Program.cs

using Microsoft.EntityFrameworkCore;
using WebApi.Models;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();

builder.Services.AddApiVersioning(options =>
{
    {
        options.DefaultApiVersion = new Microsoft.AspNetCore.Mvc.ApiVersion(1, 0);
        options.AssumeDefaultVersionWhenUnspecified = true;
        options.ReportApiVersions = true;
        // options.ApiVersionReader = new Microsoft.AspNetCore.Mvc.Versioning.HeaderApiVersionReader("X-API-Version");
        options.ApiVersionReader = new Microsoft.AspNetCore.Mvc.Versioning.QueryStringApiVersionReader("api-version");
    }
});

builder.Services.AddVersionedApiExplorer(options =>
{
    options.GroupNameFormat = "'v'VVV";
    options.SubstituteApiVersionInUrl = true;
});
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

builder.Services.AddDbContext<ShopContext>(options =>
    options.UseInMemoryDatabase("ShopDb"));

var app = builder.Build();

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

app.UseHttpsRedirection();

app.UseAuthorization();

app.MapControllers();

app.Run();