Author: rocker8942

Cloud can be productive but is not cheap

For the new project to analyze Edgar document, which is where companies in the US announces their annual report, quarterly report, etc by law. Many investors consider this data as a valuable investment data resource. Challenge Volume: To analyze the Edgar document, the volume is the first challenge. The number of announcements in Edgar is… Continue reading Cloud can be productive but is not cheap

Azure Event service cheat sheet

Storage Queue: Queue. large and slow messages. e.g. dead-letter event. Service Bus: Transactional message. At-most-once delivery. Event Hub: IoT, log data, stream data Event Grid: Link events from the event source to the event handler (e.g. function). Pub/Sub. 1 to Many delivery.

DateTime – How to properly save and read date time in ASP.Net

There could be many ways of saving DateTime in an App. The simplest way is storing it as it is typed in by users if the website’s users are within a single country. If a website is serviced globally, confusion starts. Normally users might assume the date-time is local time. For example, if a user… Continue reading DateTime – How to properly save and read date time in ASP.Net

Design Pattern – Composite

Let’s refactor further the previous code sample using the composite pattern. See the link(https://www.dofactory.com/net/composite-design-pattern) for the details of what is a composite pattern. Let’s bring back the last code here. var availableCommands = new ICommand[] { new UpdatePrice(_stockPriceManager, stocksToRead, _appSettings.DaysToReadFromWeb), new UpdateStats(_stockPriceManager, stocksToAnalyze), new SimulateCommand(_stockPriceManager, stocksToAnalyze, _marketWatchRepository, investDay, _tradeOption, _logger, _appSettings) }; if (runOption ==… Continue reading Design Pattern – Composite