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Questions tagged [web-applications]

Web applications are applications that are accessed over the "web", which can mean the Internet, or an internal network (an intranet).

73 questions with no upvoted or accepted answers
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555 views

Symfony2 - Best aproach for a plugin system

Symfony2 is handling all its things in bundles in /app or in /vendor. This is fine if you are handling and managing all by yourself or Ops that handle all needed things. But I haven't found a good ...
4
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1answer
759 views

Separating AngularJs and Django into individual Apps?

I am building a web application using AngularJs and our web server is built in Python Django Rest Framework. I would like to have the two projects separated and not coupled. In my current setup the ...
4
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0answers
389 views

How to deal with runtime changes to tenant-location in a clustered, multitenant web application with app-managed datasources?

I have a Java web application that supports multi-tenancy to keep customer data separate. Connection pools to each customer database are created at runtime. The details of each customer shard (...
3
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2answers
166 views

Authentication setup advice for web app and its backend API

I am fairly new to web development, and I am learning to build web applications. I am facing a problem figuring out how to set up authentication mechanisms for a multi-user application. Let me provide ...
3
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1answer
93 views

Externalized properties for an Java EJB application

I am not sure if this is the right place to post this question, but I think this might be better suited than Stack Overflow. I have got an online application, a Java EJB application. Requirement is ...
3
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0answers
494 views

B2B SaaS application architecture

For my angularJS application I'm using asp.net web api backend. For B2C I'm normally have one scalable backend application and each customer can have an account to use the services. There is one ...
3
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0answers
969 views

Explanation java/web (tomcat/coyote/JSP/Servlet etc..) in 'Perl-world' terms

Analyzed one web-server. for the http request I got: apache 2.2... what redirects to https, and for https got apache-coyote 1.1. and the server runs XWiki java app. Trying to understand how it is ...
3
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1answer
174 views

How can I interact with a client-side sound device through a web application?

I'm trying to find something that will allow a web application to analyze the line or microphone input from a client and transmit that data to the server. I've looked briefly at WebRTC and, although I ...
2
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1answer
35 views

Best practice in synchronized form data validations (Web apps - Client-Server)

Here we go again with topic what was asked many times all over internet, but I not found any good enough answer: What are best practices in making client and server side validations synced? I was ...
2
votes
1answer
40 views

Access control to Django App running on private server

I am a self-learning programmer (with a fair share of python knowledge), and currently a company asked to develop a simple application so that they can track employee expenses (and I thought of using ...
2
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0answers
55 views

How to approach large amounts of data to be stored and mapped?

I am developing an iOS application that plots a large number of locations on a map, I have selected a data structure that is suitable for the pins on the map, though I am stuck on an approach for the ...
1
vote
1answer
90 views

What is the best way to run multiple instances of a web app that requires state to be transferred between instances?

I'm working on a web app where users enter a "room." The state of these rooms is loaded in the server's memory at all times, and is synchronized with the clients via websockets. What's the best way to ...
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0answers
55 views

How to Implement Certain timeout session on multiple pages of a website - REACTJS

Suppose there 5 pages to a website. User flow will be 1->2->3->4->5->FINISH. I want to implement is that whenever a user enters page 3 a timer starts and if he doesn't finish a task ...
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0answers
133 views

Separating WebRTC Signal Server and Media (SFU) server

I'm working on a WebRTC VOIP product. I am not using peer-to-peer connections, but instead having clients connect to a SFU which distributes audio to everyone involved in a call. From my ...
1
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1answer
86 views

Directing user to a specific screen on App after he installs the App

I have a very specific use case. We are working on a Project where user can buy the tickets to an event. In this, we are asking the user to enter an Email id where he can receive the email from where ...
1
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0answers
54 views

Seeking Tips on PAAS Architecture

I've developed a java web app using Vaadin, and using Jelastic/MassiveGrid as the PAAS. However, I need advice on proper architecture for my needs. Desired Outcome: Users land on my homepage where ...
1
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0answers
59 views

