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Add KurrentDB integration and mark EventStore as obsolete #895
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9ffb47e
Initial plan
Copilot 317000b
Add KurrentDB integration and mark EventStore as obsolete
Copilot 4ce644a
Add tests for KurrentDB integration
Copilot 2d64e91
Add KurrentDB examples and update test workflow
Copilot a69bcbd
Revert API file changes and remove manually created KurrentDB API files
Copilot b3706a4
Update README to use correct KurrentDB type names and GitHub links
Copilot dd8c8b9
Remove EventStore test projects from repository and CI workflow
Copilot d969f4f
Update solution file to include KurrentDB projects and remove EventSt…
Copilot 728ed60
Merge branch 'main' into copilot/update-eventstore-to-kurrentdb
aaronpowell ab8cb36
Removing test from the test list
aaronpowell cf7b6b0
Registering the right client
aaronpowell 93bf2ad
Merge branch 'copilot/update-eventstore-to-kurrentdb' of https://gith…
aaronpowell afdf009
Fixing a bunch of places that were still using EventStoreClient
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105 changes: 105 additions & 0 deletions
105
examples/kurrentdb/CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService/Account.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,105 @@ | ||
| using System.Text.Json.Serialization; | ||
|
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| namespace CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService; | ||
|
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| public class Account | ||
| { | ||
| public Guid Id { get; private set; } | ||
| public string? Name { get; private set; } | ||
| public decimal Balance { get; private set; } | ||
|
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| [JsonIgnore] | ||
| public int Version { get; private set; } = -1; | ||
|
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| [NonSerialized] | ||
| private readonly Queue<object> uncommittedEvents = new(); | ||
|
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| public static Account Create(Guid id, string name) | ||
| => new(id, name); | ||
|
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| public void Deposit(decimal amount) | ||
| { | ||
| ArgumentOutOfRangeException.ThrowIfLessThanOrEqual(amount, 0, nameof(amount)); | ||
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| var @event = new AccountFundsDeposited(Id, amount); | ||
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| uncommittedEvents.Enqueue(@event); | ||
| Apply(@event); | ||
| } | ||
|
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| public void Withdraw(decimal amount) | ||
| { | ||
| ArgumentOutOfRangeException.ThrowIfLessThanOrEqual(amount, 0, nameof(amount)); | ||
| ArgumentOutOfRangeException.ThrowIfGreaterThan(amount, Balance, nameof(amount)); | ||
|
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| var @event = new AccountFundsWithdrew(Id, amount); | ||
|
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| uncommittedEvents.Enqueue(@event); | ||
| Apply(@event); | ||
| } | ||
|
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| public void When(object @event) | ||
| { | ||
| switch (@event) | ||
| { | ||
| case AccountCreated accountCreated: | ||
| Apply(accountCreated); | ||
| break; | ||
| case AccountFundsDeposited accountFundsDeposited: | ||
| Apply(accountFundsDeposited); | ||
| break; | ||
| case AccountFundsWithdrew accountFundsWithdrew: | ||
| Apply(accountFundsWithdrew); | ||
| break; | ||
| } | ||
| } | ||
|
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| public object[] DequeueUncommittedEvents() | ||
| { | ||
| var dequeuedEvents = uncommittedEvents.ToArray(); | ||
|
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| uncommittedEvents.Clear(); | ||
|
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| return dequeuedEvents; | ||
| } | ||
|
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| private Account() | ||
| { | ||
| } | ||
|
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| private Account(Guid id, string name) | ||
| { | ||
| if (id == Guid.Empty) | ||
| { | ||
| throw new ArgumentException("Id cannot be empty.", nameof(id)); | ||
| } | ||
| ArgumentException.ThrowIfNullOrWhiteSpace(name, nameof(name)); | ||
|
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| var @event = new AccountCreated(id, name); | ||
|
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| uncommittedEvents.Enqueue(@event); | ||
| Apply(@event); | ||
| } | ||
|
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| private void Apply(AccountCreated @event) | ||
| { | ||
| Version++; | ||
|
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| Id = @event.Id; | ||
| Name = @event.Name; | ||
