Struct cedar_policy_core::entities::EntityJsonParser

pub struct EntityJsonParser<'e, S: Schema = NoEntitiesSchema> { /* private fields */ }

Struct used to parse entities from JSON.

Implementations

impl<'e, S: Schema> EntityJsonParser<'e, S>

pub fn new( schema: Option<S>, extensions: Extensions<'e>, tc_computation: TCComputation, ) -> Self

Create a new EntityJsonParser.

If a schema is present, this will inform the parsing: for instance, it will allow __entity and __extn escapes to be implicit. It will also ensure that the produced Entities fully conforms to the schema – for instance, it will error if attributes have the wrong types (e.g., string instead of integer), or if required attributes are missing or superfluous attributes are provided.

If you pass TCComputation::AssumeAlreadyComputed, then the caller is responsible for ensuring that TC holds before calling this method.

pub fn from_json_str(&self, json: &str) -> Result<Entities, EntitiesError>

Parse an entities JSON file (in &str form) into an Entities object

pub fn from_json_value(&self, json: Value) -> Result<Entities, EntitiesError>

Parse an entities JSON file (in serde_json::Value form) into an Entities object

pub fn from_json_file(&self, json: impl Read) -> Result<Entities, EntitiesError>

Parse an entities JSON file (in std::io::Read form) into an Entities object

Trait Implementations

impl<'e, S: Clone + Schema> Clone for EntityJsonParser<'e, S>

fn clone(&self) -> EntityJsonParser<'e, S>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'e, S: Debug + Schema> Debug for EntityJsonParser<'e, S>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.