Trait cosmwasm_std::Storage [−][src]
pub trait Storage { fn get(&self, key: &[u8]) -> Option<Vec<u8>>; fn set(&mut self, key: &[u8], value: &[u8]); fn remove(&mut self, key: &[u8]); }
Expand description
Storage provides read and write access to a persistent storage.
If you only want to provide read access, provide &Storage
Required methods
Returns None when key does not exist.
Returns Some(Vec
Note: Support for differentiating between a non-existent key and a key with empty value is not great yet and might not be possible in all backends. But we’re trying to get there.