Spaces:

Zhitomir
/

chat

Runtime error

chat / api /lib /db /connectDb.js

chat init

aa2e6af over 2 years ago

1.16 kB

require('dotenv').config();
const mongoose = require('mongoose');
const MONGO_URI = process.env.MONGO_URI;

if (!MONGO_URI) {
  throw new Error('Please define the MONGO_URI environment variable');
}

/**
 * Global is used here to maintain a cached connection across hot reloads
 * in development. This prevents connections growing exponentially
 * during API Route usage.
 */
let cached = global.mongoose;

if (!cached) {
  cached = global.mongoose = { conn: null, promise: null };
}

async function connectDb() {
  if (cached.conn && cached.conn?._readyState === 1) {
    return cached.conn;
  }

  const disconnected = cached.conn && cached.conn?._readyState !== 1;
  if (!cached.promise || disconnected) {
    const opts = {
      useNewUrlParser: true,
      useUnifiedTopology: true,
      bufferCommands: false,
      // bufferMaxEntries: 0,
      // useFindAndModify: true,
      // useCreateIndex: true
    };

    mongoose.set('strictQuery', true);
    cached.promise = mongoose.connect(MONGO_URI, opts).then((mongoose) => {
      return mongoose;
    });
  }
  cached.conn = await cached.promise;
  return cached.conn;
}

module.exports = connectDb;

	require('dotenv').config();
	const mongoose = require('mongoose');
	const MONGO_URI = process.env.MONGO_URI;

	if (!MONGO_URI) {
	throw new Error('Please define the MONGO_URI environment variable');
	}

	/**
	* Global is used here to maintain a cached connection across hot reloads
	* in development. This prevents connections growing exponentially
	* during API Route usage.
	*/
	let cached = global.mongoose;

	if (!cached) {
	cached = global.mongoose = { conn: null, promise: null };
	}

	async function connectDb() {
	if (cached.conn && cached.conn?._readyState === 1) {
	return cached.conn;
	}

	const disconnected = cached.conn && cached.conn?._readyState !== 1;
	if (!cached.promise \|\| disconnected) {
	const opts = {
	useNewUrlParser: true,
	useUnifiedTopology: true,
	bufferCommands: false,
	// bufferMaxEntries: 0,
	// useFindAndModify: true,
	// useCreateIndex: true
	};

	mongoose.set('strictQuery', true);
	cached.promise = mongoose.connect(MONGO_URI, opts).then((mongoose) => {
	return mongoose;
	});
	}
	cached.conn = await cached.promise;
	return cached.conn;
	}

	module.exports = connectDb;