What is the best apporach to a customizable theming in SPA Architecture

I'm interested in developing single-paged application and there are few question I need to get clarified before moving on. One of them is customizable theming implementations. As for traditional web ...
1
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0answers
543 views

Best way to handle large amount of objects

I'm building an javascript application where I need to register devices to an specific room. So I thought, I'm making my room_name as main key (room name is unique). And I'm going to add the devices ...
1
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0answers
47 views

Using fixtures to maintain static database assets

I have a pattern that's something like this: Create a database model UsagePlan which stores how many usage tokens a paid customer receives in exchange for its respective monthly fee. Through my ORM (...
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0answers
47 views

Maintaining different live versions of the cloud application

I have Microsoft Azure Cloud Application built with App Service. It is supposed to be always "up" for its consumers. When we need to do upgrade and we still need to keep the older one active for ...
1
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0answers
83 views

Choice of response type in web application architecture

I've been using various server side languages/frameworks for developing back-end web applications. Every server-side framework that I've been using has the capability for returning views/templates (...
1
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0answers
37 views

Splitting the application into two different hosting providers

Due to cost I am currently thinking of using AWS for scalable hosting of the node.js backend of the application that would be nice to have monitoring,load balancing and all the goodies of the AWS ...
1
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0answers
527 views

SPA with RESTful backend

I'm building an app based on ng-seed which is angular setup with routing out of the box. I'm backing the app with a rest interface of which I aim for Richardson level 3 compliance. Often it seems ...
1
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0answers
336 views

How do I handle authentication in an ASP.NET webapp with offline-capable client code?

I hesitated before writing this question, as it sounds like I'm after an opinion without trying anything yet. That's not the case, I just don't want to go down the wrong route with architecture - it ...
1
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0answers
670 views

Django Project with Multiple Apps on Heroku

A newbie question: I've been able to deploy a few simple Django apps on Heroku very easily. However, now I am tackling a much larger project that consists of several apps (all Django and all with ...
1
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0answers
753 views

Should I have a separate “Application” server to handle the REST traffic, or just one server to handle both browser and API (REST) traffic?

Let's forget scaling or cloud configuration for a second. Think of an application with a few platforms: Mobile (iOS, Android) Desktop (Windows, OS X) Web (HTML/CSS/JS) The question is regarding the ...
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0answers
289 views

Implementing a universal timer for a game with multiple players in spring mvc

I am trying to create a simple online card game with multiple players. Basically, there's a dealer and multiple players. I have have already implemented most of the game and it's working fine. now I ...
1
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0answers
57 views

Scale parts of image to fill bezier path with no wastage

I want to be able to take an image and stretch/contract each pixel row (or 5 rows for performance) to fit within a curved shape. I've been searching for this for the last few days and have turned up ...
1
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0answers
149 views

What is the integration architecture used by Github for its web interface?

I am amazed by the way Github integrates with different systems like Travis. They are separate companies, but yet Travis builds blend seamlessly everywhere in the Github interface. Yes, i am asking ...
1
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0answers
63 views

efficient caching with complex user rights

I am currently learning about memcached/redis, and I am trying to figure out how could I use this kind of technology at work. Now I understand that you should mostly cache data which is common to ...
1
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0answers
626 views

Atmosphere + Long Polling : No message distribution?

I'm experiencing a strange behavior with Atmosphere + Long Polling. I'd like to have a broadcaster per user, so I have registered a broadcaster on resource suspension with id : /user/. I use ...
1
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1answer
606 views

What design patterns exist for large dataset manipulation within MVC for a rich client data grid?

