JSend

JSend is a specification for a simple, consistent, and readable JSON response format for HTTP APIs. It was created by Omar Rizwan in 2015 as an alternative to the more complex and less consistent JSON:API specification. JSend aims to provide a standardized way to communicate the success or failure of an API request, along with any relevant data or error messages.

The JSend specification defines three main response types: success, fail, and error. A success response indicates that the request was processed successfully and includes the requested data. A fail response indicates that the request was processed but failed to meet the expected criteria, such as validation errors. An error response indicates that the request could not be processed due to an unexpected condition, such as a server error.

Each JSend response contains a status field, which indicates the type of response (success, fail, or error), and a data field, which contains the relevant data or error messages. The specification also includes optional fields for additional metadata, such as a message or code.

JSend is designed to be simple and easy to use, with a focus on readability and consistency. It is intended to be used in conjunction with other specifications, such as REST or GraphQL, to provide a standardized way to communicate with HTTP APIs.