All Questions

First-time poster so please be gentle :) I have a rather large table in my database (MySQL in case it matters) that holds lat/lng values of certain points of interest around the world (table name: ...

I have been designing a C++ class that maps an integer to an integer using a vector. Because there is a lot of repetitive data (for example 11115555666222), I am using a compression scheme where I am ...

I've question about the philosophy of createMemento() in Originator class in Memento Pattern. My teacher said: now that Originator class no longer stores Memento objects internally, we should give it ...

I have an event driven architecutre, with many microserver that publish a lot of message in my event bus. In some case i can't track why some process is blocked, maybe because my Service-A haven't ...

There are times when I have to fix/update records on a Production and/or Staging environment for a Web App. These are remote DBs. Rather than push application code to fix the data, I've been "...

We have a bunch of microservices written in different programming languages. These all communicate with each other over RabbitMQ(AMQP) middleware. There are consumers and publishers in each ...

Context I'm currently developing a notification system with DDD which needs to be able to send the same notification to multiple users. For example, a group of party goers might all be notified about ...

I'm starting a new project that consists of backend (REST Framework - Django) and frontend (Vue app). First I'm trying to figure out the "best" way to handle API requests. For example - not ...

Our drawing tool is draw.io. Occassionally I've got to draw flow charts with it. In those flow charts I've got to express parallel processes (very similar to this UML example). Wikipedia says about ...

I am building a mobile client app that gathers info about movies/TV shows from a website and displays it in a pretty format. When the user clicks on a show, they are taken to a page with the thumbnail ...

I'm having a huge doubt on how to connect the front-end of my application to its back-end. So my application has a single entry point where all requests go. The request is dispatched to a controller, ...

I have been reading about the concept but still it doesn't make sense to me. I want to clarify my question by giving an example. First of all, if we have task1 and task2 which have to run in sequence, ...

We are using Jira to track all our tickets and confluence for documentation. We intend to document the test cases covered on Confluence. Here are a couple requirements: Consider a development ticket ...

Say I want to test the behavior of the GUI while I follow a PassiveView approach. I also use the command pattern to handle the actions of the user. So given a PersonView and a PersonService with a ...

I currently stumbled over the the concept of "ports" in UML component diagrams and I'm not entirely sure how they are supposed to be used. Sometimes, ports seem to be used generally as start ...

I need to be able to find a best fit Rule depending on Keys and Values. So: We have a set of keys and values We need to save a set of Rules based on criteria These Rules may have known keys to search/...

In a case where having microservices deployed as containers without any orchestration tool, they need to define some HTTP response headers. I understand a way to achieve it by having each microservice ...

I'm wondering what are the nowadays risks of storing a JWT that does not expire in an HttpOnly, SameSite=Strict, and Secure cookie. I understand localStorage is vulnerable to XSS, and that normal ...

I have a very simple standalone java application that allows users to tick which messages they want to transfer and then click go, essentially. We now need to provide different users with a different ...

I know an empty method without any good reason is a code smell, but it can be required for constructors. What would be a good way to write an empty constructor among the following? class A { ...

I have thousands of .csv files with the same structure and, in most of the cases, some column values are the same ones recurring. Each file represents a report on some structures, with numeric ...

I am trying to understand how branch prediction works, specifically with regards to correlative branch prediction. I understand that in an (m, n) branch predictor, there are m branch predictors, with ...

In Hexagonal Architecture, our Domain Layer core is completely isolated and surrounded by our Application Layer: Why then, is our Domain Layer allowed to talk to our Infrastructure (DAL) Layer ...

I am the developer of a video streaming website and we need to secure our videos using tokens. The issue is that videos are hosted on 100 different servers and each uses a lot of bandwidth every month....

I'm working on a c++ data analysis project. My workflow goes like this Analyze the data and build models Optimize the code for latency, to deploy for production goto 1 Step 1 has lots of machine ...

I've got an application that uses MVC to run individual, isolated scripts to support our office. There is a root application will open new windows (limit 1 per tool) for each tool opened and each ...

I am designing the government portal that is gonna provide scholarship to various students under numerous schemes from GOI. In that way around 40 million users would be there to use the portal. how ...

I would like to have a designed software architecture evaluated by you. Maybe someone of you has a better idea or at least suggestions for optimization. Scenario: It is a web application with a REST ...

For the sake of discussion, you can assume I'm using Entity Framework and a mediator pattern implementation in .NET. I'm going back and forth trying to decide how to structure some of my data access ...

We have jobs running on-premises, many of which directly query our (on-prem) database. At the start of these jobs a new record is created in the database, and the record id is returned so that it may ...

I’m trying to think what’s the best approach when I need data present in different services in a microservices-based architecture. In an e-commerce context, when a user creates an order the ...

I'm doing some work with my team to refactor/rearchitect some parts of our existing codebase which consists of two separate Django apps hosted in one common project repository. We're starting work on ...

Context Hi, in my job we are trying to modify an API endpoint (/resources) to make special queries to it. A resource has a location (long/lat) and we want to make queries based on that location. We ...

I have an event bus that collects AI predictions from different sources (~100-200 sources). It means we have around 100-200 different producers. An other service is responsible for retrieving events ...

Say there are N nodes/pods (which can change dynamically), and there are a list of X data sources. We need to distribute the responsibility of these X data sources evenly across these N nodes, so that ...

Given a collection of objects and an action id (there is a corresponding "action controller" class, which can be found with the id), what is the best way to organize mass action on the ...

I've recently come across CRC cards and sequence diagrams at my university. Martin fowler has said that sequence diagrams are interchangeable with CRC cards when you're in the design phase of your ...

Alright so here's the situation... All of my coworkers are used to RDP'ing into a Windows server and doing all of their work there. Whether it be coding, SQL work, etc. Multiple developers connecting ...

I'm dealing with a system where: A number of around 50 microservices are available Depending on their needs, clients design their deployment choosing which of those microservices they need Most of ...

Background I have been using Python for a few years now, but I only recently started to consider the use of decorators to reduce redundancy. Specifically, I started to replace default arguments across ...

I have a disagreement with one of my colleagues on whether or not functions should have inverse functions available. I would like to know when/if inverse functions should be used. For example, say we ...

Git flow recommends to have separate branches .i.e. main/master --> production deployable code Development branch gets created from main/master --> active development branch (integration branch) ...

I am creating a 2D layout provider. Trying to create a simplified but similar layout dynamic to WPF. I understand that the layout model in WPF works in terms of a measure and arrange pass. In the ...

Some background : I have common Web API library which adds Serilogger and Splunk integration/implementation for ILogger along with handling of common services/Middlewares such as Custom Authentication/...

I'm reading about software architectures like Hexagonal architecture, Onion architecture etc. They put a big emphasis on decoupling. The business logic sits at the centre and the UI sits on the ...

I'm kinda new in versioning. In my scenario, for example, our main project is currently developing in 2.1.0 (develop branch), while the library version remain same as 1.5.0 since nothing change (for ...

I've recently been working on a customerproject that makes extensive use of a signals/slots like mechanism. Their approach is to directly connect signals from a larger framework to private methods of ...

Let's consider such an example: I'm an author of application like Google Chrome. I would like to my application sends anonymous telemetry logs to my server. How do I prevent somebody to use my server ...

The divide and conquer strategy for closest point problem sorts the points according to x coordinates so that the median could be found. But what does sorting the strip (strip array contains all the ...

Recently In an interview I was asked this question - Question- If are storing passwords in encrypted format in DB and in future when user login into our website how will we perform authentication? Me:...