Getting 500 error due to no mongo connection

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) {
    fn(...args);
  } else {
    mongoose.connect(process.env.MONGO_URI);

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

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

[pizzarob]

@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.

[goncaloneves]

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.