Class KV

Retrieve a list of keys in the database

Each list operation must specify a selector which is used to specify the range of keys to return. The selector can either be a prefix selector, or a range selector:

• A prefix selector selects all keys that start with the given prefix of key parts. For example, the selector ["users"] will select all keys that start with the prefix ["users"], such as ["users", "alice"] and ["users", "bob"]. Note that you can not partially match a key part, so the selector ["users", "a"] will not match the key ["users", "alice"]. A prefix selector may specify a start key that is used to skip over keys that are lexicographically less than the start key.

• A range selector selects all keys that are lexicographically between the given start and end keys (including the start, and excluding the end). For example, the selector ["users", "a"], ["users", "n"] will select all keys that start with the prefix ["users"] and have a second key part that is lexicographically between a and n, such as ["users", "alice"], ["users", "bob"], and ["users", "mike"], but not ["users", "noa"] or ["users", "zoe"].

Set a value in the store