diff --git a/alibabacloud_oss_v2/signer/vectors_v4.py b/alibabacloud_oss_v2/signer/vectors_v4.py
index 89484fe..728cc19 100644
--- a/alibabacloud_oss_v2/signer/vectors_v4.py
+++ b/alibabacloud_oss_v2/signer/vectors_v4.py
@@ -84,8 +84,8 @@ def _auth_header(self, signing_ctx: SigningContext) -> None:
         string_to_sign = self._calc_string_to_sign(
             datetime_now_iso8601, scope, canonical_request)
 
-        print('\ncanonical_request:{}\n'.format(canonical_request))
-        print('string_to_sign:{}\n'.format(string_to_sign))
+        # print('\ncanonical_request:{}\n'.format(canonical_request))
+        # print('string_to_sign:{}\n'.format(string_to_sign))
 
         # signature
         signature = self._calc_signature(
@@ -196,8 +196,8 @@ def _auth_query(self, signing_ctx: SigningContext) -> None:
 
         request.url = request.url + f'&x-oss-signature={quote(signature, safe="")}'
 
-        print('\ncanonical_request:{}\n'.format(canonical_request))
-        print('string_to_sign:{}\n'.format(string_to_sign))
+        # print('\ncanonical_request:{}\n'.format(canonical_request))
+        # print('string_to_sign:{}\n'.format(string_to_sign))
         signing_ctx.string_to_sign = string_to_sign
         signing_ctx.signing_time = datetime_now
         signing_ctx.expiration_time = expiration_time
diff --git a/alibabacloud_oss_v2/vectors/client.py b/alibabacloud_oss_v2/vectors/client.py
index f999503..af20e7d 100644
--- a/alibabacloud_oss_v2/vectors/client.py
+++ b/alibabacloud_oss_v2/vectors/client.py
@@ -13,7 +13,7 @@
 from . import endpoints
 from .paginator import (
     ListVectorBucketsPaginator,
-    ListVectorIndexPaginator,
+    ListVectorIndexesPaginator,
     ListVectorsPaginator
 )
 
@@ -199,17 +199,17 @@ def get_vector_index(self, request: models.GetVectorIndexRequest, **kwargs) -> m
         """
         return operations.get_vector_index(self._client, request, **kwargs)
 
-    def list_vector_index(self, request: models.ListVectorsIndexRequest, **kwargs) -> models.ListVectorsIndexResult:
+    def list_vector_indexes(self, request: models.ListVectorIndexesRequest, **kwargs) -> models.ListVectorIndexesResult:
         """
         List vector indexes in a bucket.
 
         Args:
-            request (ListVectorsIndexRequest): The request for the ListVectorIndex operation.
+            request (ListVectorIndexesRequest): The request for the ListVectorIndexes operation.
 
         Returns:
-            ListVectorsIndexResult: The result for the ListVectorIndex operation.
+            ListVectorIndexesResult: The result for the ListVectorIndexes operation.
         """
-        return operations.list_vector_index(self._client, request, **kwargs)
+        return operations.list_vector_indexes(self._client, request, **kwargs)
 
     def delete_vector_index(self, request: models.DeleteVectorIndexRequest, **kwargs) -> models.DeleteVectorIndexResult:
         """
@@ -333,13 +333,13 @@ def list_vector_buckets_paginator(self, **kwargs) -> ListVectorBucketsPaginator:
         """
         return ListVectorBucketsPaginator(self, **kwargs)
 
-    def list_vector_index_paginator(self, **kwargs) -> ListVectorIndexPaginator:
+    def list_vector_indexes_paginator(self, **kwargs) -> ListVectorIndexesPaginator:
         """Creates a paginator for ListVectorIndex
 
