expected-errors

A collection of expected errors that can be raised and middleware for handling/responding to them.

Version 0.7.0

• Added #isExternalServiceError.
• Renamed #handleExpectedError to #handleHttpError as it is a better explanation of what it does.
• Added #createExternalServiceError.
• Exported #createHttpError for creating generic expected http errors.

Version 0.6.0

• #createUnauthorizedError now accepts an original error parameter that will be accessible by calling cause() on the error returned from #createUnauthorizedError.
• Unauthorized errors now have the name UnauthorizedError.
• Unauthorized errors now have the message Unauthorized Error.

Version 0.5.0

• handleExpectedError now only sends a response if the headers have not been sent. This is to cater for the use case of an error being raised by a longer running operation that runs on the server but the server has already told the client that everything is ok to aid with performance.

Version 0.4.0

• Updated createNotFoundError to take an error object parameter that will become the cause of not found error returned.

Version 0.3.0

• Added createConflictError.
• Added isConflictError.

Version 0.2.4

• Added the verror dependancy back as it turns out the way verror handles messages is very handy for logging (it concatenates it's causes).
• Added a name property of ServiceUnavailableError to service unavailable errors.
• Added a code property of 503 to service unavailable errors.

Version 0.2.3

• Added the standard bunyan serializers when creating the log object so that error logging provides details, as a side effect req and res objects will also be serialized as per the bunyan standard serializers: https://github.com/trentm/node-bunyan#standard-serializers

Version 0.2.2

• Changed the interface of createServiceUnavailableError to just take a cause
  as the thinking is the type of error is descriptive enough. That is any expected error should just be a type wrapper for a cause. Internally it is possible to set a message suce as Service Unavailable Error.
• Removed the reliance on verror as the only thing we were using for was the cause function.
• These changes have only been applied to createSericeUnavailableError for now to see how they sit in the context of an application.

Version 0.2.1

• Removed the usage of rewire as it was not needed and made the tests harder to read.

Version 0.2.0

• Added a 503 Service unavailable error.
• Added logError error middleware.

Version 0.1.0

• Added a 404 Not Found error.
• Added a 401 Unauthorized error.
• Added the middleware function handleExpectedError to deal with the above errors.