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NodeJS & Databases

NodeJS a JS runtime that runs on server, on server we connect to any databases like MySQL, MongoDB, SQlite3 and so on.

  • For any type Database connection we use their database driver to connect them. every database has own specific driver to connect.
  • A database driver provided by Database developers, called native driver.

ORM (Object Relational Model)​

  • Generally in development we use databases ORM (Object relational Modal) library to map Real object to Database

NodeJS with MongoDB​

we can connect mongodb using its native driver or mongose (third party library)

Let's install mongoose

npm install mongoose
function connectDB() {
  try {
    const connect = mongoose.connect(mongo_uri);
  } catch (err) {
    console.log(err);
  }
}