Minimal API in .NET 6 using multiple files

user_577805 0
Viewed 2314

In Net 6 it is possible to create minimal APIs:

var builder = WebApplication.CreateBuilder(args);
var app = builder.Build();

app.MapGet("/products/{id}", (int id) => { return Results.Ok(); })
app.MapGet("/users/{id}", (int id) => { return Results.Ok(); })

app.Run();

What would be an approach to group endpoints in multiple files instead of having all in Program file?

ProductEndpoints.cs:

app.MapGet("/products/{id}", (int id) => { return Results.Ok(); })

UserEndpoints.cs

app.MapGet("/users/{id}", (int id) => { return Results.Ok(); })
minimal-apis .net-6.0 asp.net-core c#
2 Answers

Only one file with top-level statement is allowed per project. But nobody forbids moving endpoints to some static method of another class:

public static class ProductEndpointsExt
{
    public static void MapProductEndpoints(this WebApplication app)
    {
        app.MapGet("/products/{id}", (int id) => { return Results.Ok(); });
    }
}

And in the Program file:

app.MapProductEndpoints();
user_25012790

We can use partial Program.cs files too

Example: "Program.Users.cs"

partial class Program
{
    /// <summary>
    /// Map all users routes
    /// </summary>
    /// <param name="app"></param>
    private static void AddUsers(WebApplication app)
    {
        app.MapGet("/users", () => "All users");
        app.MapGet("/user/{id?}", (int? id) => $"A users {id}");
        ///post, patch, delete...
    }
}

And in "Program.cs"

...
var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}
//add...
AddUsers(app);
...
user_9714810
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