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Nov 26, 2016 · 38. My understanding on the official documentation is that generally when there is only one connection mongoose.connect () is use, whereas if there is multiple instance of connection mongoose.createConnection () is used. Yes. To be exact, .connect() creates actually a pool of sockets/connections (defined in poolSize in the connection settings ...
1. Mongoose's default connection logic is deprecated as of 4.11.0. It is recommended to use the new connection logic: useMongoClient option. native promise library. Here is the example from npm module: mongoose-connect-db. // Connection options. const defaultOptions = {.
Dec 19, 2020 · I've been working with Mongoose/MongoDB and I realized I don't quite understand how the connection between mongoose and my MongoDB database persists. Let's say I have Node application with a server...
Apr 13, 2017 · You should: not mix options with connection string (if done so) make sure your IP you are running on is whitelisted and your network allows connections to Atlas. make sure the user has sufficient permissions. use the connection string as is provided by atlas and just provide it to. mongoose.connect(uri);
Nov 29, 2021 · I just started learning to use node JS and I'm having difficulty connecting mongoose to mongodb using community version of mongdb locally. const app = express(); app.use(bodyParser.json({extended: ...
Aug 25, 2021 · You can change your mongoose.connect function to: mongoose.connect(dbUri, { useNewUrlParser: true, useUnifiedTopology: true, } as ConnectOptions) This is the simplest way
Set the server.reconnectTries option to increase the number of times mongoose will try to reconnect. For example, you can tell mongoose to never stop trying to reconnect like this: mongoose.connect (uri, { server: { reconnectTries: Number.MAX_VALUE } }); See connection docs and server options defaults for details.
Aug 9, 2018 · throw new MongooseError('The `uri` parameter to `openUri()` must be a ' + ^ MongooseError: The `uri` parameter to `openUri()` must be a string, got "undefined". Make sure the first parameter to `mongoose.connect()` or `mongoose.createConnection()`is a string.
Since the mongoose module exports a singleton object, you don't have to connect in your test.js to check the state of the connection: // test.js require ('./app.js'); // which executes 'mongoose.connect ()' var mongoose = require ('mongoose'); console.log (mongoose.connection.readyState); ready states being:
0. There are various methods to pass options for .connect. You can do as above or also use: mongoose.set('useNewUrlParser', false); mongoose.set('useUnifiedTopology', false); after your connect string w/o options.
