Interfaces and Responses

Use the below blueprint that describes the structure of data your app receives when an onboarding step is completed.

Responses

Understanding how the Step Function returns data is crucial, especially for Synchronous Actions where the response directly influences the merchant's operation. This guide details the structure, behavior, and utility tools for handling function responses.

Every Step Function is expected to return an object conforming to the Response contract.
While the structure is required for all functions, its effect on the platform varies significantly based on the execution type.

Field	Type	Required	Description
`success`	boolean	Yes	Indicates if your function logic completed successfully.
`data`	object	No	A payload containing data to be returned or applied to the Salla operation (used primarily for Synchronous Actions).
`error`	string	No	A human-readable error message. Required if `success` is `false` for Synchronous Actions.
`status`	number	No	(Optional) An HTTP status code (e.g., `200`, `400`). Set via the Response utility class.
`message`	string	No	(Optional) An informative message. Set via the Response utility class.

The Response utility class provides a structured way to create responses. It's particularly useful for Customer Events and some Merchant Events that require more detailed response handling.

Success Response

Error Response

This response confirms that the onboarding step was completed successfully and allows the merchant to continue.

These onboarding handler functions act as validation and processing checkpoints. Returning Resp.success() allows the onboarding process to continue, while returning Resp.error() stops progression and displays validation feedback to the merchant.

Response Utility Methods

Method	Description	Required	Default
`Resp.success()`	Create a successful response	Yes (for success)	-
`Resp.error()`	Create an error response	Yes (for errors)	-

When to Use Response Utility vs Plain Object

Scenario	Recommended Approach	Reason
Customer Events	Response utility	Provides structured responses for tracking and analytics
Synchronous Actions	Plain object	Simpler and faster (performance critical)
Merchant Events (Simple)	Plain object	Straightforward with less overhead
Merchant Events (Complex)	Response utility	Better error handling and status control
Error Handling	Either (Response utility recommended)	Response utility provides better error structure

Interfaces and Responses

Responses#

Response Utility Methods#

When to Use Response Utility vs Plain Object#

Responses

Response Utility Methods

When to Use Response Utility vs Plain Object