diff --git a/src/llmtuner/api/app.py b/src/llmtuner/api/app.py
index 6d3d5afc..6d06d1d0 100644
--- a/src/llmtuner/api/app.py
+++ b/src/llmtuner/api/app.py
@@ -6,7 +6,7 @@ from typing_extensions import Annotated
 
 from ..chat import ChatModel
 from ..extras.misc import torch_gc
-from ..extras.packages import is_fastapi_availble, is_starlette_available, is_uvicorn_available
+from ..extras.packages import is_fastapi_available, is_starlette_available, is_uvicorn_available
 from .chat import (
     create_chat_completion_response,
     create_score_evaluation_response,
@@ -22,7 +22,7 @@ from .protocol import (
 )
 
 
-if is_fastapi_availble():
+if is_fastapi_available():
     from fastapi import Depends, FastAPI, HTTPException, status
     from fastapi.middleware.cors import CORSMiddleware
     from fastapi.security.http import HTTPAuthorizationCredentials, HTTPBearer
diff --git a/src/llmtuner/api/chat.py b/src/llmtuner/api/chat.py
index 2a703877..76ddc88d 100644
--- a/src/llmtuner/api/chat.py
+++ b/src/llmtuner/api/chat.py
@@ -3,7 +3,8 @@ import uuid
 from typing import TYPE_CHECKING, AsyncGenerator, Dict, List, Optional, Tuple
 
 from ..data import Role as DataRole
-from ..extras.packages import is_fastapi_availble
+from ..extras.logging import get_logger
+from ..extras.packages import is_fastapi_available
 from .common import dictify, jsonify
 from .protocol import (
     ChatCompletionMessage,
@@ -20,7 +21,9 @@ from .protocol import (
 )
 
 
-if is_fastapi_availble():
+logger = get_logger(__name__)
+
+if is_fastapi_available():
     from fastapi import HTTPException, status
 
 
@@ -39,6 +42,9 @@ ROLE_MAPPING = {
 
 
 def _process_request(request: "ChatCompletionRequest") -> Tuple[List[Dict[str, str]], str, str]:
+    params = dictify(request)
+    logger.info(f"==== request ====\n{params}")
+
     if len(request.messages) == 0:
         raise HTTPException(status_code=status.HTTP_400_BAD_REQUEST, detail="Invalid length")
 
diff --git a/src/llmtuner/api/common.py b/src/llmtuner/api/common.py
index 5ad9a071..3e95d211 100644
--- a/src/llmtuner/api/common.py
+++ b/src/llmtuner/api/common.py
@@ -6,11 +6,11 @@ if TYPE_CHECKING:
     from pydantic import BaseModel
 
 
-def dictify(data: "BaseModel") -> Dict[str, Any]:
+def dictify(data: "BaseModel", **kwargs) -> Dict[str, Any]:
     try:  # pydantic v2
-        return data.model_dump(exclude_unset=True)
+        return data.model_dump(**kwargs)
     except AttributeError:  # pydantic v1
-        return data.dict(exclude_unset=True)
+        return data.dict(**kwargs)
 
 
 def jsonify(data: "BaseModel") -> str:
diff --git a/src/llmtuner/extras/packages.py b/src/llmtuner/extras/packages.py
index a7317eec..4c9e6492 100644
--- a/src/llmtuner/extras/packages.py
+++ b/src/llmtuner/extras/packages.py
@@ -20,7 +20,7 @@ def _get_package_version(name: str) -> "Version":
         return version.parse("0.0.0")
 
 
-def is_fastapi_availble():
+def is_fastapi_available():
     return _is_package_available("fastapi")