Chronicle.Discovery.EventSchemaShape (cratis_chronicle v3.16.1)

Extracts a canonical, coarse shape from an event's JSON schema for identity comparison.

A faithful port of the .NET client's EventSchemaShape normalization (Source/Clients/DotNET/Discovery/EventSchemaShape.cs): property names, nesting and primitive type categories, with $ref/anyOf/oneOf resolved and nullability stripped — so renaming a property is a shape change but reordering keys, widening integer to number, or ["string", "null"] versus "string" is not. Used by Chronicle.Discovery.DriftDetector to notice a generation whose struct changed without a bumped :generation.

Summary

Functions

of(schema)

Normalizes a nonempty JSON schema string for identity comparison.

Functions

of(schema)

@spec of(String.t()) :: map() | nil

Normalizes a nonempty JSON schema string for identity comparison.

Returns the canonical shape as a normalized map (comparable with ==), or nil when the schema isn't a JSON object, has no properties, or normalization is unsafe (an unresolved or cyclic $ref).