Questions tagged [resources]
Memory, files, network connections, I/O devices and other objects that have to be acquired and then released within a program. Please do not use this tag to ask questions about educational resources such as tutorials, books, websites or classes. Those are off-topic on Programmers.
107 questions
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How to initialize the same global resources from multiple modules independently?
I encountered the following situation: I have two modules, TokenService and Wifi which are initialized from main(). The modules themselves don't know of the existence of each other and function ...
- 419
0
votes
1
answer
268
views
Sink or non-sink API's?
This might be an opinionated question but I'm eager to hear your anecdotes as I'm at the beginning of designing a new API. Now I'm questioning whether I want this API to be a sink API or non-sink API. ...
- 419
0
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0
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89
views
In Laravel, how do you handle a resource being managed differently depending on a user role while using policies?
I find myself in a situation where I have two roles, "Admin" and a "Organizer". The "Admin" accesses the AdminUserController to update users, while the "Organizer&...
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-2
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2
answers
63
views
When to self-audit complex calculation [closed]
Given an app that manages appointment bookings, I'm separately storing purchases, bookings made, or cancellations (some of them non-refundable) and am required to show the sum of these, based on ...
- 105
0
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1
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291
views
Can resource which requires asynchronous cleanup be constructed synchronously?
More specifically this applies only to resources which have asynchronous dependencies themselves (but I think that's majority of them).
Concrete example:
class Foo : IAsyncDisposable
{
public ...
- 361
75
votes
4
answers
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views
What is the purpose of storing multiple lower resolution versions of the same original image?
Sometimes in apps I look into the Resources and find files for, for example, a 256x256 version, a 128x128 version, a 64x64 version, AND a 32x32 version, of the same icon. When I see simple geometric ...
- 1,189
0
votes
0
answers
142
views
HTTP polling vs WebSocket for very small payloads that don't change often
In our team we are currently discussing which technology makes more sense for an upcoming feature - HTTP polling vs WebSocket.
To give some context:
We are developing a TV streaming application (...
- 141
2
votes
1
answer
2k
views
How to store a vector of smart pointers, except some of them are owned by another object?
I'm making a basic platformer game. I have a Game class as well as Level class. The game object holds a pointer to the current Level object. A level currently has a std::vector of GameObject raw ...
- 147
0
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1
answer
322
views
Managing the disposal of network connections
I am writing a class -- let's call it MessageSender -- that needs to perform operations over the network. It basically does these things:
Take some configuration
establish a connection
send stuff
If ...
- 194
-4
votes
2
answers
82
views
How do browsers isolate traffic within a single tab?
I know that browsers use a separate port for each tab. However, in each tab, there might be multiple scripts doing data transfer over the network. How does a browser makes sure that the data is ...
1
vote
2
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146
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How do VMs and GCs treat objects which wrap yet active resources, but that are unreachable from user code?
I am building an interpreter in C for a simple programming language.
The interpreter is fitted with a built in garbage collector. The GC simply marks all objects which are linked from some root (the ...
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1
vote
1
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Managing .resx resources files for multiple languages application
I am currently developing a software for a multi languages environment using visual studio (en, fr and es). The soft is some kind of a 3d configurator, if I take the exemple of a car configurator, the ...
- 121
2
votes
1
answer
594
views
How can I accurately estimate the minimum resources my application needs?
For an application that is starting out I do not want to over pay for servers and resources that will not be used since the budget is very limited at this point. This will be a for an iOS and Android ...
- 131
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1
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100
views
Can iOS App Process Location Info while it's not running?
I want to ask about iOS application characteristic/behavior regarding processing location information. My previous wording isn't straightforward and seems to make it look unclear (which is my problem ...
-1
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1
answer
499
views
Updating last resource access time when clients perform a GET
We have many clients which, upon start up, request a specific resource on the server using an HTTP API (not RESTful). This resource is - currently, identical for all clients.
Naturally, since the ...
- 101
0
votes
1
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102
views
Designing a system of loadable resources with dependencies
Context:
For a video game, I need to load an arbitrary amount of resources which when combined would form a complete level of the game. These resources would be 3D models, textures, sound, etc.
Some ...
