Expand description
Interface for accessing the storage from within the runtime.
Structs
Provides implementations for the extern host functions.
Functions
Append the encoded
value to the storage item at key.Always returns
None. This function exists for compatibility reasons.Clear the storage of the given
key and its value.Clear the storage of each key-value pair where the key starts with the given
prefix.Commit the last transaction started by
start_transaction.Check whether the given
key exists in storage.Returns the data for
key in the storage or None if the key can not be found.Get the next key in storage after the given one in lexicographic order.
Get
key from storage, placing the value into value_out and return the number of
bytes that the entry in storage has beyond the offset or None if the storage entry
doesn’t exist at all.
If value_out length is smaller than the returned length, only value_out length bytes
are copied into value_out.Rollback the last transaction started by
start_transaction.“Commit” all existing operations and compute the resulting storage root.
Set
key to value in the storage.Start a new nested transaction.