public async Task <Dictionary <string, string> > GetUserConnectionsAsync(string userId)
{
string cacheKey = CacheKeyFactories.GenerateConnectionCacheKey(userId, EntityKey);
int countConnectionsInDb = await connectionProvider.CountConnectionsAsync(userId);
var dataFromCache = await CacheGetString(cacheKey);
if (countConnectionsInDb == 0 && dataFromCache == null || (dataFromCache == null || dataFromCache.Connections.Keys.Count == 0))
{
return(null);
}
if (dataFromCache.Connections.Keys.Count > 0 && dataFromCache.Connections.Count == countConnectionsInDb)
{
return(dataFromCache.Connections);
}
var connectionsFromDb = await connectionProvider.GetModelsBySearchPredicate(x => x.UserId == userId);
var connectionsIdentefier = new Dictionary <string, string>();
foreach (var connection in connectionsFromDb)
{
connectionsIdentefier.Add(connection.ConnectionId, connection.SessionId);
}
var cacheValue = new ConnectionCacheModel()
{
UserId = userId,
Connections = connectionsIdentefier
};
await CacheUpdateString(cacheKey, cacheValue, TimeSpan.FromMinutes(tokenOptions.Value.AccessTokenLifeTime));
return(cacheValue.Connections);
}
