public async Task <AddPlatformPayload> AddPlatformAsync(
AddPlatformInput input
, [ScopedService] AppDbContext context
, [Service] ITopicEventSender eventSender
, CancellationToken cancellationToken
)
{
var platform = input.toEntity();
context.Platforms.Add(platform);
await context.SaveChangesAsync(cancellationToken);
await eventSender.SendAsync(nameof(Subscription.OnPlatformAdded), platform, cancellationToken);
return(new AddPlatformPayload(platform));
}
[UseDbContext(typeof(AppDbContext))] //For multithreaded Db context.
public async Task <AddPlatformPayload> AddPlatformAsync(AddPlatformInput input,
[ScopedService] AppDbContext context,
[Service] ITopicEventSender eventSender, //Use to send the event. Comes from Hotchocolate.Subscriptions
CancellationToken cancellationToken) //Allows us to cancel async method calls if they're hanging for eg. It comes from System.Threading
{
var platform = new Platform
{
Name = input.Name
};
context.Platforms.Add(platform);
await context.SaveChangesAsync(cancellationToken);
await eventSender.SendAsync(nameof(Subscription.OnPlatformAdded), platform, cancellationToken);
return(new AddPlatformPayload(platform));
}
public async Task <AddPlatformPayload> AddPlatformAsync(
AddPlatformInput input,
[ScopedService] AppDbContext context,
[Service] ITopicEventSender eventSender, // used to subscribe to 'OnPlatformAdded'
CancellationToken cancelletionToken)
{
Platform platform = new()
{
Name = input.Name
};
await context.Platforms.AddAsync(platform, cancelletionToken);
await context.SaveChangesAsync(cancelletionToken);
await eventSender.SendAsync(nameof(Subscription.OnPlatformAdded), platform, cancelletionToken);
return(new AddPlatformPayload(platform));
}