Questions tagged [mongoose]
Mongoose is a MongoDB object modeling tool, written in JavaScript, designed to work in an asynchronous environment.
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Grouping and summing by condition from three mongodb collections
I have three mongodb collections. I would like to group the collections by date, month and year, then sum by condition in order to display totals from the three collections in one table. However, i ...
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Cafegent backend: table management API using Express JS
I a new to coding and certainly new to this site. I apologise advance if I offend anyone or any rules.
What should I do to further improve the code. Any suggestions would be appreciated.
This code for ...
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1
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A React - Typescript custom hook for any request (GET, POST, PUT, DELETE) to my back end
I'm building a full stack exercise app and some of my objects include routines, exercises, exercise sets etc. Instead of writing out specific get, post, put and delete requests for each resource, I ...
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Basic REST API for manipularing a MongoDB collection, using Node, Express, and Mongoose
I'm practicing back-end programming and NodeJS. As an exercise, I'm attempting to build a REST API for a MongoDB collection. I'm also learning to use the Express and Mongoose middle-wares, so that's ...
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Is this nodejs web-application spaghetti code?
I recently interviewed for a backend developer role at a startup involved in financial products, as a 2020 grad. The take-home assignment they had me submit had a few basic goals and they recommended ...
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What's the proper way to do MongoDB aggregation query with optional parameters?
I have this api endpoint where i want to lookup a user or multiple users schedule and also specify the month or/and the day when doing the query. My code works, but i feel like there is a better, ...
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"Clean Architecture" design pattern with Node.JS and MongoDB
After some time poorly designing my web applications' backends (mixing database calls with the controller, etc.), I have decided to try the "Clean Architecture" approach.
In this example I have a ...
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108
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Modeling mongoose schemas
I'm in the process of creating my first web app using node with mongodb on the backend. I could use some opinions on the schemas/models I've set up.
I have three schemas: User, Pet, Food. Here's the ...
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Express error if agency not found middleware
In an api I'm building, I have multiple routes that require an agency to exist before any action is performed on the requested agency.
To avoid repetition I've written some middleware to check that ...
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106
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Writing error handling and users routing for my JSON RESTful API
I'm currently making an app for my side project and I was looking to get some insight on the main js file, what can I improve, the error handling, what am I doing wrong, etc. I'm mostly confused about ...
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393
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MongoDB BulkWrite - create or update a sub document within an array
I have a series of Events (roughly 10-20 events that will be dynamically created per month):
Event Model:
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Clean code: Permission with middleware
In my example, I have four models: User, Company, Project, and Plant (though my project technically has more: Plant, Job, Team, etc.).
...
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Checks user level and limit the data before saving it to mongoDB
I have a function that checks user level and limits the data before saving it to mongoDB database (pre 'save' middleware for mongoose).
It have been getting complexity warnings and tried to rewrite it,...
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376
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Upload .JSON product list to MongoDB and upload image to AWS S3
I'm using Node/Express/Mongoose to accept a JSON file containing a list of product details. These products are looped through, the images are uploaded to AWS S3, and the product is either accepted or ...
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Mapping properties between two Objects of different structure
Something I've found myself having to do reasonably often is map properties from an Object (usually a heavily nested MongoDB document) to a different 'shape' to then pass it to a function call or API ...
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Saving a submitted Mongoose model, possibly with an uploaded image
I have some code which saves a mongoose model from the submitted form data. However the user might also upload an image along with the form, which needs to be saved on the server (moved from the ...
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MongoDB database connector on NodeJS
What my code does
I am building an Express API server with mongoDB as my database.
I have a list of players which must be added to 2 mongoDB collections (teamList and countryList).
The data schema ...
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Mongoose schema to store items from Wynncraft's API
I am making a Schema to store items from Wynncraft's API.
See an example assortment of items here:
https://api.wynncraft.com/public_api.php?action=itemDB&search=a
I have not finished making the ...
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4k
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post Like/Dislike with mongoose/mongodb
Right now my route is doing the following:
Searching for the post by id from the request parameters
Check if the user already likes the post
If the user likes the post, then increase ...
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50
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Creating Mongoose model
I'm creating a Mongoose model for a web service. I have a secondary index on facultyId because majority of the reads would want to search by ...
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Javascript RPC Call Handles Data and Returns DB Response
I have a service within a larger set of microservices that's handling a RPC call. My function mainly just parses through the request, uses the data to insert data into our MongoDB database, and then ...
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Send Response To Browser without DB save confirmation
Just reviewing my own code and noticed that I'm saving info in the DB and WAITING for that to respond before I send info to the browser, although I'm wondering if it would be more performant to not ...
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107
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Session generator/checker utility for a server
I wrote a utility for generating and saving sessions in a MongoDB database as well as checking the session to make sure it's valid.
I'm a beginner when it comes to promises and I have a feeling that ...
