Newest Questions
64,391 questions
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112
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Should I instantiate controllers in route modules or use static methods?
I’m building a modular REST API using Node.js + Express + TypeScript.
My controllers are defined as classes. In my route files, I currently create a new controller instance, like this:
import { Router ...
- 313
1
vote
3
answers
381
views
Why is short polling considered an antipattern for event-sourced systems?
I have an application with very strict requirements around auditing and the "replayability" of user actions. For this reason, I've chosen an event-sourced architecture because of its append-...
- 119
1
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226
views
How should domain models be designed — rich domain models with encapsulated logic vs. anemic models with separate service/util layers?
I'm learning Domain-Driven Design (DDD) and studying different architecture patterns, and I’ve come across two seemingly conflicting design philosophies around domain modeling.
1. Rich Domain Model ...
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2
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190
views
How to reduce the number of class instances passed to the __init__() method of a Python class?
I have a Python class called FunctionsManager; its __init__() method is the following:
class FunctionsManager:
def __init__(self, instance_class1, instance_class2, ..., instance_classN):
...
- 189
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1
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87
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Automated Testing classes with an injected DbContext [duplicate]
I've been working on an implementation of a service, and have found that there are a number of operations where I need to read from a database to provide a caller with certain data or objects.
In-line ...
- 11
7
votes
3
answers
551
views
What SOLID principles does the Java List interface challenge?
The Java List<E> interface includes methods, such as add(E) and remove(Object), that work as the names suggest on instances of mutable concrete implementations, such as ArrayList<E> and ...
- 1,007
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1
answer
82
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Patterns for background apps using system tray and dialogs
I've had reasons to design an application that should 1) run in the background to show status and notifications, with 2) dialogs showing details and configuring the app through more powerful widgets. ...
- 317
7
votes
3
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389
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How to test the parts of an application that cannot run in a test harness
I'm working on a program that runs as a sort of plugin to the Windows UAC prompt (and other similarly difficult environments). The testing situation is a bit abysmal. End-to-end tests are not possible,...
- 81
3
votes
4
answers
418
views
Does possession of a valid JWT automatically imply the user is authenticated?
I am tasked with implementing authentication and authorization in a distributed environment, so I plan to use JWT.
I get how authorization works with JWT - if the token is not expired, and the ...
- 227
1
vote
2
answers
251
views
How does a PostgreSQL cursor actually work? What are their tradeoffs?
I'm in charge of developing an application that sometimes needs to process massive amounts of data from a Greenplum (a PostgreSQL-derived) database. The process involves a Java 8 program running on a ...
- 31
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61
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Do data stores in a Level 1 DFD have to match the tables in the ERD exactly?
We're developing an anomaly detection web app as a Capstone Project, and we're currently revising our manuscript.
In our last capstone defense, one of our panelists mentioned that the data stores in ...
2
votes
1
answer
261
views
Is it okay to mix OOP and modular approaches when building a backend with TypeScript/JavaScript?
I’m designing a backend in TypeScript (could also apply to JavaScript), and I’m wondering about the architectural approach.
Is it better to stick to a single paradigm (e.g., fully object-oriented or ...
- 313
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3
answers
191
views
API Design: Should I explicitly check for and throw on nullptr parameters if I have full control?
Say I have the following header
#ifndef WINDOW_HPP
#define WINDOW_HPP
// includes...
namespace window
{
struct Window
{
GLFWwindow *handle = nullptr;
};
struct ...
user393053
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2
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204
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Is exposing full backend entities to a Vue frontend a bad practice? A case for DTOs?
I am doing the frontend for a Java Spring backend. The project uses JavaFX for the front but I a migrating it for web usage (with VueJS). When I make an API call to retrieve an object, I am receiving ...
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2
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93
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How can I efficiently handle click events and sequentially related operations (like user–URL deactivation) in a scalable URL shortener?
I am learning backend development by building a simple URL shortener project. My goal is to learn backend concepts and try to do things in simple but better ways, keeping scalability and reliability ...