         Returns:
-            ListVectorIndexPaginator: a paginator for ListVectorIndex
+            ListVectorIndexesPaginator: a paginator for ListVectorIndex
         """
-        return ListVectorIndexPaginator(self, **kwargs)
+        return ListVectorIndexesPaginator(self, **kwargs)
 
     def list_vectors_paginator(self, **kwargs) -> ListVectorsPaginator:
         """Creates a paginator for ListVectors
diff --git a/alibabacloud_oss_v2/vectors/models/index_basic.py b/alibabacloud_oss_v2/vectors/models/index_basic.py
index 062caf7..9833aae 100644
--- a/alibabacloud_oss_v2/vectors/models/index_basic.py
+++ b/alibabacloud_oss_v2/vectors/models/index_basic.py
@@ -110,9 +110,9 @@ def __init__(
 
 
 # List
-class ListVectorsIndexRequest(serde.RequestModel):
+class ListVectorIndexesRequest(serde.RequestModel):
     """
-    The request for the ListVectorsIndex operation.
+    The request for the ListVectorIndexes operation.
     """
 
     _attribute_map = {
@@ -144,9 +144,9 @@ def __init__(
         self.prefix = prefix
 
 
-class ListVectorsIndexResult(serde.ResultModel):
+class ListVectorIndexesResult(serde.ResultModel):
     """
-    The result for the ListVectorsIndex operation.
+    The result for the ListVectorIndexes operation.
     """
 
     _attribute_map = {
diff --git a/alibabacloud_oss_v2/vectors/operations/index_basic.py b/alibabacloud_oss_v2/vectors/operations/index_basic.py
index db2bfd9..ce27e9d 100644
--- a/alibabacloud_oss_v2/vectors/operations/index_basic.py
+++ b/alibabacloud_oss_v2/vectors/operations/index_basic.py
@@ -64,7 +64,7 @@ def get_vector_index(client: _SyncClientImpl, request: models.GetVectorIndexRequ
         request=request,
         op_input=OperationInput(
             op_name='GetVectorIndex',
-            method='GET',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
@@ -89,23 +89,23 @@ def get_vector_index(client: _SyncClientImpl, request: models.GetVectorIndexRequ
     )
 
 
-def list_vector_index(client: _SyncClientImpl, request: models.ListVectorsIndexRequest, **kwargs) -> models.ListVectorsIndexResult:
+def list_vector_indexes(client: _SyncClientImpl, request: models.ListVectorIndexesRequest, **kwargs) -> models.ListVectorIndexesResult:
     """
     list_vector_index synchronously
 
     Args:
         client (_SyncClientImpl): A agent that sends the request.
-        request (ListVectorsIndexRequest): The request for the ListVectorIndex operation.
+        request (ListVectorIndexesRequest): The request for the ListVectorIndexes operation.
 
     Returns:
-        ListVectorsIndexResult: The result for the ListVectorIndex operation.
+        ListVectorIndexesResult: The result for the ListVectorIndexes operation.
     """
 
     op_input = serialize_input_vector_json_model(
         request=request,
         op_input=OperationInput(
-            op_name='ListVectorIndex',
-            method='GET',
+            op_name='ListVectorIndexes',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
@@ -122,7 +122,7 @@ def list_vector_index(client: _SyncClientImpl, request: models.ListVectorsIndexR
     op_output = client.invoke_operation(op_input, **kwargs)
 
