document key based user data

openapi-def.yaml

@@ -126,6 +126,29 @@ paths:
         default:
           $ref: '#/components/responses/Default'
   /api/users/@me/data:
+    get:
+      operationId: self-list-data
+      summary: List user data keys
+      tags:
+        - Users
+      security:
+        - bearer: []
+      parameters:
+        - $ref: '#/components/parameters/UserDataKey'
+      responses:
+        200:
+          description: Ok
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  type: string
+        401:
+          $ref: '#/components/responses/Unauthorized'
+        default:
+          $ref: '#/components/responses/Default'
+  /api/users/@me/data/{key}:
     get:
       operationId: self-get-data
       summary: User data
@@ -133,6 +156,8 @@ paths:
         - Users
       security:
         - bearer: []
+      parameters:
+        - $ref: '#/components/parameters/UserDataKey'
       responses:
         200:
           description: Ok
@@ -150,6 +175,8 @@ paths:
         - Users
       security:
         - bearer: []
+      parameters:
+        - $ref: '#/components/parameters/UserDataKey'
       requestBody:
         content:
           application/json:
@@ -545,6 +572,13 @@ components:
       schema:
         type: string
         format: uuid
+    UserDataKey:
+      name: key
+      in: path
+      required: true
+      schema:
+        type: string
+        maxLength: 64
     ChatId:
       name: chatId
       in: path