Module json

This module contains functionality for serializing and deserializing Cedar values, entities, Contexts, etc to and from JSON.

Modules

• err
  Error types for JSON serialization and deserialization

Structs

• AllEntitiesNoAttrsSchema
  Simple type that implements Schema by allowing entities of all types to exist, and allowing all actions to exist, but expecting no attributes or parents on any entity (action or otherwise).
• AttributeType
  Attribute type structure used in SchemaType
• ContextJsonParser
  Struct used to parse context from JSON.
• EntityJson
  Serde JSON format for a single entity
• EntityJsonParser
  Struct used to parse entities from JSON.
• FnAndArg
  Structure expected by the __extn escape
• JsonRecord
  Structure representing a Cedar record in JSON
• NoEntitiesSchema
  Simple type that implements Schema by expecting no entities to exist at all
• NoStaticContext
  A DeserializationContext that always returns None. This is the default behaviour,
• NullContextSchema
  Simple type that implements ContextSchema by expecting an empty context
• NullEntityTypeDescription
  Simple type that implements EntityTypeDescription by expecting no attributes, tags, or parents to exist
• TypeAndId
  Structure expected by the __entity escape
• ValueParser
  Struct used to parse Cedar values from JSON.

Enums

• CedarValueJson
  The canonical JSON representation of a Cedar value. Many Cedar values have a natural one-to-one mapping to and from JSON values. Cedar values of some types, like entity references or extension values, cannot easily be represented in JSON and thus are represented using the __entity, or __extn escapes.
• ContextJsonDeserializationError
  Errors possible when deserializing request context from JSON
• EntityUidJson
  Serde JSON format for Cedar values where we know we’re expecting an entity reference
• ExtnValueJson
  Serde JSON format for Cedar values where we know we’re expecting an extension value
• SchemaType
  Possible types that schema-based parsing can expect for Cedar values.

Traits

• ContextSchema
  Trait for schemas that can inform the parsing of Context data
• DeserializationContext
  A (optional) static context for deserialization of entity uids This is useful when, for plumbing reasons, we can’t get the appopriate values into the dynamic context. Primary use case is in the DeserializeAs trait.
• EntityTypeDescription
  Trait for a schema’s description of an individual entity type
• Schema
  Trait for Schemas that can inform the parsing of Entity JSON data