{ "HRANDFIELD": { "summary": "Returns one or more random fields from a hash.", "complexity": "O(N) where N is the number of fields returned", "group": "hash", "since": "6.2.0", "arity": -2, "function": "hrandfieldCommand", "command_flags": [ "READONLY" ], "acl_categories": [ "HASH" ], "command_tips": [ "NONDETERMINISTIC_OUTPUT" ], "key_specs": [ { "flags": [ "RO", "ACCESS" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "reply_schema": { "anyOf": [ { "description": "Key doesn't exist", "type": "null" }, { "description": "A single random field. Returned in case `COUNT` was not used.", "type": "string" }, { "description": "A list of fields. Returned in case `COUNT` was used.", "type": "array", "items": { "type": "string" } }, { "description": "Fields and their values. Returned in case `COUNT` and `WITHVALUES` were used. In RESP2 this is returned as a flat array.", "type": "array", "items": { "type": "array", "minItems": 2, "maxItems": 2, "items": [ { "description": "Field", "type": "string" }, { "description": "Value", "type": "string" } ] } } ] }, "arguments": [ { "name": "key", "type": "key", "key_spec_index": 0 }, { "name": "options", "type": "block", "optional": true, "arguments": [ { "name": "count", "type": "integer" }, { "name": "withvalues", "token": "WITHVALUES", "type": "pure-token", "optional": true } ] } ] } }