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Pomelo.EntityFrameworkCore.MySql

Pomelo.EntityFrameworkCore.MySql is the most popular Entity Framework Core provider for MySQL compatible databases. It supports EF Core up to its latest version and uses MySqlConnector for high-performance database server communication.

Compatibility

Dependencies

The following versions of MySqlConnector, EF Core, .NET (Core), .NET Standard and .NET Framework are compatible with published releases of Pomelo.EntityFrameworkCore.MySql:

Release	Branch	MySqlConnector	EF Core	.NET (Core)	.NET Standard	.NET Framework
9.0.0-<br />preview.1	main	>= 2.3.5	9.0.0-<br />preview.1	8.0+	-	-
8.0.2	8.0-maint	>= 2.3.5	8.0.2	8.0+	-	-
7.0.0	7.0-maint	>= 2.2.5	7.0.x	6.0+	-	-
6.0.3	6.0-maint	>= 2.1.2	6.0.x	6.0+	-	-
5.0.4	5.0-maint	>= 1.3.13	5.0.x	3.0+	2.1	-
3.2.7	3.2-maint	>= 0.69.10 < 1.0.0	3.1.x	2.0+	2.0	4.6.1+

Packages

Supported Database Servers and Versions

Pomelo.EntityFrameworkCore.MySql is tested against all actively maintained versions of MySQL and MariaDB. Older versions (e.g. MySQL 5.7) and other server implementations (e.g. Amazon Aurora) are usually compatible to a high degree as well, but are not tested as part of our CI.

Officially supported versions are:

MySQL 8.0
MariaDB 11.3
MariaDB 11.2
MariaDB 11.1
MariaDB 11.0
MariaDB 10.11 (LTS)
MariaDB 10.6 (LTS)
MariaDB 10.5 (LTS)
MariaDB 10.4 (LTS)

Schedule and Roadmap

Milestone	Status	Release Date
9.0.0-preview.1	Released	2024-02-28 (see #1841)
8.0.2	Released	2024-03-16
7.0.0	Released	2023-01-16
6.0.3	Released	2024-03-16
5.0.4	Released	2022-01-22
3.2.7	Released	2021-10-04

Nightly Builds

To use nightly builds from our Azure DevOps feed, add a NuGet.config file to your solution root with the following content and enable prereleases:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <packageSources>
        <add key="pomelo-nightly" value="https://pkgs.dev.azure.com/pomelo-efcore/Pomelo.EntityFrameworkCore.MySql/_packaging/pomelo-efcore-public/nuget/v3/index.json" />
        <add key="nuget.org" value="https://api.nuget.org/v3/index.json" />
    </packageSources>
</configuration>

Feeds

Feeds that contain optimized (Release configuration) builds:

https://pkgs.dev.azure.com/pomelo-efcore/Pomelo.EntityFrameworkCore.MySql/_packaging/pomelo-efcore-public/nuget/v3/index.json
https://www.myget.org/F/pomelo/api/v3/index.json

Feeds that contain debugging enabled unoptimized (Debug configuration) builds:

https://pkgs.dev.azure.com/pomelo-efcore/Pomelo.EntityFrameworkCore.MySql/_packaging/pomelo-efcore-debug/nuget/v3/index.json
https://www.myget.org/F/pomelo-debug/api/v3/index.json

The AZDO nupkg packages always contain .pdb files.

The MyGet nupkg packages only contain .pdb files for their debug builds. For optimized builds, the symbols are packed in a snupkg file and are available via the https://www.myget.org/F/pomelo/api/v2/symbolpackage/ symbol server URL.

All .pdb files use Source Link.

Getting Started

1. Project Configuration

Ensure that your .csproj file contains the following reference:

<PackageReference Include="Pomelo.EntityFrameworkCore.MySql" Version="8.0.2" />

2. Services Configuration

Add Pomelo.EntityFrameworkCore.MySql to the services configuration in your the Startup.cs file of your ASP.NET Core project:

public class Startup
{
    public void ConfigureServices(IServiceCollection services)
    {
        // Replace with your connection string.
        var connectionString = "server=localhost;user=root;password=1234;database=ef";

        // Replace with your server version and type.
        // Use 'MariaDbServerVersion' for MariaDB.
        // Alternatively, use 'ServerVersion.AutoDetect(connectionString)'.
        // For common usages, see pull request #1233.
        var serverVersion = new MySqlServerVersion(new Version(8, 0, 36));

        // Replace 'YourDbContext' with the name of your own DbContext derived class.
        services.AddDbContext<YourDbContext>(
            dbContextOptions => dbContextOptions
                .UseMySql(connectionString, serverVersion)
                // The following three options help with debugging, but should
                // be changed or removed for production.
                .LogTo(Console.WriteLine, LogLevel.Information)
                .EnableSensitiveDataLogging()
                .EnableDetailedErrors()
        );
    }
}

View our Configuration Options Wiki Page for a list of common options.

3. Sample Application

Check out our Integration Tests for an example repository that includes an ASP.NET Core MVC Application.

There are also many complete and concise console application samples posted in the issue section (some of them can be found by searching for Program.cs).

4. Read the EF Core Documentation

Refer to Microsoft's EF Core Documentation for detailed instructions and examples on using EF Core.

Scaffolding / Reverse Engineering

Use the EF Core tools to execute scaffolding commands:

dotnet ef dbcontext scaffold "Server=localhost;User=root;Password=1234;Database=ef" "Pomelo.EntityFrameworkCore.MySql"

Contribute

One of the easiest ways to contribute is to report issues, participate in discussions and update the wiki docs. You can also contribute by submitting pull requests with code changes and supporting tests.

We are always looking for additional core contributors. If you got a couple of hours a week and know your way around EF Core and MySQL, give us a nudge.

License

MIT