     return serde.deserialize_output(
-        result=models.ListVectorsIndexResult(),
+        result=models.ListVectorIndexesResult(),
         op_output=op_output,
         custom_deserializer=[
             deserialize_output_vector_json_model
@@ -146,7 +146,7 @@ def delete_vector_index(client: _SyncClientImpl, request: models.DeleteVectorInd
         request=request,
         op_input=OperationInput(
             op_name='DeleteVectorIndex',
-            method='DELETE',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
diff --git a/alibabacloud_oss_v2/vectors/operations/vector_basic.py b/alibabacloud_oss_v2/vectors/operations/vector_basic.py
index 510d45e..0192b9a 100644
--- a/alibabacloud_oss_v2/vectors/operations/vector_basic.py
+++ b/alibabacloud_oss_v2/vectors/operations/vector_basic.py
@@ -23,7 +23,7 @@ def put_vectors(client: _SyncClientImpl, request: models.PutVectorsRequest, **kw
         request=request,
         op_input=OperationInput(
             op_name='PutVectors',
-            method='PUT',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
@@ -64,7 +64,7 @@ def get_vectors(client: _SyncClientImpl, request: models.GetVectorsRequest, **kw
         request=request,
         op_input=OperationInput(
             op_name='GetVectors',
-            method='GET',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
@@ -105,7 +105,7 @@ def list_vectors(client: _SyncClientImpl, request: models.ListVectorsRequest, **
         request=request,
         op_input=OperationInput(
             op_name='ListVectors',
-            method='GET',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
@@ -146,7 +146,7 @@ def delete_vectors(client: _SyncClientImpl, request: models.DeleteVectorsRequest
         request=request,
         op_input=OperationInput(
             op_name='DeleteVectors',
-            method='DELETE',
+            method='POST',
             headers=CaseInsensitiveDict({
                 'Content-Type': 'application/json',
             }),
diff --git a/alibabacloud_oss_v2/vectors/paginator.py b/alibabacloud_oss_v2/vectors/paginator.py
index 48ba784..bd0ca25 100644
--- a/alibabacloud_oss_v2/vectors/paginator.py
+++ b/alibabacloud_oss_v2/vectors/paginator.py
@@ -58,38 +58,38 @@ def __repr__(self) -> str:
         return "<ListVectorBucketsPaginator>"
 
 
-class ListVectorIndexAPIClient(abc.ABC):
-    """Abstract base class for list_vector_index client."""
+class ListVectorIndexesAPIClient(abc.ABC):
+    """Abstract base class for list_vector_indexes client."""
 
     @abc.abstractmethod
-    def list_vector_index(self, request: models.ListVectorsIndexRequest, **kwargs) -> models.ListVectorsIndexResult:
+    def list_vector_indexes(self, request: models.ListVectorIndexesRequest, **kwargs) -> models.ListVectorIndexesResult:
         """Lists vector indexes in a bucket."""
 
 
-class ListVectorIndexPaginator:
-    """A paginator for ListVectorIndex"""
+class ListVectorIndexesPaginator:
+    """A paginator for ListVectorIndexes"""
 
     def __init__(
             self,
-            client: ListVectorIndexAPIClient,
+            client: ListVectorIndexesAPIClient,
             **kwargs: Any
     ) -> None:
         """
-            client (ListVectorIndexAPIClient): A agent that sends the request.
+            client (ListVectorIndexesAPIClient): A agent that sends the request.
             limit (int, optional): The maximum number of items in the response.
         """
         self._client = client
         self._limit = kwargs.get('limit', None)
 
-    def iter_page(self, request: models.ListVectorsIndexRequest, **kwargs: Any) -> Iterator[models.ListVectorsIndexResult]:
+    def iter_page(self, request: models.ListVectorIndexesRequest, **kwargs: Any) -> Iterator[models.ListVectorIndexesResult]:
         """Iterates over the vector indexes.
 
         Args:
-            request (models.ListVectorsIndexRequest): The request for the ListVectorIndex operation.
+            request (models.ListVectorIndexesRequest): The request for the ListVectorIndexes operation.
             limit (int, optional): The maximum number of items in the response.
 
