fix: update GetPost API, fixed get-post, download-post commands

Closes #198, #180

ktoolbox/api/posts/get_post.py

@@ -1,3 +1,5 @@
+from pydantic import BaseModel
+
 from ktoolbox.api import BaseAPI, APIRet
 from ktoolbox.api.model import Post
 
@@ -8,11 +10,11 @@ class GetPost(BaseAPI):
     path = "/{service}/user/{creator_id}/post/{post_id}"
     method = "get"
 
-    class Response(Post):
-        ...
+    class Response(BaseModel):
+        post: Post
 
     @classmethod
-    async def __call__(cls, service: str, creator_id: str, post_id: str) -> APIRet[Post]:
+    async def __call__(cls, service: str, creator_id: str, post_id: str) -> APIRet[Response]:
         """
         Get a specific post
 

ktoolbox/cli.py

@@ -122,7 +122,7 @@ async def get_post(service: str, creator_id: str, post_id: str, *, dump: Path =
                     await f.write(
                         ret.data.json(indent=config.json_dump_indent)
                     )
-            return ret.data
+            return ret.data.post
         else:
             return ret.message
 
@@ -187,9 +187,9 @@ async def download_post(
             post_id=post_id
         )
         if ret:
-            post_path = path / generate_post_path_name(ret.data)
+            post_path = path / generate_post_path_name(ret.data.post)
             job_list = await create_job_from_post(
-                post=ret.data,
+                post=ret.data.post,
                 post_path=post_path,
                 dump_post_data=dump_post_data
             )