I want to feed an HTML5 data grid with large data sets that the client will want to manipulate in different ways, e.g. aggregation, grouping, pivoting. The data comes from different web services and ...
1
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1answer
138 views

Promise in Web MVVM

In MVVM (or Presentation Model), my (web) view listens to a CLICK event and calls a function of the Presentation Model to ask for the result. To clarify, the presentation model lives browser-side. ...
1
vote
1answer
1k views

Web application / Domain model integration using JSON capable DTOs

I'm a bit confused about architectural choices for the web-applications/java/python world. For c/c++ world the available (open source) choices to implement web applications is pretty limited to zero, ...
0
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0answers
27 views

Design for import/export of data for administrator of n-tier application

In every app, we are always getting requests that simply take data from a file and import them into the system or export from system to file/ftp etc. This is mostly used internally by the ...
0
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0answers
30 views

Handling session expiry in a javascript app without losing app state

Currently, when our SPA detects that our session has expired, we redirect to another page (domain) to login through a SSO solution, before being sent back to the original page. This has some ...
0
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0answers
48 views

Web application architecture - consistent UI and database

I'm sketching out the architecture of a side-project of mine which is an app that let's logged in users to add points on a map with their location. So the steps would be the following: user logs in ...
0
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1answer
59 views

Pattern to encrypt / decrypt data to / from a server without entering the secret key each time?

The title maybe it's a little bit confusing but I am certain that what I want to achieve is a common pattern, even if I didn't found anything on internet. I'm developing a web app that store ...
0
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2answers
111 views

Hosting a standalone .Net Core Web Application

We've created a .Net Core Web Application and are deploying it as a stand-alone exe. The main reason for deploying it stand-alone was to not be dependant upon the version of .Net Core installed on the ...
0
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0answers
25 views

What layer/object should I add a Helper method to get all Product objects from?

I have a Helper class and a Service class currently and I read this other question about the difference between a service class and a helper class and got confused. A method to get all products in my ...
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0answers
17 views

Per-organization subdomains or single domain for a B2B app?

I'm currently in the design stage of a web app that will be set up at the organization level, with the end-user admin managing their own users and policies. Each organization will get the same ...
0
votes
0answers
85 views

How can I economically scale to 100+ instances of my .Net Core app without using 1 container per instance?

Currently I have a .NET core application, which fires up a new thread to hold each customer account. Each thread instance: Is long running for many months or more Holds open SignalR Websockets and ...
0
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0answers
15 views

spatial element count data structure eg: R-Tree, with filtering

Background: The application is a web map application with a LeafletJS front-end and NodeJS back-end with Postgres database. The application is to be used on both desktops and smartphones/ tablets in ...
0
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0answers
22 views

Different approaches for user levels

I'm writing a simple web application that allows users to login on different levels. Example: admin: may access to everything in read/write manager: some sections are in read/only operator: only few ...
0
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0answers
11 views

Open ID Connect Session Management Access/Refresh Token vs Session iFrame

We have a web app in which we allow users to log into the app using any Open ID provider(e.g. Okta, Google, Facebook etc.). We want to implement the correct Open ID Connect prescribed methodology/...
0
votes
1answer
120 views

Synchronize multiples REST api, centralized into 1 web application

I am developing a web application for a client, connected to 4 differents sources : E-commerce website CRM Emailing platform Surveys platform All the sources have REST Api's. The web application ...
0
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0answers
17 views

Keep sync Authentication Server user profile with App Server best practices

I have two servers first one is Authentication Server that handles refresh token, AccessToken and external login. On external login, I create user and store profile information like first name and ...
0
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0answers
132 views

Is giving sub reducers access to the full state a bad idea?

I've got a Redux app with a fairly flat state tree. All sub reducers handle one separate part of the state, and they are tied together with combineReducers. My problem is that in a few cases I need ...
0
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0answers
80 views

Pros and cons of setting super admin in users table

I'm structuring a RBAC in a Web system. My database tables looks like: actions id name resources id name permissions id action_id resource_id roles id name permission_role permission_id ...
0
votes
1answer
151 views

Help defining architecture - async messaging; web app as portal in web page

I don't know if this is a legitimate architecture that I've been playing with. It consists of nodejs servers for services and to create web app front ends. And it is using async messaging (Redis) to ...