Function hdk::hash::hash_action

pub fn hash_action(input: Action) -> Result<HoloHash<Action>, WasmError>

Hash an Action into an ActionHash.

hash_entry has more of a discussion around different hash types and how they are used within the HDI.

It is strongly recommended to use hash_action to calculate the hash rather than hand rolling an in-wasm solution. Any inconsistencies in serialization or hash handling will result in dangling references to things due to a “corrupt” hash.

Note that usually relevant HDI functions return a ActionHashed or SignedActionHashed which already has associated methods to access the ActionHash of the inner Action. In normal usage it is unlikely to be required to separately hash a Action like this.