Projektdateien hinzufügen.

LeadsApi.sln

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+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32112.339
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "LeadsApi", "LeadsApi\LeadsApi.csproj", "{9BB832F5-7A14-4515-AC8C-2C5BAD1AF880}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9BB832F5-7A14-4515-AC8C-2C5BAD1AF880}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9BB832F5-7A14-4515-AC8C-2C5BAD1AF880}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9BB832F5-7A14-4515-AC8C-2C5BAD1AF880}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9BB832F5-7A14-4515-AC8C-2C5BAD1AF880}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {2B1393CD-190F-4143-AEA3-F0C282C62761}
+	EndGlobalSection
+EndGlobal

LeadsApi/EFCoreModels/Lead.cs

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+using System;
+using System.Collections.Generic;
+
+namespace LeadsApi.EFCoreModels
+{
+    public partial class Lead
+    {
+        public int? Id { get; set; }
+        public string? Name { get; set; }
+        public string? ZipCode { get; set; }
+        public double? ConversionProb { get; set; }
+    }
+}

LeadsApi/EFCoreModels/LeadsDatabaseContext.cs

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+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Metadata;
+
+namespace LeadsApi.EFCoreModels
+{
+    public partial class LeadsDatabaseContext : DbContext
+    {
+        public LeadsDatabaseContext()
+        {
+        }
+
+        public LeadsDatabaseContext(DbContextOptions<LeadsDatabaseContext> options)
+            : base(options)
+        {
+        }
+
+        public virtual DbSet<Lead> Leads { get; set; } = null!;
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (!optionsBuilder.IsConfigured)
+            {
+                optionsBuilder.UseSqlite("Name=ConnectionStrings:LeadsDatabaseContext");
+            }
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<Lead>(entity =>
+            {
+                entity.HasNoKey();
+
+                entity.ToTable("Lead");
+
+                entity.Property(e => e.Id).HasColumnType("Integer");
+            });
+
+            OnModelCreatingPartial(modelBuilder);
+        }
+
+        partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+    }
+}

LeadsApi/LeadsApi.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="6.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="6.0.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="6.0.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.1">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+</Project>

LeadsApi/Program.cs

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+using Microsoft.EntityFrameworkCore;
+using LeadsApi.EFCoreModels;
+
+var builder = WebApplication.CreateBuilder(args);
+builder.Services.AddDbContext<LeadsDatabaseContext>(opt =>
+    opt.UseSqlite("Filename=LeadsDatabase.db"));
+builder.Services.AddDatabaseDeveloperPageExceptionFilter();
+
+var app = builder.Build();
+
+app.MapGet("/", () => "Welcome to the Leads-API!");
+
+app.MapGet("/leads", async (LeadsDatabaseContext dbContext) =>
+    await dbContext.Leads.Select(lead => lead).ToListAsync());
+
+app.MapGet("/leads/{name}", async (string name, LeadsDatabaseContext dbContext) => 
+    await dbContext.Leads
+    .Where(lead => lead.Name.Contains(name))
+    .Select(lead => lead)
+    .ToListAsync());
+
+
+app.Run();

LeadsApi/Properties/launchSettings.json

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+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:24141",
+      "sslPort": 0
+    }
+  },
+  "profiles": {
+    "LeadsApi": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "",
+      "applicationUrl": "http://localhost:5107",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

LeadsApi/appsettings.Development.json

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

LeadsApi/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "ConnectionStrings": {
+    "LeadsDatabaseContext": "Data Source=LeadsDatabase.db"
+    // How to use in CLI for dotnet ef: 
+    // dotnet ef dbcontext scaffold Name=ConnectionStrings:LeadsDatabaseContext
+    // -o EFCoreModels Microsoft.EntityFrameworkCore.Sqlite --no-build
+  },
+  "AllowedHosts": "*"
+}

LeadsApi/create_leads_database.py

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+#!/usr/bin/env python3
+
+"""
+Autor: Halil Ibrahim Özcan
+Beschreibung:
+    Erstellt eine neue SQLite-Datenbank und füllt diese
+    mit Test-Daten
+"""
+
+import sqlite3
+import random
+
+
+Id = [i for i in range(10)]
+
+names = ['Mayra Ewing',
+            'Emery Roach',
+            'Ryan Galloway',
+            'Jamir Oneill',
+            'Carl Bailey',
+            'Ashlynn Scott',
+            'Ryland Yoder',
+            'Lucian Barajas',
+            'Dania Lopez',
+            'Wesley Key']
+
+zip_codes = ["30223",
+            "22003",
+            "92111",
+            "99504",
+            "14580",
+            "10956",
+            "10512",
+            "08817",
+            "20815",
+            "23059"]
+
+random_probs = [round(random.uniform(0, 1), 2) for i in  range(10)]
+
+zipped_data = list(zip(Id, names, zip_codes, random_probs))
+
+def main():
+    try:
+        connection = sqlite3.connect("LeadsDatabase.db")
+        create_db_sql = '''CREATE TABLE IF NOT EXISTS
+                            Lead (Id Integer,
+                                   Name TEXT,
+                                   ZipCode TEXT,
+                                   ConversionProb REAL);'''
+        connection.execute(create_db_sql)
+        insert_data_sql = "INSERT INTO Lead VALUES(?, ?, ?, ?)"
+        connection.executemany(insert_data_sql, zipped_data)
+
+    except ConnectionError as e:
+        print(e)
+
+    finally:
+        if connection:
+            connection.commit()
+            connection.close()
+
+
+if __name__ == '__main__':
+    main()