Mongoose and multiple database in single node.js project

by

According to the fine manual, createConnection() can be used to connect to multiple databases.

However, you need to create separate models for each connection/database:

var conn      = mongoose.createConnection('mongodb://localhost/testA');
var conn2     = mongoose.createConnection('mongodb://localhost/testB');

// stored in 'testA' database
var ModelA    = conn.model('Model', new mongoose.Schema({
  title : { type : String, default : 'model in testA database' }
}));

// stored in 'testB' database
var ModelB    = conn2.model('Model', new mongoose.Schema({
  title : { type : String, default : 'model in testB database' }
}));

I’m pretty sure that you can share the schema between them, but you have to check to make sure.

More Related Contents:

  1. What is the difference between id and _id in mongoose?
  2. Updating a Nested Array with MongoDB
  3. MongoDB, remove object from array
  4. How do I update/upsert a document in Mongoose?
  5. Mongoose find/update subdocument
  6. Mongoose, Select a specific field with find
  7. How to sort in mongoose?
  8. Mongoose difference between .save() and using update()
  9. Bulk upsert in MongoDB using mongoose
  10. UnhandledPromiseRejectionWarning: MongooseServerSelectionError
  11. Mongoose subdocuments vs nested schema
  12. Why is an _id with ObjectID added to when using MongoDB’s $push to add new object to an array?
  13. How to set _id to db document in Mongoose?
  14. What is a TransientTransactionError in Mongoose (or MongoDB)?
  15. Mongoose.js: Find user by username LIKE value
  16. Server Discovery And Monitoring engine is deprecated
  17. Mongoose Not Creating Indexes
  18. is there a mongoose connect error callback
  19. MongooseServerSelectionError: connect ECONNREFUSED ::1:27017
  20. Node.js mongodb driver async/await queries
  21. Find after populate mongoose
  22. JavaScript NoSQL Injection prevention in MongoDB
  23. Group by Date with Local Time Zone in MongoDB
  24. MongooseError: Model.findOne() no longer accepts a callback at Function
  25. Mongoose find() not returning result
  26. What is this JavaScript “require”?
  27. What is the right way to make a synchronous MongoDB query in Node.js?
  28. Mongoose: Find, modify, save
  29. Mongoose stopped accepting callbacks for some of its functions
  30. Create unique autoincrement field with mongoose [duplicate]

Leave a Comment