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Getting 500 error due to no mongo connection

See original GitHub issue

When using this plugin for some reason it breaks my database connection. Any ideas why?

{"error":{"name":"MongoError","message":"no connection available"}}

I use the following function to connect to mongo before running my lambda functions.

const mongoose = require('mongoose');

mongoose.Promise = global.Promise;
let cachedDB = null;

module.exports = fn => (...args) => {
  const [, context] = args;

  context.callbackWaitsForEmptyEventLoop = false;

  if (cachedDB && cachedDB.readyState != 0 && cachedDB.readyState != 3) {
  } else {

    mongoose.connection.on('error', err => {
      console.log('Connection Error');

    mongoose.connection.once('open', () => {
      cachedDB = mongoose.connection;

Issue Analytics

  • State:closed
  • Created 6 years ago
  • Comments:8 (4 by maintainers)

github_iconTop GitHub Comments

pizzarobcommented, Nov 9, 2017

@goncaloneves sorry you took it that way. condescending comments about how I’m doing it wrong don’t warrant a thank you in my book. I won’t be using this plugin.

goncalonevescommented, Nov 9, 2017

And another thing, that mustn’t go unmentioned, the next time you open an issue like this one: Say thanks when someone helps you and you expect them to solve your code problem.

Open source tech is about politeness, being thankful and contribute. For all the rest, is a well paid service.

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