         Yields:
-            Iterator[models.ListVectorsIndexResult]: An iterator of ListVectorsIndexResult from the response
+            Iterator[models.ListVectorIndexesResult]: An iterator of ListVectorIndexes from the response
         """
         limit = kwargs.get('limit', self._limit)
         req = copy.copy(request)
@@ -100,7 +100,7 @@ def iter_page(self, request: models.ListVectorsIndexRequest, **kwargs: Any) -> I
         is_truncated = False
 
         while first_page or is_truncated:
-            result = self._client.list_vector_index(req)
+            result = self._client.list_vector_indexes(req)
             yield result
 
             first_page = False
@@ -109,7 +109,7 @@ def iter_page(self, request: models.ListVectorsIndexRequest, **kwargs: Any) -> I
             is_truncated = bool(next_token)
 
     def __repr__(self) -> str:
-        return "<ListVectorIndexPaginator>"
+        return "<ListVectorIndexesPaginator>"
 
 
 
diff --git a/sample/vector/vector_get_vectors.py b/sample/vector/vector_get_vectors.py
index 5773122..afd26a9 100644
--- a/sample/vector/vector_get_vectors.py
+++ b/sample/vector/vector_get_vectors.py
@@ -32,7 +32,7 @@ def main():
         index_name=args.index_name,
         keys=keys,
         return_data=True,
-        return_metadata=False
+        return_metadata=True
     ))
 
     print(f'status code: {result.status_code},'
diff --git a/sample/vector/vector_list_vector_index.py b/sample/vector/vector_list_vector_index.py
index b15be62..84abdd1 100644
--- a/sample/vector/vector_list_vector_index.py
+++ b/sample/vector/vector_list_vector_index.py
@@ -27,10 +27,10 @@ def main():
     client = oss_vectors.Client(cfg)
 
     # Create the Paginator for the ListVectorIndex operation
-    paginator = client.list_vector_index_paginator()
+    paginator = client.list_vector_indexes_paginator()
 
     # Iterate through the vector index pages
-    for page in paginator.iter_page(oss_vectors.models.ListVectorsIndexRequest(
+    for page in paginator.iter_page(oss_vectors.models.ListVectorIndexesRequest(
         bucket=args.bucket
         )
     ):
diff --git a/sample/vector/vector_list_vectors.py b/sample/vector/vector_list_vectors.py
index a3c8067..af60786 100644
--- a/sample/vector/vector_list_vectors.py
+++ b/sample/vector/vector_list_vectors.py
@@ -39,7 +39,7 @@ def main():
     # Iterate through the vectors pages
     for page in paginator.iter_page(request):
         for o in page.vectors:
-            print(f'Vector Key: {o.get("key")}')
+            print(f'Vector: {o}')
 
 if __name__ == "__main__":
     main()
diff --git a/sample/vector/vector_put_bucket_logging.py b/sample/vector/vector_put_bucket_logging.py
index ae1cfdc..1e7c038 100644
--- a/sample/vector/vector_put_bucket_logging.py
+++ b/sample/vector/vector_put_bucket_logging.py
@@ -7,6 +7,7 @@
 parser.add_argument('--bucket', help='The name of the bucket.', required=True)
 parser.add_argument('--endpoint', help='The domain names that other services can use to access OSS')
 parser.add_argument('--account_id', help='The account id.', required=True)
+parser.add_argument('--target_bucket', help='The name of the target bucket.', required=True)
 
 def main():
     args = parser.parse_args()
@@ -26,10 +27,13 @@ def main():
 
     result = vector_client.put_bucket_logging(oss_vectors.models.PutBucketLoggingRequest(
         bucket=args.bucket,
-        logging_enabled=oss_vectors.models.LoggingEnabled(
-            target_bucket='target-bucket-name',
-            target_prefix='log-prefix',
-        ),
+        bucket_logging_status=oss_vectors.models.BucketLoggingStatus(
+            logging_enabled=oss_vectors.models.LoggingEnabled(
+                target_bucket=args.target_bucket,
+                target_prefix='log-prefix',
+                logging_role='AliyunOSSLoggingDefaultRole'
+            )
+        )
     ))
 
