HTTPErrorHandler retruns an error handler that can be used in echo to overwrite the default Echo error handler.

New creates an echo server instance with the given logger, CORS middleware if CORSOrigins was supplied and optionally a timeout setting that is applied for read and write.

NewValidator creates new instance of the go-playground/validator.

Logger is a wrapper for the logrus fieldlogger that fulfills the echo logger interface.

Validator points to 3rd party validator package (library) which actually does the real validation.