Struct CascadeResponseParser 

pub struct CascadeResponseParser;

Parser for GraphQL Cascade responses following the Cascade specification v1.1.

Extracts all affected entities from mutation responses to enable entity-level cache invalidation.

Implementations

impl CascadeResponseParser

pub const fn new() -> Self

Create new cascade response parser.

pub fn parse_cascade_response( &self, response: &Value, ) -> Result<CascadeEntities>

Parse cascade data from a GraphQL mutation response.

Arguments

• response - The full GraphQL response containing cascade field

Returns

CascadeEntities with all updated and deleted entities

Examples

use fraiseql_core::cache::CascadeResponseParser;
use serde_json::json;
let parser = CascadeResponseParser::new();
let response = json!({
  "createPost": {
    "cascade": {
      "updated": [
        { "__typename": "User", "id": "uuid-123" }
      ]
    }
  }
});

let entities = parser.parse_cascade_response(&response)?;
assert_eq!(entities.updated.len(), 1);

Errors

Returns FraiseQLError::Validation if the cascade field is present but malformed (e.g., updated or deleted is not an array, or an entity is missing __typename / id).

Trait Implementations

impl Clone for CascadeResponseParser

fn clone(&self) -> CascadeResponseParser

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CascadeResponseParser

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

Formats the value using the given formatter.

impl Default for CascadeResponseParser

fn default() -> Self

Returns the “default value” for a type.