@jeffreznik/error

This is a collection of error classes that subclass from the builtin Error class. Each subclass has type-specific properties.

Installation

npm install @jeffreznik/error --save

Classes

GeneralError extends Error

Base error class which provides common functionality for typed error subclasses.

Constructor

const error = new GeneralError(message[, errorBelow])

Creates a new GeneralError with message set. If errorBelow is provided, its message stack will be appended to message.

Properties

• name (String) - returns the name of the class (e.g. 'GeneralError', 'HttpError', etc.)
• message (String) - returns the error message
• errorBelow (Error) - returns the error passed to the constructor when the object was created

Methods

error.log(message)

Print the entire error message stack, with mesasge prepended to the beginning.

Returns: nothing

error.wrap(message)

Prepend another error message to the beginning of the message stack. Useful for adding additional error detail without having to create a new object.

Returns: itself

AuthorizationError extends GeneralError

Constructor

const error = new AuthorizationError(message, errorBelow)

Additional Properties

none

HttpError extends GeneralError

Constructor

const error = new HttpError(message, errorBelow)

Note: the constructor expects the additional properties below to be set in errorBelow for them to be set on itself.

Additional Properties

• data (Object) - response that was provided by the server
• headers (Object) - response headers
• status (Number) - HTTP status code
• statusText (String) - HTTP status message

NotFoundError extends GeneralError

Constructor

const error = new NotFoundError(message, errorBelow)

Additional Properties

none

ValidationError extends GeneralError

Constructor

const error = new ValidationError(message, errorBelow, attributeErrors)

Additional Properties

• attributeErrors (Object) - key-value pairs of offending attributes and their error messages