restloom/docs/errors.md

Errors

Every error is a JSON object with a stable code, and a message naming the part of the request at fault when there is one:

{ "error": "unknown_column", "message": "password_hash" }

A message never contains SQL or database text.

The request

Code	Status	Means
not_found	404	no such resource, or no such row, or a row you may not see
method_not_allowed	405	the resource does not allow this method, or a procedure was called with another method than its own
unknown_column	400	the column does not exist or is hidden
unknown_relation	400	the relation does not exist
unknown_operator	400	the operator is not one of eq neq gt gte lt lte in like ilike match imatch is ov cs cd
bad_operator	400	the operator does not apply to the column's type
invalid_value	400	the value does not fit the column's type
bad_filter	400	a filter is not operator.value
bad_logic	400	an or or and is not (term,term)
bad_list	400	an in list is malformed, empty, or too long
bad_name	400	a dotted or quoted name is malformed
bad_syntax	400	unbalanced quotes or parentheses
bad_select	400	a select item is malformed
duplicate_select	400	a name is selected twice
unknown_aggregate	400	not one of count sum avg min max
bad_aggregate	400	the aggregate does not apply to the column's type
aggregate_with_embed	400	a grouped read cannot embed relations
aggregate_in_embed	400	an embed cannot hold aggregates
bad_order	400	an order term names a to-many column, an unorderable type, or, in a grouped read, an unselected column
not_embedded	400	relation.order, .limit or .offset names a relation that is not embedded
too_deep	400	a path or an embed walks more relations than limits.depth
too_many_filters	400	more filters than limits.filters
bad_limit, bad_offset	400	not a whole number
limit_exceeded	400	a limit over limits.maxPage
bad_count	400	count is not exact or estimated
unsupported	400	the database cannot do what was asked, e.g. a regular expression on SQLite

Writes and procedures

Code	Status	Means
bad_body	400	the body is not an object or a list of objects within limits.bodyRows
body_too_large	413	the body is over the adapter's size limit
mixed_columns	400	the rows of a body name different columns
not_writable	400	the column cannot be written by this method
filter_required	400	a bulk update or delete has no filter
out_of_scope	403	a value contradicts the host's scope
unknown_argument	400	the procedure's function takes no argument of that name
missing_argument	400	an argument without a default is missing
bad_argument	400	a GET procedure's argument is given twice

The database

Code	Status	Means
duplicate	409	a unique constraint refused the row
reference_missing	409	a foreign key points to a row that does not exist
still_referenced	409	the row is still referenced by another
value_required	400	a required column has no value
value_rejected	400	a check constraint refused the value
forbidden	403	the database refused the session's role
timeout	503	the statement ran past limits.timeoutMs
internal	500	anything else; your onError hook receives it