EJSON is an extension of JSON syntax that supports Date and Binary types.

Install EJSON

To install EJSON package, we need to add it from the command prompt window.

C:UsersusernameDesktopmeteorApp>meteor add ejson

Date Example

We can deserialize the date using the parse method.

if (Meteor.isClient) {
   var myEjsonDate = ''{"$date": 1455029631493}'';
   var myDate = EJSON.parse(myEjsonDate);
   console.log(myDate);
}

The console will log the correct date value.

Binary Example

The same can be applied to binary types.

if (Meteor.isClient) {
   var myEjsonBinary = ''{"$binary": "c3VyZS4="}'';
   var myBinary = EJSON.parse(myEjsonBinary);
   console.log(myBinary);
}

You can see that the console is logging new deserialized value.

Stringify

We can serialize an object using the stringify method. This is the reversed process from the example above.

if (Meteor.isClient) {

   var myObject = {
      myDate : new Date(),
      myBinary : new Uint8Array([115, 117, 114, 101, 46])
   }

   var myEjosnData = EJSON.stringify(myObject);
   console.log(myEjosnData);
}

We can see our new values in the console.