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Merge pull request dodyg#246 from koskila/item/azurefunctions-dbcontext-sample
Item/azurefunctions dbcontext sample
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‎README.md‎

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# 320 Samples for ASP.NET Core 3.1.300 and ASP.NET Core 5 RC2
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# 324 Samples for ASP.NET Core 3.1.300 and ASP.NET Core 5 RC2
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## People of Beirut needs our help. [Please support them](https://lebanoncrisis.carrd.co/#donate).
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| [Generic Hosting](/projects/generic-host) | (9) | [Uri Helper](/projects/uri-helper) | (5) |
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| [gRPC](/projects/grpc) (including grpc-Web) | (12) | [Web Sockets](/projects/web-sockets) | (5) |
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| [Logging](/projects/logging) | (2) | [Web Utilities](/projects/web-utilities) | (3) |
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| [Localization and Globalization](projects/localization) | (6) | [Azure Functions](/projects/azure-functions) | (1) |
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| [Localization and Globalization](projects/localization) | (6) | [Azure Functions](/projects/azure-functions) | (2) |
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| [Single File Application](projects/5-0/sfa) - C# 9, ASP.NET Core 5| (1) | For Data Access samples, go to the excellent [ORM Cookbook](https://github.com/Grauenwolf/DotNet-ORM-Cookbook). | |
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| | 125 | | 143 |
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| | 138 | | 144 |
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## How to run these samples
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To run these samples, simply open your command line console, go to each folder and execute `dotnet watch run`.
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This example shows how to enable image resizing functionality to your site. It's super easy and the middleware takes care of caching, etc.
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### Azure Functions (1)
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### Azure Functions (2)
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These samples show you how to achieve different scenarios without out-of-the-box templates, such as referencing an Entity Framework Core database context in the function.
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* [How to modify Startup.cs in an Azure Function?](/projects/azure-functions/StartupExample)
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The sample shows how you can add your own code to the startup of the Azure Functions host by adding a custom Startup class.
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* [How to include an EF Core dbcontext in an Azure Function?](/projects/azure-functions/DbContextExample)
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The sample shows an example on how to include an Entity Framework Core database context in your Azure Function, and access entities in it.
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## Misc
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‎projects/azure-functions/DbContextExample/Data/ApplicationDbContext.cs‎

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using DataLayer.Entities;
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using Microsoft.EntityFrameworkCore;
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namespace DataLayer
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{
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public class ApplicationDbContext : DbContext
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{
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public DbSet<Entity> Entities { get; set; }
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public ApplicationDbContext(DbContextOptions<ApplicationDbContext> options) : base(options)
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{
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}
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public ApplicationDbContext(DbContextOptions options) : base(options)
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{
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}
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public ApplicationDbContext() : base()
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{
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}
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protected override void OnConfiguring(DbContextOptionsBuilder options) => options.UseSqlServer("Server=(localdb)\\mssqllocaldb;Database=mydb;Trusted_Connection=True;MultipleActiveResultSets=True");
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}
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}

‎projects/azure-functions/DbContextExample/Data/DataLayer.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<TargetFramework>netcoreapp3.1</TargetFramework>
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<!--<SkipFunctionsDepsCopy>true</SkipFunctionsDepsCopy>-->
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.1.9" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="3.1.9" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.9" />
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<PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="3.1.9" />
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</ItemGroup>
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</Project>

‎projects/azure-functions/DbContextExample/Data/Entities/Entity.cs‎

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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.Text;
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namespace DataLayer.Entities
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{
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public class Entity
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{
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[Key]
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public int Id { get; set; }
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public string Name { get; set; }
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public string Description { get; set; }
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}
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}

‎projects/azure-functions/DbContextExample/Data/Migrations/20201020183453_Initial.Designer.cs‎

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‎projects/azure-functions/DbContextExample/Data/Migrations/20201020183453_Initial.cs‎

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using Microsoft.EntityFrameworkCore.Migrations;
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namespace DataLayer.Migrations
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{
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public partial class Initial : Migration
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{
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protected override void Up(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.CreateTable(
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name: "Entities",
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columns: table => new
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{
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Id = table.Column<int>(nullable: false)
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.Annotation("SqlServer:Identity", "1, 1"),
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Name = table.Column<string>(nullable: true),
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Description = table.Column<string>(nullable: true)
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},
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constraints: table =>
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{
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table.PrimaryKey("PK_Entities", x => x.Id);
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});
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}
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protected override void Down(MigrationBuilder migrationBuilder)
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{
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migrationBuilder.DropTable(
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name: "Entities");
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}
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}
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}

‎projects/azure-functions/DbContextExample/Data/Migrations/ApplicationDbContextModelSnapshot.cs‎

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// <auto-generated />
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using DataLayer;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.EntityFrameworkCore.Infrastructure;
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using Microsoft.EntityFrameworkCore.Metadata;
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using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
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namespace DataLayer.Migrations
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{
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[DbContext(typeof(ApplicationDbContext))]
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partial class ApplicationDbContextModelSnapshot : ModelSnapshot
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{
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protected override void BuildModel(ModelBuilder modelBuilder)
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{
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#pragma warning disable 612, 618
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modelBuilder
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.HasAnnotation("ProductVersion", "3.1.0")
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.HasAnnotation("Relational:MaxIdentifierLength", 128)
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.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
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modelBuilder.Entity("DataLayer.Entities.Entity", b =>
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{
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b.Property<int>("Id")
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.ValueGeneratedOnAdd()
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.HasColumnType("int")
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.HasAnnotation("SqlServer:ValueGenerationStrategy", SqlServerValueGenerationStrategy.IdentityColumn);
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b.Property<string>("Description")
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.HasColumnType("nvarchar(max)");
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b.Property<string>("Name")
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.HasColumnType("nvarchar(max)");
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b.HasKey("Id");
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b.ToTable("Entities");
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});
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#pragma warning restore 612, 618
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}
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}
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}

‎projects/azure-functions/DbContextExample/DbContextExample.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.30309.148
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DataLayer", "Data\DataLayer.csproj", "{30BD593E-8752-4661-9FCB-E97AD112ED4C}"
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EndProject
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Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Function", "Function\Function.csproj", "{E8020AA9-4E33-4049-8B8A-0B4965AEA3F6}"
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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
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{30BD593E-8752-4661-9FCB-E97AD112ED4C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{30BD593E-8752-4661-9FCB-E97AD112ED4C}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{30BD593E-8752-4661-9FCB-E97AD112ED4C}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{30BD593E-8752-4661-9FCB-E97AD112ED4C}.Release|Any CPU.Build.0 = Release|Any CPU
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{E8020AA9-4E33-4049-8B8A-0B4965AEA3F6}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{E8020AA9-4E33-4049-8B8A-0B4965AEA3F6}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{E8020AA9-4E33-4049-8B8A-0B4965AEA3F6}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{E8020AA9-4E33-4049-8B8A-0B4965AEA3F6}.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
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {0B791877-6A94-4F1E-B3BB-C425B9B66B27}
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EndGlobalSection
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EndGlobal

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