API Reference - Event Object in Transformations

The event object in transformation carries the properties and metadata of the event as populated by source.

For reference, we will assume the following event for examples in this doc

{
    "event_name":"users",
    "properties":{
	"id":56712434,
	"first_name":"John",
	"last_name":"Doe",
	"age":42,
	"is_active":true,
	"last_logged_in":1507893200464
    }
}

There are two main components of the object:

• event_name : The name of the event type. This value is visible in the Schema Mapper for you to map it to a destination table.
• properties : Properties of the event in form of key-value pairs (dict). These properties are populated by the source. Properties of a given event can be manipulated in Transformations Code to add, edit or delete fields in any way you want. 

Here is complete API Reference to the event object.

Event(string: eventname, dict: properties) - Event
Constructs a new event object with given name and properties

getEventName() - string
returns the event name of the event. i.e. users

getProperties() - dict
returns a dict of all the properties of the event

isString(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a string

isNumber(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a number

isBoolean(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a boolean

isTimestamp(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a timestamp/datetime

isDate(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a date. Please note that for datetime values it will return false

isTime(string: fieldname) - boolean
returns true if the value of the specified field name is present and is a time value. Please note that for datetime values it will return false