Struct cedar_policy_core::entities::ContextJsonParser

pub struct ContextJsonParser<'e, 's, S: ContextSchema = NullContextSchema> { /* private fields */ }

Struct used to parse context from JSON.

Implementations

impl<'e, 's, S: ContextSchema> ContextJsonParser<'e, 's, S>

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

Create a new ContextJsonParser.

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 Context 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.

pub fn from_json_str( &self, json: &str ) -> Result<Context, JsonDeserializationError>

Parse context JSON (in &str form) into a Context object

pub fn from_json_value( &self, json: Value ) -> Result<Context, JsonDeserializationError>

Parse context JSON (in serde_json::Value form) into a Context object

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

Parse context JSON (in std::io::Read form) into a Context object

Trait Implementations

impl<'e, 's, S: Clone + ContextSchema> Clone for ContextJsonParser<'e, 's, S>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'e, 's, S: Debug + ContextSchema> Debug for ContextJsonParser<'e, 's, S>

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

Formats the value using the given formatter.