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 provided, this will inform the parsing: for instance, it will allow __entity and __extn escapes to be implicit, and it will error if attributes have the wrong types (e.g., string instead of integer). That does not mean it will fully enforce that the produced Entities conform to the schema – for instance, as of this writing, it will not error for unexpected (additional) record attributes.

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.