Errors

ThingsDB uses the following error codes:

Error	Code	Meaning
cancelled_err	-64	Operation is cancelled before completion.
operation_err	-63	Operation is not valid in the current context.
num_arguments_err	-62	Wrong number of arguments.
type_err	-61	Object of inappropriate type.
value_err	-60	Object has the right type but an inappropriate value.
overflow_err	-59	Integer is too large to fit a 64 bit signed integer.
zero_div_err	-58	Trying a division or modulo by zero.
max_quota_err	-57	Some quota limit is reached.
auth_err	-56	Wrong credentials or a request while the connection is not authenticated.
forbidden_err	-55	You lack the privileges to do the request.
lookup_err	-54	Requested resource not found or index out of range.
bad_data_err	-53	Invalid data, for example an invalid data type used in a query.
syntax_err	-52	Syntax error in the query.
node_err	-51	At least one node has an issue while processing the request.
assert_err	-50	Assertion statement has failed.

Internal errors

Error	Code	Meaning
RESULT_TOO_LARGE	-6	Result size limit is exceeded. See the configuration page to configure this limit.
REQUEST_TIMEOUT	-5	Timeout during this request.
REQUEST_CANCEL	-4	A request is cancelled.
WRITE_UV	-3	Write to stream error.
MEMORY	-2	Memory allocation error.
INTERNAL	-1	General internal error.

Custom errors

The range -127 .. -100 is reserved by ThingsDB for custom error codes although technically this range can be extended from -127 up to -64. See err(..) and alt_raise(..) for more information on how to use custom error codes.