Injected State API

Injected state provides a persistent key/value store backed by a Patricia trie. Use it when your computation needs state across runs.

Methods

• read_injected_state_trie_root(label) -> Option<felt252>
• read_key(label, key) -> Option<felt252>
• write_key(label, key, value) -> updated trie root

Source: hdp_cairo/src/injected_state/state.cairo

Example

use hdp_cairo::HDP;
use hdp_cairo::injected_state::state::InjectedStateMemorizerTrait;

let label = 1;
let value = hdp.injected_state.read_key(label, 0x42);