     print(f'status code: {result.status_code},'
diff --git a/sample/vector/vector_put_vector_index.py b/sample/vector/vector_put_vector_index.py
index 68a0b2a..1dc7fb3 100644
--- a/sample/vector/vector_put_vector_index.py
+++ b/sample/vector/vector_put_vector_index.py
@@ -29,8 +29,8 @@ def main():
         bucket=args.bucket,
         index_name=args.index_name,
         dimension=128,
-        data_type='HNSW',
-        distance_metric='EUCLIDEAN',
+        data_type='float32',
+        distance_metric='cosine',
         metadata={"nonFilterableMetadataKeys": ["key1", "key2"]}
     ))
 
diff --git a/sample/vector/vector_put_vectors.py b/sample/vector/vector_put_vectors.py
index 312911e..6e8cbad 100644
--- a/sample/vector/vector_put_vectors.py
+++ b/sample/vector/vector_put_vectors.py
@@ -27,14 +27,14 @@ def main():
 
     vectors = [
         {
-            "data": {"float32": [0.1, 0.2, 0.3]},
-            "key": "vector-key-1",
-            "metadata": {"key1": "value1", "key2": "value2"}
+            "data": {"float32":  [0.1] * 128},
+            "key": "key1",
+            "metadata": {"metadata1": "value1", "metadata2": "value2"}
         },
         {
-            "data": {"float32": [0.1, 0.3, 0.4]},
-            "key": "vector-key-2",
-            "metadata": {"key3": "value3", "key4": "value4"}
+            "data": {"float32": [0.2] * 128},
+            "key": "key2",
+            "metadata": {"metadata3": "value3", "metadata4": "value4"}
         }
     ]
 
diff --git a/sample/vector/vector_query_vectors.py b/sample/vector/vector_query_vectors.py
index a09aa5d..99c765b 100644
--- a/sample/vector/vector_query_vectors.py
+++ b/sample/vector/vector_query_vectors.py
@@ -28,16 +28,12 @@ def main():
     query_filter = {
         "$and": [{
             "type": {
-                "$in": ["comedy", "documentary"]
-            }
-        }, {
-            "year": {
-                "$gte": 2020
+                "$nin": ["comedy", "documentary"]
             }
         }]
     }
 
-    query_vector = {"float32": [0.1, 0.2, 0.3]}
+    query_vector = {"float32": [0.1] * 128}
 
     result = vector_client.query_vectors(oss_vectors.models.QueryVectorsRequest(
         bucket=args.bucket,
@@ -45,7 +41,7 @@ def main():
         filter=query_filter,
         query_vector=query_vector,
         return_distance=True,
-        return_metadata=False,
+        return_metadata=True,
         top_k=10
     ))
 
diff --git a/tests/integration/vector/test_paginator.py b/tests/integration/vector/test_paginator.py
index a94014c..3690ae6 100644
--- a/tests/integration/vector/test_paginator.py
+++ b/tests/integration/vector/test_paginator.py
@@ -91,8 +91,8 @@ def test_list_vector_index_paginator(self):
         ))
 
         # Test paginator with limit parameter set during initialization
-        paginator = self.vector_client.list_vector_index_paginator(limit=1)
-        request = oss_vectors.models.ListVectorsIndexRequest(
+        paginator = self.vector_client.list_vector_indexes_paginator(limit=1)
+        request = oss_vectors.models.ListVectorIndexesRequest(
             bucket=bucket_name
         )
         iterator = paginator.iter_page(request)
@@ -103,7 +103,7 @@ def test_list_vector_index_paginator(self):
         self.assertEqual(3, len(pages))
 
         # Test paginator with custom limit parameter
-        paginator = self.vector_client.list_vector_index_paginator(limit=2)
+        paginator = self.vector_client.list_vector_indexes_paginator(limit=2)
         iterator = paginator.iter_page(request, limit=3)
         pages = []
         for p in iterator:
@@ -115,7 +115,7 @@ def test_list_vector_index_paginator(self):
         self.assertGreater(len(pages), 0)
 
