mongodb Questions

Mongodb – How to update some collection with different query parameters and with different set values?

I have an array of mongoDB collection - [ { "_id": "630499244683ed43d56edd06", "userId": "630499234683ed43d56edd05", "isPaid": "true" }, { "_id": "6304c19bda84477b41b4bbfa", "userId": "630499234683ed43d56edd05", "isPaid": "true" }, { "_id": "6304c1b5da84477b41b4bbfb", "userId": "630499234683ed43d56edd05", "isPaid": "true" }, { "_id": "6304c1cbda84477b41b4bbfc", "userId": "630499234683ed43d56edd05", "isPaid": "true"…

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MongoDB Not Incrementing in Update Query

August 25, 2022
Andrew Vargas
2 Answers

I am attempting to increment the quantity of a line item in a cart object. Each Line Item has its own ObjectId as the same item can be added, but will have different attributes needed to process the order. Meaning…

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Mongodb – HTTP requests in React app are not working over a network connection, but they are working on localhost

August 25, 2022
Cole Ogden
8 Answers

I’ve been building a React app for a while now and have been testing responsiveness across multiple devices. The React app itself works perfectly fine on my local machine. When accessing the React instance over the network, all HTTP requests…

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Mongodb – get does not return the data in express

August 25, 2022
Melek Makni
3 Answers

I'm working with a simple GET request but it returns nothing in the browser with no warnings. I checked all the connections to Mongoose works perfectly and collection name are correct. const uriAtlas = "mongodb://localhost:27017/appfullMern"; mongoose.connect(uriAtlas).then(() => console.log("successful connexion DB")…

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Mongodb – Extract list of data from collections

August 25, 2022
Hades
2 Answers

I have a list of collection like the following in mongodb { _id: ObjectId("6087feeef467a4320883daf3"), name: 'group 1', admins: ['adam', 'ken'] } { _id: ObjectId("2087feeef467a4320883daf3"), name: 'group 2', admins: ['rebecca'] } { _id: ObjectId("9987feeef467a4320883daf3"), name: 'group 3', admins: [] } I…

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MongoDB Unrecognized expression '$replaceOne'

August 25, 2022
Omer Eshed
2 Answers

I'm trying to run a query to replace a few pattern in my collection: db.collection.updateMany({ lastImageUrl: { "$regex": "kidplus-bucket-eu" } }, [ { $set: { videos: { high: { videoUrl: { $replaceOne: { input: "$lastImageUrl", find: "/kidplus-bucket-eu", replacement: "/kidplus-bucket-demo" }…

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Mongodb – How do I get comments count while fetching posts

August 25, 2022
Ben A.
2 Answers

I have two collections Posts an comments. I am storing comments with postID. I want to show comments count field when fetching all the posts data. How do I achieve this? // posts { postID: '123', title: 'abc' } //…

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Mongodb – MongoError: connect ECONNREFUSED 127.0.0.1:27017(Mac workflow)

August 25, 2022
Stuckinsidejake
2 Answers

Same problem as MongoError: connect ECONNREFUSED 127.0.0.1:27017 but for Mac users.

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Mongodb – Heroku node.js deployment

August 24, 2022
Aziz Rezgui
2 Answers

This is my first time deploying a node.js server with heroku, apis fun fine on local, but now it seems like heroku wont recognise nodemon (sh: 1: nodemon: not found), it seemed like a popular problem in forums but i…

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Mongodb – Why is there no message in mongoose error object?

August 24, 2022
Pranat Karode
2 Answers

I am making a user signup API, where name and email are set to be unique. When I send a JSON object which has a the same email address as an existing user, it gives an error as expected. But…

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