- 955
0
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1
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806
views
Are resource files (.resx) secure?
I have a resource file called AppSecrets.resx, and the bit of code below to check the login credentials of the "super duper admin user". This admin user is distinct from normal admin users, as it is ...
- 131
2
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1
answer
472
views
How to structure your URIs?
I am making a web UI and an HTTP API for editing JSON documents in collaboration (role and versioning system).
There are several types of JSON documents. Each type is described by a JSON schema, let ...
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1
vote
1
answer
145
views
Board support driver for custom board - API design - MCU resource configuration
I have got to implement a board support package for a custom board, and I would like to know your opinion about the different approaches of designing board support drivers. My custom board pupulates ...
2
votes
1
answer
77
views
recommendations regarding resource uri
lets say we have a "door api" and I want to create a resource to close the door.
I could do this in 3 ways:
traditional way using PUT with payload {id: XX, color: YY, closed: true}
advantages: ...
- 327
1
vote
2
answers
437
views
API - editing subset of attributes
Given a resource for which only its subsets of attributes can be edited, {E.g. invoice (resource) with a status (attribute) and paidAmount (attribute)}, in terms of API design, which amongst the ...
- 275
5
votes
2
answers
2k
views
Implementing reference counting from scratch or using shared_ptr for resource?
In an OpenGL application that I am writing, I want to have a simple shader class to wrap the OpenGL shader handle. Ultimately, I want this shader class to behave very similarly to a shared_ptr in c++ (...
- 161
2
votes
1
answer
153
views
Mark&sweep GC with automatic freeing resources
Note: I use term "resource" in opposition to memory here, resource here is file, socket, etc.
Is there a language implementation that uses M&S GC (but not necessarily only that kind ¹) that is ...
- 1,543
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votes
2
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1k
views
Should ID be given in URL if already secured with JWT containing ID?
Say I have the endpoints:
/users
and
/users/<id>
If I wanted to DELETE a user authenticated with a JWT token that contains the user object, should this DELETE handled go under /users or /...
- 351
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votes
2
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1k
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REST Api Design Patterns
I'm developing a REST Api using Node.js & Express.js. Recently I've started looking towards best practices for REST Api design but it's bit confusing so please bear with me.
For Example:
Lets ...
0
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2
answers
180
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REST Resource design
Hi I'm working with an API Where an employee can see his Vacation (overview and balance) and Request new Vacation. A manager can Approve or Reject a Request for Vacation. He can also create Vacation ...
4
votes
3
answers
6k
views
How do you format part of a resource?
Suppose you're building a web application in ASP.NET MVC, and you have to display some formatted text. A very simple example might be:
Click any of the links below, or click here to cancel. ...
- 26.9k
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1
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70
views
Who should read an external resource
I am often in the following situation:
I have a config file, specifying the path to a resource file
This config file gets parsed and the values (e.g., file path) are stored in a ConfigStore object
A ...
- 13
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votes
4
answers
1k
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How to design HTTP endpoint which search for single resource instance and returns it with another, connected instance
I have an endpoint returning single-element collection (I didn't return just object-instance to keep consistent with resource-as-collection convention, so only get-by-id returns single instance)
GET ...
- 41
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vote
2
answers
1k
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Making localization files easy to use for translators
I want to make my application available in many languages. I started using Resource Files, but there is a little problem with them. I want other people to have access to these files. Visual Studio ...
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Can a REST API return multiple resources as one single compound resource?
I'm in the progress of creating a REST API and currently, I'm encountering the following problem:
Foo is the first resource. CRUD operations can be applied via the /foo/ URI.
Bar is the second ...
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3
votes
2
answers
672
views
Why does C#'s System.Threading.Semaphore implement IDisposable and why doesn't java.util.concurrent.Semaphore implement Closeable?
In .NET framework, System.Threading.Semaphore is an IDisposable that requires manually invoking dispose. However, in JavaSE, java.util.concurrent.Semaphore is not a Closeable nor an AutoCloseable.
...
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vote
0
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143
views
Trade off between concurrency and stagnation in a Dining Philosophers problem analogue?
I am currently facing a problem in the application I am developing that I think is the same as, or an analogue of, the Dining Philosophers Problem.