| } | ||
|
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| private void Apply(AccountFundsDeposited @event) | ||
| { | ||
| Version++; | ||
|
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| Balance += @event.Amount; | ||
| } | ||
|
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| private void Apply(AccountFundsWithdrew @event) | ||
| { | ||
| Version++; | ||
|
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| Balance -= @event.Amount; | ||
| } | ||
| } |
7 changes: 7 additions & 0 deletions
7
examples/kurrentdb/CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService/AccountEvents.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| namespace CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService; | ||
|
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| public record AccountCreated(Guid Id, string Name); | ||
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| public record AccountFundsDeposited(Guid Id, decimal Amount); | ||
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| public record AccountFundsWithdrew(Guid Id, decimal Amount); |
18 changes: 18 additions & 0 deletions
18
....Hosting.KurrentDB.ApiService/CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService.csproj
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,18 @@ | ||
| <Project Sdk="Microsoft.NET.Sdk.Web"> | ||
|
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| <PropertyGroup> | ||
| <Nullable>enable</Nullable> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| </PropertyGroup> | ||
|
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| <ItemGroup> | ||
| <PackageReference Include="Microsoft.AspNetCore.OpenApi" /> | ||
| <PackageReference Include="Swashbuckle.AspNetCore" /> | ||
| </ItemGroup> | ||
|
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\..\src\CommunityToolkit.Aspire.KurrentDB\CommunityToolkit.Aspire.KurrentDB.csproj" /> | ||
| <ProjectReference Include="..\CommunityToolkit.Aspire.Hosting.KurrentDB.ServiceDefaults\CommunityToolkit.Aspire.Hosting.KurrentDB.ServiceDefaults.csproj" /> | ||
| </ItemGroup> | ||
|
|
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| </Project> |
76 changes: 76 additions & 0 deletions
76
...les/kurrentdb/CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService/KurrentDBExtensions.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| using System.Text.Json; | ||
| using System.Text; | ||
| using KurrentDB.Client; | ||
|
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| namespace CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService; | ||
|
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| public static class KurrentDBExtensions | ||
| { | ||
| public static async Task<Account?> GetAccount(this KurrentDBClient eventStore, Guid id, CancellationToken cancellationToken) | ||
| { | ||
| var readResult = eventStore.ReadStreamAsync( | ||
| Direction.Forwards, | ||
| $"account-{id:N}", | ||
| StreamPosition.Start, | ||
| cancellationToken: cancellationToken | ||
| ); | ||
|
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| var readState = await readResult.ReadState; | ||
| if (readState == ReadState.StreamNotFound) | ||
| { | ||
| return null; | ||
| } | ||
|
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| var account = (Account)Activator.CreateInstance(typeof(Account), true)!; | ||
|
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| await foreach (var resolvedEvent in readResult) | ||
| { | ||
| var @event = resolvedEvent.Deserialize(); | ||
|
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| account.When(@event!); | ||
| } | ||
|
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| return account; | ||
| } | ||
|
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| public static async Task AppendAccountEvents(this KurrentDBClient eventStore, Account account, CancellationToken cancellationToken) | ||
| { | ||
| var events = account.DequeueUncommittedEvents(); | ||
|
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| var eventsToAppend = events | ||
| .Select(@event => @event.Serialize()).ToArray(); | ||
|
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| var expectedVersion = account.Version - events.Length; | ||
| await eventStore.AppendToStreamAsync( | ||
| $"account-{account.Id:N}", | ||
| expectedVersion == 0 ? StreamState.NoStream : StreamState.StreamRevision((ulong)expectedVersion), | ||
| eventsToAppend, | ||
| cancellationToken: cancellationToken | ||
| ); | ||
| } | ||
|
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| private static object? Deserialize(this ResolvedEvent resolvedEvent) | ||
| { | ||
| var eventClrTypeName = JsonDocument.Parse(resolvedEvent.Event.Metadata) | ||
| .RootElement | ||
| .GetProperty("EventClrTypeName") | ||
