Cannot read property 'find' of undifined mongodb - node.js

Question

I am starting to implement mongoose in a nodejs project. I have created a test record in a collection to test the CRUD operations from the back, I am trying to test the find() property of mongo but I am not sure how to do it.
This is my connection to mongoose:
const mongoose = require('mongoose');
const mongoURI: string = "mongodb://localhost:27017"
const mongoDB: string = "testdb"
export const setMongo = async() => {
try {
let mongodbURI: string = `${mongoURI}/${mongoDB}`
await mongoose.connect(mongodbURI);
console.log('conected DB')
} catch (error) {
console.log('error DB')
}
};
This is my Schema:
const mongoose = require('mongoose');
const companiesSchema = new mongoose.Schema ({
name: {
type: String,
required: true
},
phoneNumber: {
type: Number,
required: true,
unique: true
}
}, {
versionKey: false,
collection: 'companies'
});
module.exports = mongoose.model('Companies', companiesSchema);
This is my resposity.ts:
const companySchema = require("../../schemas/companies")
const db = companySchema.Companies
export class Repository {
public async getAll(): Promise<any> {
try {
console.log('getAll()')
const comp = await db.find({});
console.log(comp)
} catch (error) {
console.log(error)
}
}
}
This is the error it shows:
TypeError: Cannot read property 'find' of undefined
How should I create the connections or queries to mongo?
UPDATE
How can I get the total of the data with the find() method? Is it possible?

Answer 1

you just import your model in your controller and then you can use your query like:
const Companies = require("../../schemas/companies")
export class Repository {
public async getAll(): Promise<any> {
try {
console.log('getAll()')
const comp = await Companies.find({});
console.log(comp)
} catch (error) {
console.log(error)
}
}
}
and for get count of your result you can use .count() after your query to count your result :
const comp = await Companies.find({}).count();