mongodb - List Questions

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Node.js - unable to fetch data from body in ejs web application?

The problem is the form element in the template: Attribute enctype="multipart/form-data" sends the form as multipart form data type, the usual type used when for uploading files, but you don't have...

Tags: node.js, mongodb, forms

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Node.js - mongodb update only if the desired document is last, otherwise insert?

While I believe wrapping your existing work in transactions should be the option that involves minimal change, you can opt for leveraging the aggregation pipeline for all the work. $match to check fo...

Tags: node.js, mongodb

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Python - How to sort array in mongo document field?

You can use $sortArray to sort fields.employees based on first_name using the aggregate method like so: db.collection.aggregate([ { $match: { "fields.uuid": "some_uuid" } }, {...

Tags: python, mongodb, pymongo

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Javascript - Routing not correct in MERN, following a YouTube Video and downloaded the source code?

Taking a quick look in the source repo, it looks like it attempts to set the Axios baseURL using axios.defaults.baseURL = import.meta.env.VITE_API_BASE_URL; but there's no such value in the .env file...

Tags: Javascript, Reactjs, mongodb

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Mongodb - Mongo count number of objects grouped by a field value?

you can use aggregation query for it. db.collection.aggregate([ {$match:{source:'here'}, {$addFields:{count:1}}, {$group:{_id:'$date' ,totalDocuments:{$sum:"$count"}} } ])

Tags: mongodb, mongodb-query, aggregation-framework

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Mongodb - Bulk update using pymongo, merging python dictionary and DB collection?

Assuming id field is unique and there is a unique index built around it, you can put your documents in a $documents stage and $merge into the collection. db.aggregate([ { "$documents": [ /...

Tags: mongodb, pymongo

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How can I get the first and the last element from MongoDB collection?

Just chain up your 2 queries with $unionWith db.collection.aggregate([ { "$sort": { "insertedAt": 1 } }, { $limit: 1 }, { "$unionWith": { "coll": "collection",...

Tags: mongodb, mongodb-query

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Node.js - MongoDB doesn not not connect with "localhost"?

This seems like an IPv6 issue. Most likely, localhost is initially parsed as an IPv6 address (::1), and node.js doesn't try again when that fails. When you specify the IPv4 address 127.0.0.1, the conn...

Tags: node.js, mongodb, localhost

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Reactjs - Failed to compile module not found in React.js?

This is a Next.js app and the User.js file is located in src/app/models/User.js. The import should be import {User} from "@/src/app/models/User.js"; Read more about Next.js Path Aliases here: https://...

Tags: Reactjs, mongodb, tailwind-css

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