Newest Questions
64,339 questions
2
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65
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Does (possibly) failable destructor require to change invariant violation error handling?
First, I'd like to highlight my personal premise on error handling approaches in C++ (as it might be the source of confusion in the first place). C++ Standards, 2004 (Sutter, Aleksandrescu), item 68 ...
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0
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13
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Set-Cookie header is found in Response header but not found in Cookies Storage [migrated]
Context:
Trying to login, the request is working with success login. But for storing refreshToken, the cookie is not being set in Cookies section and not found.
Backend sends set-cookie header with ...
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1
vote
1
answer
163
views
How to manage connection strings for CI/CD and local debugging that works for .NET Framework web apps and desktop apps?
We want CI/CD to inject the production connection string into a .NET Framework app.config during deployment.
In source control, we only want test/staging DB connection strings.
Developers should ...
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votes
1
answer
142
views
Why do database protocols use fixed endianness instead of native server endianness?
Most database wire protocols mandate a specific byte order for multi-byte integers:
PostgreSQL: big-endian (network byte order)
MySQL: little-endian
MongoDB: little-endian (BSON format)
OracleDB: ...
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3
votes
2
answers
313
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Backup for an Android offline password manager
I am building an Android password management app, where passwords are locally kept for security reasons. The network endpoints are only for creating an account, email verifications etc.
I want to ...
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1
vote
3
answers
157
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How can I introduce migration scripts to a team that has stopped using them?
In my working experience, I am into a situation in which the team has stopped using migration scripts for setting up the db. The team is fast paced focusing on business upon a 1-year old startup.
...
1
vote
1
answer
87
views
How Should Services and Presentation Layers Share Data in Web Applications?
Lately, I’ve been studying the fundamentals of Software Architecture for web applications, and I’m a bit unsure about how the data and presentation layers should interact.
From what I understand, the ...
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2
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2
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97
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How to deal with a poorly documented AWS SQS feed for a security product API?
I’m integrating with the Ajax Enterprise API which exposes an AWS SQS feed for device events and notifications. The API documentation is here: Ajax Enterprise API Docs.
Each SQS message supplies an ...
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4
answers
323
views
Terminology for a case where the same algorithm produces different results during tests?
I'm testing writing 10 MB of data to a server.
The expected result echoed back is 10485760 bytes.
160 writes of 65336 bytes.
Approximately 1 of 5 tests I get back 10420224 bytes in the test. 65536 ...
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0
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63
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Strategies for flexible, maintainable and easy to read data access [closed]
For me the hardest part has always been designing data access layer.
After trying various strategies I started leaning towards many small focused DAOs like in example below.
public class ...
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1
vote
2
answers
114
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Designing persistence guarantees in an ingestion pipeline with a non-customizable intermediary
I’m migrating a large volume of historical RRD data into a VictoriaMetrics cluster.
By design, vminsert buffers and asynchronously forwards data to vmstorage. This makes it unclear when data is ...
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3
votes
6
answers
619
views
Can a language be sound if it doesn't promise safety?
It is said that C's type system is unsound, which means that it has "false negatives", it tells the programmer everything is fine, but then the code fails at runtime. for example, "the ...
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votes
3
answers
200
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Optimizing a "Transfer-Encoding: chunked" parser [closed]
I have written a parser for Transfer-Encoding: chunked requests over HTTP/1.1. Now I'm working on optimizing the code. This is the specification 7.1. Chunked Transfer Coding.
The first optimization ...
2
votes
2
answers
149
views
How should multiple ViewModels communicate in a larger WPF MVVM application?
I’m working on a WPF MVVM application that has grown beyond just one or two User Controls. I now have multiple ViewModels that need to react to each other’s actions (e.g., selecting a customer in one ...
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2
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132
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Preventing duplicate customers from company entry vs mobile sign-in [closed]
We have a system where customers can be created in two ways:
By a company — the customer belongs to that company and the company can edit their information.
