Questions tagged [backend]

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6 views

How to access Excel from my backend?

We have a lot of business logic in excel files and we would like them to integrate in an web application ( a node.js web application). We don't want to rebuild the logic in an programming language, ...
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0answers
33 views

Designing Turn Based Android App with a Firebase backend

I'm working through how best to utilize firebase as a backend for my turn based rpg style game. The difficulty is that rather than turns taking place consecutively (p1 does his turn, it completes, ...
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2answers
50 views

When updating a model on a RESTful API, should there be an update endpoint per field? or one endpoint for the model?

For a RESTful API, consider a model schema as follows: MyCoolObject { field_a field_b field_c } Is it better to create one update endpoint to update one or many fields on the model? Or create ...
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2answers
106 views

Front end (or View) classes compared to back end classes

I am developing an E-Commerce Web application using C# (back-end) and JavaScript (front-end) for a computing shop. This application mainly displays each stored computer, and all information about it (...
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4answers
150 views

How to design around webapp Out of Memory crashing on export from SQL DB to Excel?

I have a monolith CRUD application with a feature - possibility to export some DB entires to an Excel file. The export is done within a background task. Often, however, when user presses the button ...
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45 views

Strategy for logging for a low latency multi processed web server backend

I've just finished a multi processed backend framework for a web server. The web server and processes are all written in C++.The web server sends a request to a free process which serves it back as ...
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1answer
58 views

Securing http communication between backend services [closed]

What is a good way to secure http communication between two backend services which are not hosted on the same network? One way might be to have a shared secret in both services but I feel like that is ...
-3
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1answer
100 views

When making a compiler, what's the best way for compiling to machine code in the backend? [closed]

I know that a lot of compilers use an assembler to compile to machine code, to make an executable (compiled program). Some people even made their own assemblers, or they just use an existing assembler,...
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2answers
139 views

What Is the Industry Standard of Specifying APIs for Frontend-Backend Handshake?

I am somewhat new to web development and maybe this question belongs to stackoverflow, but there is a human-interaction component here. Here is the scenario. I am serving some neural network models ...
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0answers
28 views

How to validate against changes to "illegal paths" in backend requests for complex data structures?

We are building a backoffice web application where people are making changes to an array of nested objects. Because of totally non relevant business reasons there are things that users cannot change ...
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1answer
123 views

REST APIs vs Message brokers for Backend to Backend communication

We are a wholesale marketplace and we have three main products in our startup. The products are: 1- the marketplace app that allows customers to view products and purchase online. 2- the seller app ...
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1answer
99 views

Using databases to store temporary results between the backend and frontend of a webservice

I have a multithreaded backend application. It is inputted x, and outputs y, and this makes up a "job". A job can take up to several seconds to complete. The application is fed input via ...
2
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1answer
79 views

What is a good approach to handle editing product images?

You have the following situation: You have an SQL database containing two tables product and product_images You would like the user to be able to add, remove, or move around existing images They can ...
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0answers
34 views

Architecture with a login

I am on my first big solo task and I am required to create an application that allows companies to work with permits, fill them out, get them signed etc. This web-app is with invite only i.e. it is ...
4
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3answers
480 views

Steps to achieve the best code quality?

Currently I'm on a project where my objective is to obtain the best code quality. We have unit, integration & e2e testing. The e2e tests are written by the Business team in cucumber and these ...
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0answers
26 views

Request and response validation

I am currently working on a project using Flask to make REST apis, blablabla. But, working with request validation tools that we use, I am thinking of whether it would be necessary to validate the ...
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1answer
221 views

Can "backend" be a subdomain?

Let's imagine an application where users can work collaboratively on projects. There's a project listing where a user can subscribe to a project, and a coworking screen where multiple users can work ...
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0answers
141 views

REST-API Frontend/Backend strategy/best practise for field-types and requests

I have simple single page application, using a rest-backend (Spring Boot) for CRUD-operations and an Angular 12 frontend. My requirements are not really advanced, yet I cannot find a tutorial which ...
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3answers
198 views

Frontend/backend SPA communication: how to handle a list of string options

I have single page application with an Angular frontend and a Spring REST-backend. What is the proper way to handle a list of string-based options in the fronted the enduser can select from, which ...
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0answers
10 views

Python Banking Transfers Systems Backend

I'm wondering how banks that use cards with chips for their transfers, actually recieve the information (like if the banks backend was written in python, how would the data be recieved, in a json ...
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1answer
65 views

Merge migrations from two different servers

I'm working on a project that has two separate versions of the API, v1, and v2 because they wanted to migrate from Javascript to Typescript. Both versions use the same database. Recently I'm having ...
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1answer
114 views

Variable WHERE clause while avoiding sql injection

I want the user to be able to provide a custom WHERE statement against a mysql-backed platform... do I need to worry about any possible SQL injection attacks notwithstanding invalid sql? See the ...
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1answer
141 views

How to let backend APIs communicate with each other?

I'm building a complicated frontend-backend application of which both the frontend and backend should be highly scalable and reusable. To serve these two requirements, I'm splitting the backend into ...
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0answers
68 views

To merge software solutions or not?

Software A is a Node/Express application using a MongoDB database. It is accessed mostly via RESTful endpoint by a mobile app built in RN and an admin dashboard via React web app. It also has a ...
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4answers
272 views

How to avoid the accident that an item price is updated right after a user clicks purchase?

