07 - Use model.findById() to Search Database By _id - MongoDB and Mongoose - freeCodeCamp Tutorial

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MongoDB assigns each document a unique id on creation. We can call the findById() method on a model, with an id to pick out any document with that id as an object.

Concepts:
findById()
Finds a single document by its _id field. findById(id) is almost* equivalent to findOne({ _id: id }). If you want to query by a document's _id, use findById() instead of findOne().

Model
Models are fancy constructors compiled from Schema definitions. An instance of a model is called a document. Models are responsible for creating and reading documents from the underlying MongoDB database.

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MongoDB is a cross-platform document-oriented database program. Classified as a NoSQL database program, MongoDB uses JSON-like documents with optional schemas. MongoDB is developed by MongoDB Inc. and licensed under the Server Side Public License (SSPL).

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Could you please say me what does the variable person stands for ??

frankokcharlie

Is there a way to return an object from model.find() where the fields are mapped to their alias value. I need to convert _id to some other alias name. I am using mongoose node js

jyothinkjayan

In findById() method the user did not know Id present in database .. so how will the user use that req
?

AliAhsan

07 - Use model.findById() to Search Database By _id - MongoDB and Mongoose - freeCodeCamp Tutorial

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