I am trying to design an event based messaging system which works as follows:
Let us say that there are multiple products in a store, and their prices vary every day. Clients can login to the application, and request to know (via SMS) the price of a particular product on a particular date (say 1 month from the date of login). The application will not have access to a database. It will have to retrieve the information from a web page. So let us say that the user wants to know the price of a product on the 1st of Jan, then the application will have to access the website on that particular day itself. Also, another detail is that the price of the product can be changed any time during the day. I am not sure how to design this using zeromq, particularly I am not sure how to receive a client request and then act on it after a month or so. Will I have to start a timer for every request? Please help me with the design. Sincerely, Vishal
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