This is not a real scenario. This is just my assumption that such an accident may happen if the the following events really occur in this chronological order First, a user clicked "puchase" ...
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1answer
79 views

Communicating state from the backend to the frontend while the user is logged in

Please note: although this question mentions Angular and Spring Boot (Java), and it would be great to get an answer from someone with experience in that stack, I think this is more of an architectural ...
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2answers
62 views

How to generate frontend URLs in a "12 factor app" service?

I'm working on a system with a user-facing frontend and with 1-n backend services which I'm trying to design according to the principles of the Twelve-Factor App. I'm now facing the task of sending ...
6
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1answer
658 views

Designing routes for my REST API

I'm designing a RESTful API and have come across a problem when it comes to designing my routes, specifically the admin routes. My application currently has 2 types of users: regular users and ...
1
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1answer
186 views

Best way to handle and combine client side and server side validations

I want to know if the way that I handle form validations is a good way. What I actually do is a very detailed client side validation to validate each field and with custom error message for the UI ...
2
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3answers
528 views

why and when is queues used in backend architectures?

I am implementing a backend with a typescript framework called nestjs and I was reading some documentation about their usage of queues. https://docs.nestjs.com/techniques/queues I have never used ...
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2answers
114 views

How to cache duplicate fetch and save calls that are fired within the same second

I have a service which provides an endpoint that fetches from another service, saves, and returns an record. Here are the details: The caller calls the endpoint using an identifier (say a customer's ...
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0answers
33 views

Building an app+backend with extraneous functionality for an existing web shop. How to handle authentication on the backend?

This is an architecture question as I've been asked by an existing web store to build a mobile app (they don't have a mobile app) that provides extra functionality to the store, a web admin panel to ...
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1answer
125 views

Good practices for frontend-backend communication

What are some good practices for handling communication between a frontend and a backend? From what I know in order to keep things loosely coupled you shouldn't just have your frontend have a ...
1
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1answer
318 views

Pipeline design pattern and immutability

I'm developing a backend service that is supposed to process items in a pipeline-fashion. Each stage is essentially a Function<IN, OUT>. So the current stage's input is the previous stage's ...
-1
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2answers
89 views

How should process be different for front-end vs back-end?

I'm looking for references that might help explain what I've seen in software engineering regarding processes for developing in the front-end vs the back-end. They are both difficult, but I tend to ...
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1answer
52 views

Message Strings in Backend

Its ok to have hardcoded strings on backend? Example: Log.e("Error connecting to the database") The text "Error connecting to the database" should be hardcoded there? Or should it be in a separated ...
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1answer
172 views

What are differences in application architecture in frontend and backend applications?

I'm pretty experienced with developing both frontend as well as backend applications, with a variety of programming languages and frameworks. I know the problem space and concepts involved in both ...
0
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1answer
2k views

Deployment / Release strategy for separated frontend + backend web app

We develop a web app which consists of a frontend and a backend project. The frontend is consuming an API that is provided by the backend. Frontend and backend are developed separately by different ...
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1answer
126 views

How should I design my API responses?

I'm working in a rest API for a turned based game from scratch, and I'm having some troubles figuring out the best architecture to do it. I need to explain how the game works and what is my ...
1
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1answer
44 views

Determining the service calls within the API based on the each consumer request

Currently, I have a rest API service which serves to many different consumers. One of the endpoints of API is for retrieving an order. Inside a single application, I am making 5 different service ...
4
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5answers
194 views

How to designing API JSON Response with nullable fields

We were discussing how to design a API response, for simplicity, think of having to give information of all the different types of facilities available in a city: { "city": { "cityName": "...
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3answers
925 views

code generation - would C be a good compiler backend?

In this and this stack overflow questions, the answers state that C as a compiler backend is a bad idea. But why? C has many compilers that can heavily optimize it. Every platform has a compiler ...
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10answers
13k views

How do I mitigate a scenario where a user goes to pay, but the price is changed mid-request?

This is kind of similar to the Two Generals' Problem, but not quite. I think there is a name for it, but I just can't remember it right now. I am working on my website's payment flow. Scenario ...
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1answer
91 views

Backend with many services

I'm mostly a Front-end Developer. One day I heard about such a thing at work like "authentication service", "registration service" and it turned out our product's backend has many services running ...
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0answers
42 views

Angular integration with back-end

We're developing a big project for our company, and they asked us to use Angular even though none of the devs have any considerable experience with it. The back-end is C#/.NET Core with ABP. My ...
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3answers
77 views

Proper DTO structure for a dynamic list of properties

I have an endpoint /api/properties which returns a dynamic list of properties, e.g. { userId: 1, groupId: 2, ... } The difficult part is that most of the properties are integers (ids) and I ...
6
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2answers
9k views

Authentication and authorization - front-end vs back-end dilemma

I'm working on centralized authentication and authorization API system and got stuck in front-end vs back-end dilemma. Front-end person is telling that should to have only one request to that API to ...
1
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1answer
162 views

Saving flags in the database without relationships to other tables

I have an admin panel which can set a lot of options which will affect some other services drastically. For example I got one that if I create a different category I can just insert it in the Category ...
2
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1answer
325 views

Should I keep my web app front end completely backend agnostic

I am very much an amateur developer. I have written a web app which uses parse-server as a backend. My question revolves around how agnostic the frontend should be to the backend (parse server)? For ...
1
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2answers
518 views

Excel Addin VBA, Backend/Frontend

I have a question regarding what is supposed to be backend and frontend for desktop applications and in this special case, an Excel Addin VBA. My application contains lot of forms and modules. I ...