console.logging data from MongoDB - node.js

Question

I am still trying to comprehend Mongoose/Mongo
Now in terminal When I do something like this in terminal
use library
show collections
db.authors.find().pretty()
I get something like this in logged
{
"_id" : ObjectId("5bc8704f3a9828d5513505a2"),
"name" : "Aman",
"age" : "21",
"__v" : 0
}
{
"_id" : ObjectId("5bc870553a9828d5513505a3"),
"name" : "Rohit",
"age" : "20",
"__v" : 0
}
{
"_id" : ObjectId("5bc8704f3a9828d5513505a7"),
"name" : "Aman",
"age" : "21",
"__v" : 0
}
{
"_id" : ObjectId("5bc870553a9828d5513505a5"),
"name" : "Rohit",
"age" : "20",
"__v" : 0
}
Now, I want to have same data in my NodeJs i.e say, I want to find wherever the name is Rohit and want to link it with with some other db or schema.
how can I get the same output which I just obtained by running the above given command in terminal window of mongo in NodeJS
Obviously doing something like this console.log(db.authors.find()) won't work, so how can I get that?

Answer 1

This is how I usually write my database queries.
First create a schema that your model will follow. Don't worry this schema is flexible and you can change it at any time without affecting old data.
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var authorSchema = new Schema({
name: {
type: String,
required: true
},
age: {
type: Number,
default: 20
}
});
Next create a model from your schema.
var authorModel = mongoose.model('authorModel', authorSchema);
Lastly query your model and get the value you need
authorModel.find(
{
name: 'Rohit'
},
function (err, result) {
console.log(result)
});
I put my schema and controller on separate files. How you organise your code structure is up to you.
I pretty much followed this blog when I first learnt to build APIs on NodeJS. You might find this useful as well!