public async Task <Unit> Handle(UpdateUserConnectionMappingsCommand request, CancellationToken cancellationToken)
{
var mappings = await _dynamoDbClient.GetUserConnectionMappings();
var messages = request.SqsEvent.Records.Select(record => JsonConvert.DeserializeObject <UpdateUserConnectionMappingQueueMessage>(record.Body));
foreach (var message in messages)
{
if (message.IsDeletion)
{
mappings.RemoveMapping(message.UserConnectionMapping);
}
else
{
mappings.AddMapping(message.UserConnectionMapping);
}
}
await _dynamoDbClient.SaveUserConnectionMappings(mappings);
return(Unit.Value);
}
public async Task <Unit> Handle(SendWebSocketMessagesCommand command, CancellationToken cancellationToken)
{
var mappings = (await _dynamoDbClient.GetUserConnectionMappings()).GetUserConnectionMappings();
foreach (var streamRecord in command.DynamoEvent.Records)
{
await command.EventDataMapper(streamRecord)
.MatchAsync(async message =>
{
foreach (var mapping in mappings.ToList())
{
if (!await _apiGatewayClient.PostMessage(mapping.ConnectionId, message))
{
await _dynamoDbClient.DeleteUser(mapping.UserId);
}
}
return(LanguageExt.Unit.Default);
},
() => Task.FromResult(LanguageExt.Unit.Default));
}
return(Unit.Value);
}