| .GetString(); | ||
|
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| return JsonSerializer.Deserialize( | ||
| Encoding.UTF8.GetString(resolvedEvent.Event.Data.Span), | ||
| Type.GetType(eventClrTypeName!)!); | ||
| } | ||
|
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| private static EventData Serialize(this object @event) | ||
| { | ||
| return new EventData( | ||
| Uuid.NewUuid(), | ||
| @event.GetType().Name, | ||
| data: Encoding.UTF8.GetBytes(JsonSerializer.Serialize(@event)), | ||
| metadata: Encoding.UTF8.GetBytes(JsonSerializer.Serialize(new Dictionary<string, string> | ||
| { | ||
| { "EventClrTypeName", @event.GetType().AssemblyQualifiedName! } | ||
| })) | ||
| ); | ||
| } | ||
| } | ||
81 changes: 81 additions & 0 deletions
81
examples/kurrentdb/CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService/Program.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| using CommunityToolkit.Aspire.Hosting.KurrentDB.ApiService; | ||
| using KurrentDB.Client; | ||
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|
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|
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| var builder = WebApplication.CreateBuilder(args); | ||
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| builder.AddServiceDefaults(); | ||
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| builder.AddKurrentDBClient("kurrentdb"); | ||
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| // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle | ||
| builder.Services.AddEndpointsApiExplorer(); | ||
| builder.Services.AddSwaggerGen(); | ||
|
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| var app = builder.Build(); | ||
|
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| app.UseHttpsRedirection(); | ||
|
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| app.MapDefaultEndpoints(); | ||
|
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| if (app.Environment.IsDevelopment()) | ||
| { | ||
| app.UseSwagger(); | ||
| app.UseSwaggerUI(); | ||
| } | ||
|
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| app.MapPost("/account/create", async (KurrentDBClient eventStore, CancellationToken cancellationToken) => | ||
| { | ||
| var account = Account.Create(Guid.NewGuid(), "John Doe"); | ||
|
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| account.Deposit(100); | ||
|
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| await eventStore.AppendAccountEvents(account, cancellationToken); | ||
|
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| return Results.Created($"/account/{account.Id}", account); | ||
| }); | ||
|
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| app.MapGet("/account/{id:guid}", async (Guid id, KurrentDBClient eventStore, CancellationToken cancellationToken) => | ||
| { | ||
| var account = await eventStore.GetAccount(id, cancellationToken); | ||
| if (account is null) | ||
| { | ||
| return Results.NotFound(); | ||
| } | ||
|
|
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| return TypedResults.Ok(account); | ||
| }); | ||
|
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| app.MapPost("/account/{id:guid}/deposit", async (Guid id, DepositRequest request, KurrentDBClient eventStore, CancellationToken cancellationToken) => | ||
| { | ||
| var account = await eventStore.GetAccount(id, cancellationToken); | ||
| if (account is null) | ||
| { | ||
| return Results.NotFound(); | ||
| } | ||
|
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| account.Deposit(request.Amount); | ||
|
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| await eventStore.AppendAccountEvents(account, cancellationToken); | ||
|
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| return Results.Ok(); | ||
| }); | ||
|
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| app.MapPost("/account/{id:guid}/withdraw", async (Guid id, WithdrawRequest request, KurrentDBClient eventStore, CancellationToken cancellationToken) => | ||
| { | ||
| var account = await eventStore.GetAccount(id, cancellationToken); | ||
| if (account is null) | ||
| { | ||
| return Results.NotFound(); | ||
| } | ||
|
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| account.Withdraw(request.Amount); | ||
|
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| await eventStore.AppendAccountEvents(account, cancellationToken); | ||
|
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| return Results.Ok(); | ||
| }); | ||
|
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| app.Run(); | ||
|
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| public record DepositRequest(decimal Amount); | ||
| public record WithdrawRequest(decimal Amount); | ||
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