Trait secret_cosmwasm_std::Storage
source · pub trait Storage {
// Required methods
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§
sourcefn get(&self, key: &[u8]) -> Option<Vec<u8>>
fn get(&self, key: &[u8]) -> Option<Vec<u8>>
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.