If you want to apply a minor tweak to the document, it must not require much time to Distribute photo notification. This sort of simple action does not have to require extra training or running through handbooks to understand it. With the right document modifying resource, you will not take more time than is necessary for such a swift change. Use DocHub to streamline your modifying process whether you are a skilled user or if it is your first time making use of a web-based editor service. This instrument will require minutes to learn how to Distribute photo notification. The only thing required to get more productive with editing is a DocHub account.
A plain document editor like DocHub will help you optimize the time you need to spend on document modifying regardless of your previous knowledge of such resources. Make an account now and improve your efficiency immediately with DocHub!
Hi. And welcome to the system design interview channel. Today we design a notification service. Lets start with the problem statement. In the world of web services there are many scenarios when messages need to be sent in a reaction to some event. For example, when credit card transaction amount exceeded a limit and card holder needs to be notified. Or service monitoring system encountered a large number of faults produced by API and on-call engineer needs to be notified. In more general terms, lets say there is a component called Publisher which produces messages that need to be delivered to a group of other components, called Subscribers. We could have setup a synchronous communication between Publisher and Subscribers, when Publisher calls each Subscriber in some order and waits for the response. But this introduces many different challenges: hard to scale such system when number of subscribers and messages grow and hard to extend such solution to support different types of subsc