将flask改成fastapi

api/validation.py

@@ -0,0 +1,49 @@
+#
+#  Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+
+import logging
+import sys
+
+
+def python_version_validation():
+    # Check python version
+    required_python_version = (3, 10)
+    if sys.version_info < required_python_version:
+        logging.info(
+            f"Required Python: >= {required_python_version[0]}.{required_python_version[1]}. Current Python version: {sys.version_info[0]}.{sys.version_info[1]}."
+        )
+        sys.exit(1)
+    else:
+        logging.info(f"Python version: {sys.version_info[0]}.{sys.version_info[1]}")
+
+
+python_version_validation()
+
+
+# Download nltk data
+def download_nltk_data():
+    import nltk
+    nltk.download('wordnet', halt_on_error=False, quiet=True)
+    nltk.download('punkt_tab', halt_on_error=False, quiet=True)
+
+
+try:
+    from multiprocessing import Pool
+    pool = Pool(processes=1)
+    thread = pool.apply_async(download_nltk_data)
+    binary = thread.get(timeout=60)
+except Exception:
+    print('\x1b[6;37;41m WARNING \x1b[0m' + "Downloading NLTK data failure.", flush=True)