Using Computed Fields in Embeddables

Computed Fields are a core feature of Embeddables, allowing you to calculate new values based on existing data.

They take in inputs, from the User Data JSON object, and return an output.

This output is then part of the User Data JSON object, and can be used elsewhere in the Embeddable. For example, it can be displayed in a text component, used in a condition, or even used as an input for another Computed Field.

Computed Fields have access to the User Data JSON object, a series of helper functions like setUserData and triggerAction, and extra context about how the Computed Field was triggered.

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How to create a Computed Field

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Example Computed Fields

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Full Name

Here’s an example of a Computed Field called full_name, that takes the user’s first and last name and concatenates them together.

function result(userData, helperFunctions, triggerContext) {
  // Get the user's first and last name from the User Data JSON object,
  // and join them together with a space in the middle
  return `${userData.first_name} ${userData.last_name}`;
}

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BMI

Here’s an example of a Computed Field called bmi, that takes the user’s weight and height and calculates their BMI.

function result(userData, helperFunctions, triggerContext) {
  // Get the user's weight and height from the User Data JSON object
  // In this example, we're assuming the weight is in kilograms and the height is in centimeters
  const weight = userData.weight;
  const height = userData.height;
  const bmi = weight / (height * height);

  // Return the BMI value
  return bmi;
}