In my application I have a list of N resources. I ...
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votes
1
answer
6k
views
Rest API calls with side effects on other resources
Let's say I have a mobile app, android/iOS and a java Spring back end. Given the mobile connectivity, the number of network round trips must be limited, ideally, 1 or less per screen.
Now, let's say ...
- 651
18
votes
5
answers
4k
views
How to organize localization string resources?
We're developing a large application, consisting of many small packages. Each package has its own set of resource files for localization.
What's the best approach to organizing and naming the ...
- 289
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4
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views
How do I elegantly store tabular data in code?
Let's say I want to store date which cannot be changed by the user in code. For example, my application supports ten types of reports, and I want to store metadata about it. Usually, I'd use a ...
- 9,838
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1
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views
How costly is DB data transfer as compared to data storage?
I've seen a number of answers (1, 2, 3) where they state that storage is cheap. So when designing a DB structure, it shouldn't be a main concern, or at least it doesn't rank very high in the list of ...
- 267
1
vote
1
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435
views
When should I consider using a string table resource over a string constant in my Win32 application?
I've written a fair bit of Win32 desktop apps as hobby projects throughout my career but I've never used resources of the type string table in any of them; usually I either hard-code strings or build ...
- 351
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votes
2
answers
9k
views
Does RESTful response always return a 404 and empty content when an array is expected but the result is empty?
I worked with Ruby on Rails and RESTful api before and now with Django Rest framework. For this question let's say we only consider the case of JSON but not XML. It seems that when we expect an ...
- 1,837
4
votes
1
answer
2k
views
Is it better not to .close() inside API method body when passed a Reader or InputStream?
There are plenty of similar questions that have been answered. Example here. However, they all have both the Reader and the InputStream within the same scope or method body, and so suggest to close ...
- 584
3
votes
2
answers
1k
views
How do I model a sortable resource in sql database? [closed]
I encounter this issue when I create REST API.
I cannot tell the exact scenario, but let's say it is for a website that has category and product resources.
Each category has many products and both ...
- 139
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votes
2
answers
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views
Should Java 8 Stream instances always be close()'d?
Quoth the Javadoc:
Streams have a BaseStream.close() method and implement AutoCloseable, but nearly all stream instances do not actually need to be closed after use. Generally, only streams whose ...
- 731
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4
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Will the Database connection be closed if we yield the datareader row and not read all the records?
While understanding how yield keyword works, I came across link1 and link2 on StackOverflow which advocates the use of yield return while iterating over the DataReader and it suits my need as well. ...
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1
vote
1
answer
66
views
Fill widget with data retrieved from internet
I want to retrieve data from internet and show them into a widget.
In particular, I've a widget with a QComboBox containing some service from which I can retrieve a list of exchange markets.
When I ...
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3
votes
1
answer
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How to deal with relative paths in out of source build?
An out of source build is a build which can be in any directory other than the source directory
I have a project which contains relative paths to some resource files, needed at runtime, which are ...
- 529
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votes
0
answers
179
views
Is there a language for defining restful web services? [closed]
I'm implementing a restful service automation tool for client applications. Basically, the tool takes a config file that defines restful resources, and creates some DTOs and resource classes for ...
- 992
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1
answer
1k
views
Why would we need to rollback twice before closing in a finally block?
I'm trying to implement the change in database connection closing suggested in this question's answers. More than once, I've come across this block of code at the end of my try blocks:
try {
-...
- 1,592
8
votes
3
answers
14k
views
Is there an issue with closing our database connections in the "Finally" block of a Try statement?
I'm doing some refactoring for our application, and trying to reduce the number of issues reported in our ISO Scan (a static code analysis tool based on HP Fortify). Right now, what I'm trying to ...
- 1,592
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4
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How do you find out what resources are unmanaged?
Looking through the .NET documentation, specifically the WebRequest class, I don't see any information indicating that I should wrap an instantiation of it in a using statement. Even the provided ...
1
vote
1
answer
89
views
What's the proper name for the type of security where we secure resources by ownerrship?
I work on a REST API that mixes two types of security:
First you have standard role-based security - so we have multiple roles such as administrator, read-only user, super user user, etc.
Then we ...
- 173