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♻️ Use jetstream to handle events broadcast

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This commit is contained in:
LittleSheep
2025-09-09 22:52:26 +08:00
parent 06d639a114
commit 812dd03e85
10 changed files with 134 additions and 44 deletions
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3
DysonNetwork.Sphere/DysonNetwork.Sphere.csproj
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@@ -30,7 +30,8 @@
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="NATS.Client.Core" Version="2.6.6" />
<PackageReference Include="NATS.Client.Core" Version="2.6.8" />
<PackageReference Include="NATS.Client.JetStream" Version="2.6.8" />
<PackageReference Include="Nerdbank.GitVersioning" Version="3.7.115">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>

100
DysonNetwork.Sphere/Startup/BroadcastEventHandler.cs
View File

@@ -4,6 +4,8 @@ using DysonNetwork.Shared.Stream;
using DysonNetwork.Sphere.Post;
using Microsoft.EntityFrameworkCore;
using NATS.Client.Core;
using NATS.Client.JetStream;
using NATS.Client.JetStream.Models;
namespace DysonNetwork.Sphere.Startup;
@@ -29,17 +31,38 @@ public class BroadcastEventHandler(
{
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
await foreach (var msg in nats.SubscribeAsync<byte[]>(PaymentOrderEventBase.Type, cancellationToken: stoppingToken))
try
{
var paymentTask = ProcessPaymentOrdersAsync(stoppingToken);
var accountTask = ProcessAccountDeletionsAsync(stoppingToken);
await Task.WhenAll(paymentTask, accountTask);
}
catch (Exception ex)
{
logger.LogError(ex, "BroadcastEventHandler stopped due to an unhandled exception.");
}
}
private async Task ProcessPaymentOrdersAsync(CancellationToken stoppingToken)
{
var js = new NatsJSContext(nats);
var stream = await js.GetStreamAsync(PaymentOrderEventBase.Type, cancellationToken: stoppingToken);
var consumer = await stream.CreateOrUpdateConsumerAsync(new ConsumerConfig("DysonNetwork_Sphere_PaymentOrder"),
cancellationToken: stoppingToken);
await foreach (var msg in consumer.ConsumeAsync<byte[]>(cancellationToken: stoppingToken))
{
PaymentOrderEvent? evt = null;
try
{
evt = JsonSerializer.Deserialize<PaymentOrderEvent>(msg.Data);
// Every order goes into the MQ is already paid, so we skipped the status validation
if (evt?.ProductIdentifier is null)
{
await msg.AckAsync(cancellationToken: stoppingToken);
continue;
}
switch (evt.ProductIdentifier)
{
@@ -47,9 +70,9 @@ public class BroadcastEventHandler(
{
var awardEvt = JsonSerializer.Deserialize<PaymentOrderAwardEvent>(msg.Data);
if (awardEvt?.Meta == null) throw new ArgumentNullException(nameof(awardEvt));
var meta = awardEvt.Meta;
logger.LogInformation("Handling post award order: {OrderId}", evt.OrderId);
await using var scope = serviceProvider.CreateAsyncScope();
@@ -61,29 +84,45 @@ public class BroadcastEventHandler(
logger.LogInformation("Post award for order {OrderId} handled successfully.", evt.OrderId);
await msg.AckAsync(cancellationToken: stoppingToken);
break;
}
default:
await nats.PublishAsync(PaymentOrderEventBase.Type, msg.Data, cancellationToken: stoppingToken);
// Not for us, acknowledge and ignore.
await msg.AckAsync(cancellationToken: stoppingToken);
break;
}
}
catch (Exception ex)
{
logger.LogError(ex, "Error processing payment order event for order {OrderId}", evt?.OrderId);
await nats.PublishAsync(PaymentOrderEventBase.Type, msg.Data, cancellationToken: stoppingToken);
logger.LogError(ex, "Error processing payment order event for order {OrderId}, will retry.",
evt?.OrderId);
await msg.NakAsync(delay: TimeSpan.FromSeconds(30), cancellationToken: stoppingToken);
}
}
}
await foreach (var msg in nats.SubscribeAsync<byte[]>(AccountDeletedEvent.Type,
cancellationToken: stoppingToken))
private async Task ProcessAccountDeletionsAsync(CancellationToken stoppingToken)
{
var js = new NatsJSContext(nats);
var stream = await js.GetStreamAsync(AccountDeletedEvent.Type, cancellationToken: stoppingToken);
var consumer =
await stream.CreateOrUpdateConsumerAsync(new ConsumerConfig("DysonNetwork_Sphere_AccountDeleted"),
cancellationToken: stoppingToken);
await foreach (var msg in consumer.ConsumeAsync<byte[]>(cancellationToken: stoppingToken))
{
AccountDeletedEvent? evt = null;
try
{
var evt = JsonSerializer.Deserialize<AccountDeletedEvent>(msg.Data);
if (evt == null) continue;
evt = JsonSerializer.Deserialize<AccountDeletedEvent>(msg.Data);
if (evt == null)
{
await msg.AckAsync(cancellationToken: stoppingToken);
continue;
}
logger.LogInformation("Account deleted: {AccountId}", evt.AccountId);
logger.LogInformation("Processing account deletion for: {AccountId}", evt.AccountId);
using var scope = serviceProvider.CreateScope();
var db = scope.ServiceProvider.GetRequiredService<AppDatabase>();
@@ -103,27 +142,40 @@ public class BroadcastEventHandler(
.Where(p => p.Members.All(m => m.AccountId == evt.AccountId))
.ToListAsync(cancellationToken: stoppingToken);
foreach (var publisher in publishers)
await db.Posts
.Where(p => p.PublisherId == publisher.Id)
.ExecuteDeleteAsync(cancellationToken: stoppingToken);
if (publishers.Any())
{
foreach (var publisher in publishers)
{
await db.Posts
.Where(p => p.PublisherId == publisher.Id)
.ExecuteDeleteAsync(cancellationToken: stoppingToken);
}
var publisherIds = publishers.Select(p => p.Id).ToList();
await db.Publishers
.Where(p => publisherIds.Contains(p.Id))
.ExecuteDeleteAsync(cancellationToken: stoppingToken);
var publisherIds = publishers.Select(p => p.Id).ToList();
await db.Publishers
.Where(p => publisherIds.Contains(p.Id))
.ExecuteDeleteAsync(cancellationToken: stoppingToken);
}
await transaction.CommitAsync(cancellationToken: stoppingToken);
await msg.AckAsync(cancellationToken: stoppingToken);
logger.LogInformation("Account deletion for {AccountId} processed successfully in Sphere.",
evt.AccountId);
}
catch (Exception)
catch (Exception ex)
{
await transaction.RollbackAsync(cancellationToken: stoppingToken);
logger.LogError(ex,
"Error during transaction for account deletion {AccountId} in Sphere, rolling back.",
evt.AccountId);
await transaction.RollbackAsync(CancellationToken.None);
throw;
}
}
catch (Exception ex)
{
logger.LogError(ex, "Error processing AccountDeleted");
logger.LogError(ex, "Failed to process account deletion for {AccountId} in Sphere, will retry.",
evt?.AccountId);
await msg.NakAsync(delay: TimeSpan.FromSeconds(30), cancellationToken: stoppingToken);
}
}
}