I am following a nodejs and mongoose tutorial and the only way i can query the collection is via the .collection property. Every tutorial i see, says Model.find() or Model.findOne() are legal but i keep getting the same error. My…
Sample {rating: 2} {rating: 3} {rating: 5} ...... What I am trying to do : var result=db.movies_pipeline.aggregate([{$group: {_id:null, "result": {$avg:"rating"} } }]). // output : [ { _id: null, result: 6.713884823964879 } ] db.movies_pipeline.find({ $expr: { $lt: [ "rating" ,…
I'm trying to write unit tests for my .NET Core API's service layer with NUnit and FakeItEasy and I have troubles with faking the connection to Mongo. The service is from the Microsoft documentation with small changes. Here is my…
I have a Go program which uses Mongo DB. I run it from my home pc and I keep getting this error very often: panic: server selection error: server selection timeout, current topology: { Type: ReplicaSetNoPrimary, Servers: [{ Addr: cluster0-shard-00-00.tvm1o.mongodb.net:27017,…
I am trying to update my mongodb database by Id but I am getting error userId.save is not a function. What I did was get all the databases data by Object.findById then used Object.assign to assign an updated value to…
I need to get total count of objects in the "photo" array field, and compare it to the value in "mls_media_count" field, so that I can detect when the values do not match. open_houses:null open_houses_lock:false photos:Array 0:Object 1:Object 2:Object 3:Object…
I have a database 'Product'. Which contains a collection name 'ProductLog'. Inside this collection , there are 2 documents in the following format: { "environment": "DevA", "data": [ { "Name": "ABC", "Stream": "Yes" }, { "Name": "ZYX", "Stream": "Yes" }…
I building a calendar app with React & Express.js & Mongo DB the calendar has month view displays weekly events, and i want to delete these events automaticlly after 30 days my schema.ts: import { Calendar } from "../types"; const…
I'm trying to perform user validation using if statements but on testing using post man, I keep on getting only the first return statement 'Email is required ' even after adding a valid email address and also an invalid email…
I'm learning the MERN stack and trying to create an authentication, but now I have a problem, whenever I'm trying to register, I have an error 'TypeError: User.create is not a function'. I think that I have a problem with…