mongoose retrieves empty array from MongoDB (NodeJS/AWS Lambda)

Question

I'm creating a connection for my MongoDB Atlas using NodeJS in a AWS Lambda function. I was able to make a successful connection, but when I do the .find({}) to get all data I get an empty array.

Lambda

const mongoose = require('mongoose');

let conn = null;

const uri = 'mongodb+srv://xxx:[email protected]/test';
let M = null;
exports.handler = async function(event, context) {
  nodejs-aws-lambda-mongodb-atlas
  context.callbackWaitsForEmptyEventLoop = false;
  if (conn == null) {
    conn = await mongoose.createConnection(uri, {
      bufferCommands: false,
      bufferMaxEntries: 0,
      useNewUrlParser: true
    });
    M = conn.model('Todo', new mongoose.Schema(
      {
        title: String,
        description: String,
        date: Date,
        status: String
      }
    ));
  }


  const doc =  M.find({});
  console.log('items in the DB')
  console.log(doc);

  return null;
};

Documentation Mongoose AWS Lambda: https://mongoosejs.com/docs/lambda.html

UPDATE:

 M.find({}).exec().then(function(allDocs){
    console.log('getting al docs')
    console.log(allDocs)//[]
  });

MongoDB Atlas

Should have been mongoose.model instead of conn.model

Ashh
– Ashh

2019-06-06 18:06:00 +00:00
Commented Jun 6, 2019 at 18:06 — Ashh
– Ashh, Commented Jun 6, 2019 at 18:06

mr.freeze · Accepted Answer · 2019-06-06 17:34:13Z

1

find is async so I think you need to do:

M.find({}).exec().then(function(allDocs){
   //do your thing
});

or await it

let alldocs = await M.find({});

edited Jun 6, 2019 at 17:34

answered Jun 6, 2019 at 17:28

mr.freeze

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2 Comments

Patricio Vargas Over a year ago

Hi! Thanks for the help. I didn't work tho. I have updated my question

mr.freeze Over a year ago

What happens when you use await M.find({})?

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