I’m writing app in node.js. In the Order model I have a “userData” object that has an “email” element. How do I refer to “email” when using the find method? order model: use of the order: Answer You are missing some quotes for the keys. It needs to be “userData.…
Tag: mongodb
Method does not return whole object
When I call the method buildCommand, it does not return the property message, but I found out that if I remove some properties out of buildCommand, it works. This is the method I call This is how I call the method commandJSON looks like this UPDATE 2 Here is my whole Command Model Answer Command is just a Mon…
Export data from MongoDB with MongoExport and query
I’m trying to get a data which doesn’t start with “0”. This query works inside of MongoDB command line but when I do this with mongoexport as I’m getting an error And with like this {“number”: “/^(?!0)/”} it wont match… How could I parse that /^(?!0)…
Adding a created date field from _id to all mongo documents
I am trying to add a new field createdDate to all existing documents using _id field. I am doing this for easy readability of the documents. I tried following snippet but it is not working. This is the createdDate for all my documents now (after running the query): “1970-01-01T00:00:00.000+00:00” …
Node.JS – Product is not a constructor error
My code is as follows and gets me “message”: “Product is not a constructor” using postman. Router seems to be properly configured but now I don’t know what is the issue. File product constructor is placed at the right direction. When running node server I get no errors in termina…
MongoDb update with ElemMatch
I have a collection that has document structure like following: Mongo PlayGround As you can see, each document has basicDetails object and a tasks array. Each task contains some properties of its own and a subtasks array. I want to update subtasks’s description from ABC to XYZ where root level id is 1, …
Mongoose update replace entirely former document
I’m trying to update my document to remove a few fields I am testing onto further on in the frontend, I removed the fields with this: Thus when I look at it before my mongoose findByIdAndUpdate it has indeed none of these fields then I’m trying to update like so: But when I use the overwrite optio…
Bufferizing data from stream in nodeJS for perfoming bulk insert
How to bufferize efficiently in nodeJS on events from a stream to bulk insert instead of unique insert per record received from the stream. Here’s pseudo code I’ve got in mind: Does this look realistic? Is there any possible optimization? Existing libraries facilitaties that? Answer I ended up wit…
ReferenceError: require is not defined MongoDB
I’m trying to connect to my MongoDB database and I’m getting this error Answer You are attempting to use require() inside an ESM module (you can see the Object.loadESM in the call stack of the error) which tells us it’s an ESM module. You can’t use require() in that type of module. Ins…
How to handle for Cast Errors in MongoDB/mongoose
I am using mongoDB. I don’t like the default error message that is thrown by mongoose/mongoDB. I would like to check for the error type and if it is a cast error then I would like to send a different error message. Answer here is my function to do that. this function take an error and if it was a