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5. GraphSchemaNodeType

One selectable node type and the field vocabularies it supports. The three field lists are different sets, so a field appearing in one does not imply the others; fieldValues carries the values of those selectable fields whose value set is closed, and identity states the spellings a caller reads back and writes.

Properties

• name enum required
  The node type name, usable as anchor.nodeType.
  Values: resource, stack
• selectableFields array[string] required
  Field names usable in anchor match.fields predicates for this node type. This is the widest of the three vocabularies.
• projectableFields array[string] required
  Field names usable in return.fields projections, and — for node types that carry a document — in a traverse step’s target.match. Naming a field outside this list returns a 400.
• groupByFields array[string] required
  Field names usable in aggregate.groupBy for this node type. Naming a field outside this list returns a 400. Empty for node types that cannot be aggregated.
• identity string required
  How a node of this type is identified in a response and how a selector names one. For stacks the two spellings differ, and the field lists cannot say so: they name fields, never formats.
• fieldValues map[string]array required
  For the subset of selectableFields whose values are a fixed, closed set defined in code, the values themselves, keyed by field name. Absence from this map means no fixed set is advertised, not that the field has none; where such a field also appears in groupByFields, aggregate on it to discover its values.