1 files changed, 86 insertions, 0 deletions
diff --git a/src/commands/zrank.json b/src/commands/zrank.json
new file mode 100644
index 0000000..f5f427c
--- /dev/null
+++ b/src/commands/zrank.json
@@ -0,0 +1,86 @@
+{
+    "ZRANK": {
+        "summary": "Returns the index of a member in a sorted set ordered by ascending scores.",
+        "complexity": "O(log(N))",
+        "group": "sorted_set",
+        "since": "2.0.0",
+        "arity": -3,
+        "function": "zrankCommand",
+        "history": [
+            [
+                "7.2.0",
+                "Added the optional `WITHSCORE` argument."
+            ]
+        ],
+        "command_flags": [
+            "READONLY",
+            "FAST"
+        ],
+        "acl_categories": [
+            "SORTEDSET"
+        ],
+        "key_specs": [
+            {
+                "flags": [
+                    "RO",
+                    "ACCESS"
+                ],
+                "begin_search": {
+                    "index": {
+                        "pos": 1
+                    }
+                },
+                "find_keys": {
+                    "range": {
+                        "lastkey": 0,
+                        "step": 1,
+                        "limit": 0
+                    }
+                }
+            }
+        ],
+        "reply_schema": {
+            "oneOf": [
+                {
+                    "type": "null",
+                    "description": "Key does not exist or the member does not exist in the sorted set."
+                },
+                {
+                    "type": "integer",
+                    "description": "The rank of the member when 'WITHSCORE' is not used."
+                },
+                {
+                    "type": "array",
+                    "description": "The rank and score of the member when 'WITHSCORE' is used.",
+                    "minItems": 2,
+                    "maxItems": 2,
+                    "items": [
+                        {
+                            "type": "integer"
+                        },
+                        {
+                            "type": "number"
+                        }
+                    ]
+                }
+            ]
+        },
+        "arguments": [
+            {
+                "name": "key",
+                "type": "key",
+                "key_spec_index": 0
+            },
+            {
+                "name": "member",
+                "type": "string"
+            },
+            {
+                "name": "withscore",
+                "token": "WITHSCORE",
+                "type": "pure-token",
+                "optional": true
+            }
+        ]
+    }
+}