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1k
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Finding multiple documents
I wrote a Mongoose Node/Express application. I have 4 documents. I am trying to write a route (end point) to get all seats for a table with their full data. I get a response like I expect.
I want to ...
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Mongoose query using conditional formatting and regex
I this the function createQuery is fully functionally, but I would like a review on it. I'm pretty sure this can be shorten and most important (improve performance). Any ideas?
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328
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Exporting functions that manipulate mongoose models
I have the following code in a file called database.js which will handle all the database operations for my small application. For some background, this application ...
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163
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Simple registration with NodeJS and Mongoose
I'm new to Node.js (and also backend) for only a week, and now I'm trying to do a simple registration. I found that it's really hard to reduce complexity because pretty much every callback is error-...
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Mongoose / MongoDB schemas for blog posts and authors
I'm programming a model for a blog with authors and posts. I was following this doc: Mongoose Query Population
My concern is that the createPost function is inefficient.
Another option is to nest ...
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129
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Ensure every element in array passes asynchronous test
I've written a function which ensures all objects in the items array belong to the user. This involves a database check, which ...
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1
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62
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Loading information about a competition every time the page is loaded
I am using KeystoneJS to manage data and my APIs (which includes Node.js, MongoDB, and Express.js). It uses Mongoose to connect with MongoDB; Keystone queries are essentially the same as Mongoose ...
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Mongoose: find() and count() query
Background
I have a query in Mongoose that finds a set of objects, and then returns these said objects together with the total number of them:
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173
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Promises with Express/Mongoose to send comment notifications
I'm building the backend for a mobile app project.
Below is my createComment controller.
The challenge for me is that I want to send notifications out to the <...
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229
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Verifying requirements before deleting a user-parent-student-school relationship
I am new to node, after I finished my APIs I realized that all of them are a mess, and are a callback hell, this forced me to learn about promises, now it was all good until I faced an API that has ...
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REST Server for Users using Restify and Mongoose
I am creating a REST API to access a database of users. I am new to Node.js and developing REST APIs in general. I am also trying to use best security practices.
main.js
...
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Storing products in MongoDB with support for sorting by their number of followers
I'm loading products via an infinite scroll in chunks of 12 at a time.
At times, I may want to sort these by how many followers they have.
Below is how I'm tracking how many followers each product ...
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273
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Promises in mongoose
I've implemented a promises in mongoose to reduce the amount of callback hell but I am not sure whether my technique is correct.
The scenario:
Before I can save my schema I want to run some ...
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145
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CRUDL actions on MongoDB collection using Mongoose and NodeJS
I am using Mongoose ODM and NodeJS to implement CRUDL operations on MongoDB for further use with REST API. Initially, I've implemented functions using Promises but then switched back to callback style....
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Avoiding nested callbacks when using MongooseJS
I'm diving into the world of nodejs and mongo. I am playing around with a simple app that uses MongooseJS to talk to Mongo. I have been looking at examples and some GitHub projects for references, but ...
user19801
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'join' MongodDB collections with a for loop
This is a very simplified version of my query. Is it acceptable to join the two collections for the client with the use of for loops?
There could be up to 2,000 books, which also means there could be ...
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2k
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Trade off in database efficiency versus a nested for loop on client
I built an app where a user has a recipe box with recipes in it - for the db, there is a user and recipe model, user has "recipeBox" property. The recipebox is an array of objects like so:
User ...
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A plugin that integrates Angular Smart Tables with Mongoose DB for server side pagination
I'm using Angular Smart Tables with data that might become a huge set of documents and rows. So rather than client side processing of the data for pagination, I borrowing code from two Mongoose.js ...
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Beginner's To-do app with Node.js
I get the feeling the code for this to-do app is not secure. I am just a beginner, and I don't know much about coding style so do you think it is conventional/elegant?
Please don't hesitate to ...
user66351
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256
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Mongoose and Hapi/Express promise handling in controllers
I'm switching my code to promises - mostly as delivered by Mongoose. I use Hapi though I think something similar would apply to Express.
In my models/services I perform queries such as:
...
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Querying MongoDB for information on a collection of books
I have this huge chunk of code. Is there any better to write this code, or am I too paranoid that I check every MongoDB query for error?
The logic is here:
...
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Node.js script may have memory leak
I use this node.js script to migrate MongoDB collection to a schema to another. It does work if the collection is <20k documents, but slows down to a crawl and sometime throw a
FATAL ERROR: JS ...
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Making an efficient and healthy db call for a real-time browser game
I'm doing a calculation for a real-time browser game, where users can invest some of their balances to the site. I need to update their invest's based on ...
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Mongoose promise & error handling
I search for rails-like way of writing NodeJS code and it's more then hard to find the right way. The code quickly become bloated and unreadable. I would like my code to be as clean as possible.
...
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Controller code using the koa framework
I would like to gather ideas on how to refactor the JavaScript/NodeJS controller code below to be more aesthetic. The code is using the koa framework thus I use ...
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