1,972 questions
-3
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0
answers
31
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Sell Digital Content through Razorpay Payment Gateway [closed]
In all educational app are used Payment Gateway direct their app but Google Play Console Policy does not allow it... they say you can used User chooses billing system for selling digital content.
But ...
0
votes
1
answer
134
views
A C++ unit test which tests a function which takes a lambda as an argument
I have written a C++ Unit Test which has a design problem.
The test is relatively straightforward. I am testing some kind of "iobuffer" object. There is a function recv which is used to copy ...
- 18.7k
0
votes
0
answers
63
views
How to make changes to database schema directly within VSCode
I am building a software with NextJS and Supabase.
What is the easiest, most efficient way of managing my database schema within VSCode.
For example, instead of going to the Supabase backend to write ...
- 15
0
votes
0
answers
225
views
How to connect an external PostgreSQL database into my NextJs app to query data
I am building a software with NextJS Supabase, Prisma --- using typescript.
My goal is simple, connect one or multiple EXTERNAL PostgreSQL databases to my software's UI. Once connected, I can write ...
- 15
0
votes
2
answers
48
views
SAAS subscription and plan paying by cash and Stripe
I'm a newbie. I'm going to build a software project that have feature like subscription and plan, like of saas. User pay recurring (monthly or yearly). The existing solution I found it Stripe, but the ...
- 1
-2
votes
1
answer
159
views
Microservices Architecture Decision: Entity based vs Feature based Services
I'm architecting my first microservices system and need guidance on service boundaries for a multi-feature platform. Building a Spring Boot backend that encompasses three distinct business domains:
...
0
votes
1
answer
78
views
Modeling a game convention set in Rust [closed]
I am writing a bot capable of playing a cooperative board game with other bots or human players.
In this game, there are black cards and white cards. Players can hold up to 5 cards in their hands.
The ...
- 359
1
vote
0
answers
59
views
How to add components or artifacts inside a node in a deployment diagram in StarUML?
I'm trying to create a complex deployment diagram in StarUML for a system, but I couldn't find a way to add components or artifacts inside a node (for example device). So how can I do that in StarUML?
- 146
2
votes
0
answers
51
views
How to add nested states inside a composite state with entry and do activities in a state diagram in StarUML?
I'm trying to create a complex state diagram in StarUML for a system with composite states, but I couldn't find a way to add another simple or composite state (nested states) inside a composite state.
...
- 146
7
votes
1
answer
148
views
How to assign n number of weighted articles of different colors to m groups
We have some articles having different colors and weight like :
Blue(8) Blue(4) Blue(1) Red(4) Red(1) Black(16) Black(2) ...... n elements*
We need to divide these into m groups such that weight of ...
0
votes
1
answer
65
views
Database level design for undo operation
I have an entity "MyEntity" which has some fields - "StartDate", "EndDate", "Color".
It can have multiple records, and each record is sometimes updated. I need ...
- 235
-4
votes
1
answer
50
views
Local DB vs. Payment Provider Records: Transaction History Strategy
I am in the process of integrating a third-party payment provider into my app.
I am at a crossroads, seems to me that anytime a user want to see their transaction history, I should hit the third-party ...
- 626
1
vote
0
answers
134
views
Reading Health Connect Data Simultaneously Without App Pausing or Delay?
I'm developing a workout tracking app that integrates with Health Connect to collect and process sensor data during a workout session. The expected workflow is:
The user starts a workout.
Health ...
- 39
0
votes
0
answers
95
views
render problem in xml file in Android application development(Android Studio)
Problem with Android Camera App: Layout Rendering Errors and Crashes
I'm building a real-time number recognition app but facing multiple issues:
XML Layout Rendering Failure
activity_main.xml shows &...
0
votes
0
answers
56
views
C#: How to ensure thread-safe, single-instance objects for valid property combinations?
Context
I'm working on a C# project where I want to achieve the following behavior:
I have classes C1 to Cn with specific valid combination for their properties.
The valid property combinations are ...
- 113