By a mobile user — the customer has a ...
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2
votes
1
answer
124
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Serving several external APIs in Django + Angular application
I'm working on a web-based app that uses Django and Angular. This app uses several external APIs to fetch environmental data from different monitoring networks. We then use these data to perform ...
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2
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191
views
How to design a Transfer-Encoding: chunked parser of Uint8Array's in JavaScript? [closed]
I'm working on implementing parsing a series of Uint8Arrays that contain Transfer-Encoding: chunked data sent from the client using WHATWG Fetch over a single connection.
For example, writing 1 MB ...
2
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2
answers
213
views
Is it a violation of the three-tier architecture if I inject one service into another inside the logic layer?
I am a beginner programmer with little experience in building complex applications. Currently I'm making a messenger using Python's FastAPI for the back-end. The main thing that I am trying to achieve ...
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6
votes
6
answers
779
views
Good way to represent connectivity between nodes of tree (outside of tree hierarchy)?
I have a set of data carrier objects represented using vertices in a strict tree hierarchy. I also have the following requirements:
some vertices should be "linked" to other vertices ...
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2
votes
2
answers
111
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When using Clean Code with Ports and Mappers: which layer declares the Entity (Aggregate) factory interface and which one implements it?
So I was reading Eric Evans DDD book and one point that was not clear to me is which Layer (in case of using Clean Code) should be reponsible to:
define the interface contract for an Entity (...
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1
answer
102
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How to organize struct-based "methods" in C similar to object-oriented style? [closed]
So I was coding in C for a while now, getting used to language syntax and different styles.
Implemented a couple of simple data structures, algorithms and tried my skills in making Minesweeper clone.
...
2
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7
answers
273
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I'm looking for a design principle referring to using a system for it's intended purpose
Recently a junior team member was asked to use a survey tool to act as a system by which fuel delivery drivers could submit their Bill of Lading to our dispatch team for record collection after ...
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3
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417
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Practicing DDD from the biggest modules to the smallest widgets
I have a frontend project using VueJS and TS and I structured it using DDD. So far, I have some modules (bounded contexts, domains - use the term you prefer) which are used in two ways: some modules ...
1
vote
3
answers
99
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How should we design an IoT platform that handles dynamic device schemas and time-series ingestion at scale (100K writes/min)? [closed]
We’re a small dev team (3 full-stack web devs + 1 mobile dev) working on a B2B IoT monitoring platform for an industrial energy component manufacturer. Think: batteries, inverters, chargers. We have 3 ...
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1
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70
views
Best practices for serving encrypted files in Laravel?
I'm building a Laravel-based web application that functions as a personal online photo archive. Each user uploads and manages their own private collection of images. These images are encrypted at rest ...
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2
votes
1
answer
268
views
Visibility between UML packages
I have been reading the book "OCUP 2 Certification Guide : Preparing for the OMG Certified UML 2. 5 Professional 2 Foundation Exam". Where-in I am unconvinced with the answer option provided ...
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4
votes
3
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229
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The applicability of functional core - imperative shell to a cli program which contains a wrapper around a binary
Not long ago while I was exploring for solutions to test without mocks I've found out about the functional core, imperative shell architecture. It sounds great, I also think that it would play nicely ...
3
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2
answers
275
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"dimension" vs "extent", "axis" vs "dimension" - when should I use which term?
I'm defining a small API involving both uni-dimensional and multi-dimensional data. In addition to representing the data itself, I also have function/methods/operators for creating a new multi-...
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6
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255
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Design pattern for exposing different parts of interface to different entities
In a certain program I would like to have three objects, say, a, b, and c, with c being a shared private member (sub-object) of a and b. The data between the three objects shall only go this way:
a &...
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3
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164
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Ensuring proper initialization order in event-driven C++ applications
I'm working on a C++ system where I have a concept of a "Board" object. Each board can have services attached (e.g. UpdateService, LoggingService, etc.).
I'm trying to design how these ...
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