandName": "Project",
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"launchBrowser": false,
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"launchUrl": "http://localhost:5000",
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"environmentVariables": {
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"ASPNETCORE_ENVIRONMENT": "Development"
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}
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}
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}
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}

‎samples/net8.0/FrontendWeb/Views/Home/Index.cshtml

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<!DOCTYPE html>
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<meta charset="utf-8">
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<title>FrontendWeb</title>
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<h1>FrontendWeb</h1>
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<p>This is the beautiful web frontend.</p>
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<p>Refresh this page a few times and check the Jaeger UI - you should already see traces!</p>
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<p><a asp-action="PlaceOrder">Place an order</a></p>

‎samples/net8.0/FrontendWeb/Views/Home/PlaceOrder.cshtml

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@model Shared.PlaceOrderCommand
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<!DOCTYPE html>
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<meta charset="utf-8">
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<title>FrontendWeb</title>
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<h1>FrontendWeb</h1>
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<p>Place an order</p>
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<form asp-action="PlaceOrder" asp-antiforgery="true">
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<div>Customer: @Html.DropDownListFor(x => x.CustomerId, (IEnumerable<SelectListItem>)ViewBag.Customers)</div>
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<div>ItemNumber: @Html.TextBoxFor(x => x.ItemNumber)</div>
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<div>Quantity: @Html.TextBoxFor(x => x.Quantity)</div>
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<input type="submit" value="Place order"/>
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</form>

‎samples/net8.0/FrontendWeb/Views/_ViewImports.cshtml

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@using FrontendWeb
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@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers

‎samples/net8.0/FrontendWeb/appsettings.json

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{
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"Logging": {
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"IncludeScopes": false,
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"LogLevel": {
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"Default": "Debug",
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"System": "Information",
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"Microsoft": "Information",
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"OpenTracing": "Debug"
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}
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}
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}

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