// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using Microsoft.EntityFrameworkCore;
 
var builder = WebApplication.CreateBuilder(args);
 
builder.AddServiceDefaults();
 
builder.AddAzureNpgsqlDbContext<MyDb1Context>("db1");
 
var app = builder.Build();
 
app.MapDefaultEndpoints();
var firstTime = true;
app.MapGet("/", async (MyDb1Context db1Context) =>
{
    if (firstTime)
    {
        firstTime = false;
        db1Context.Database.EnsureCreated();
    }
 
    // We only work with db1Context for the rest of this
    // since we've proven connectivity to the others for now.
    var entry = new Entry();
    await db1Context.Entries.AddAsync(entry);
    await db1Context.SaveChangesAsync();
 
    var entries = await db1Context.Entries.ToListAsync();
 
    return new
    {
        totalEntries = entries.Count,
        entries = entries
    };
});
 
app.Run();
 
public class MyDb1Context(DbContextOptions<MyDb1Context> options) : DbContext(options)
{
    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        base.OnModelCreating(modelBuilder);
 
        modelBuilder.Entity<Entry>().HasKey(e => e.Id);
    }
 
    public DbSet<Entry> Entries { get; set; }
}
 
public class Entry
{
    public Guid Id { get; set; } = Guid.NewGuid();
}