Errors

The HTTP standards also include a series of error numbers. These are well-defined and understood (everybody must have come across a “404: resource not found” error while browsing the Internet). The benefit of the numbered errors is that they are easy to understand and cope with, and because they come back with the header, they are easy to identify without a heavy overhead. For completeness, CouchDB also includes a JSON error string for many of the operations so that you can get a CouchDB-specific error.

A sample of the main error codes are listed below. This is not an exhaustive list, but merely designed to show the main errors that you might get back: