How to use the now function from mongoose

mongoose.now is a static method that returns the current time according to the MongoDB server's clock.

How does mongoose.now work?

mongoose.now is a static method provided by the Mongoose library for Node.js that returns the current time according to the MongoDB server's clock. When called, mongoose.now sends a command to the MongoDB server to retrieve the current time, and then returns the result as a Date object. The MongoDB server stores all dates in UTC time, so the value returned by mongoose.now is also in UTC. This can be important when working with data that is stored across multiple time zones. It's worth noting that mongoose.now is a static method, meaning that it can be called directly on the Date object, without requiring an instance of a Mongoose model. This makes it useful for creating default values for timestamps in Mongoose schema definitions, as well as for any other use cases where the current time is needed in a Mongoose application.

Ai Example

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const mongoose = require("mongoose");

const userSchema = new mongoose.Schema({
  name: String,
  createdAt: {
    type: Date,
    default: mongoose.now, // Use mongoose.now to set the default value to the current time
  },
});

const User = mongoose.model("User", userSchema);

// Create a new user and save it to the database
const newUser = new User({
  name: "John Doe",
});

newUser.save((err, savedUser) => {
  if (err) {
    console.error(err);
  } else {
    console.log(savedUser);
  }
});

In this example, we define a Mongoose schema for a User document, which includes a createdAt field of type Date. We set the default value of the createdAt field to mongoose.now, which is a reference to the now static method provided by Mongoose. When we create a new User document and save it to the database, Mongoose automatically sets the createdAt field to the current time using the mongoose.now method. This ensures that the createdAt value is always accurate and up-to-date. Note that mongoose.now can also be used outside of schema definitions, wherever the current time is needed in a Mongoose application.