         # Test default paginator without limit
-        paginator = self.vector_client.list_vector_index_paginator()
+        paginator = self.vector_client.list_vector_indexes_paginator()
         iterator = paginator.iter_page(request)
         total_indexes = 0
         for p in iterator:
diff --git a/tests/integration/vector/test_vector_basic_client.py b/tests/integration/vector/test_vector_basic_client.py
index f695086..156127c 100644
--- a/tests/integration/vector/test_vector_basic_client.py
+++ b/tests/integration/vector/test_vector_basic_client.py
@@ -143,7 +143,7 @@ def test_vector_basic(self):
         self.assertEqual(index_name, get_index_result.index.index_name)
 
         # 9. List indexes
-        list_index_result = self.vector_client.list_vector_index(oss_vectors.models.ListVectorsIndexRequest(
+        list_index_result = self.vector_client.list_vector_indexes(oss_vectors.models.ListVectorIndexesRequest(
             bucket=bucket_name
         ))
         self.assertEqual(200, list_index_result.status_code)
diff --git a/tests/integration/vector/test_vector_index_client.py b/tests/integration/vector/test_vector_index_client.py
index d14dbed..78f7f9f 100644
--- a/tests/integration/vector/test_vector_index_client.py
+++ b/tests/integration/vector/test_vector_index_client.py
@@ -74,11 +74,11 @@ def test_vector_index_lifecycle(self):
         self.assertEqual(distance_metric, get_result.index.distance_metric)
 
         # 4. List vector indexes and verify our index is included
-        list_indexes_request = oss_vectors.models.ListVectorsIndexRequest(
+        list_indexes_request = oss_vectors.models.ListVectorIndexesRequest(
             bucket=bucket_name
         )
 
-        list_result = self.vector_client.list_vector_index(list_indexes_request)
+        list_result = self.vector_client.list_vector_indexes(list_indexes_request)
 
         # Assert successful listing
         self.assertEqual(200, list_result.status_code)
diff --git a/tests/unit/vectors/models/test_index_basic.py b/tests/unit/vectors/models/test_index_basic.py
index 21741a8..ec30b57 100644
--- a/tests/unit/vectors/models/test_index_basic.py
+++ b/tests/unit/vectors/models/test_index_basic.py
@@ -237,7 +237,7 @@ def test_deserialize_result(self):
 
 class TestListVectorsIndex(unittest.TestCase):
     def test_constructor_request(self):
-        request = model.ListVectorsIndexRequest()
+        request = model.ListVectorIndexesRequest()
         self.assertIsNone(request.bucket)
         self.assertIsNone(request.max_results)
         self.assertIsNone(request.next_token)
@@ -245,7 +245,7 @@ def test_constructor_request(self):
         self.assertIsInstance(request, serde.RequestModel)
 
     def test_constructor_request_with_parameters(self):
-        request = model.ListVectorsIndexRequest(
+        request = model.ListVectorIndexesRequest(
             bucket='test-bucket',
             max_results=100,
             next_token='test-token',
@@ -258,7 +258,7 @@ def test_constructor_request_with_parameters(self):
         self.assertIsInstance(request, serde.RequestModel)
 
     def test_serialize_request(self):
-        request = model.ListVectorsIndexRequest(
+        request = model.ListVectorIndexesRequest(
             bucket='test-bucket',
             max_results=100,
             next_token='test-token',
@@ -283,7 +283,7 @@ def test_serialize_request(self):
         self.assertEqual(json_str, op_input.body.decode())
 
     def test_constructor_result(self):
-        result = model.ListVectorsIndexResult()
+        result = model.ListVectorIndexesResult()
         self.assertIsInstance(result, serde.ResultModel)
 
     def test_deserialize_result(self):
@@ -315,7 +315,7 @@ def test_deserialize_result(self):
             )
         )
 
-        result = model.ListVectorsIndexResult()
+        result = model.ListVectorIndexesResult()
         deserializer = [_serde.deserialize_output_vector_json_model]
         serde.deserialize_output(result, op_output, custom_deserializer=deserializer)