fix: avoid bedrock read timeout (add boto3_config param) (#1135)

* fix: avoid bedrock read timeout

* fix lint

* fix test

* add from_dict test

integrations/amazon_bedrock/src/haystack_integrations/components/generators/amazon_bedrock/generator.py

@@ -3,6 +3,7 @@
 import re
 from typing import Any, Callable, ClassVar, Dict, List, Optional, Type
 
+from botocore.config import Config
 from botocore.exceptions import ClientError
 from haystack import component, default_from_dict, default_to_dict
 from haystack.dataclasses import StreamingChunk
@@ -87,6 +88,7 @@ def __init__(
         max_length: Optional[int] = 100,
         truncate: Optional[bool] = True,
         streaming_callback: Optional[Callable[[StreamingChunk], None]] = None,
+        boto3_config: Optional[Dict[str, Any]] = None,
         **kwargs,
     ):
         """
@@ -102,6 +104,7 @@ def __init__(
         :param truncate: Whether to truncate the prompt or not.
         :param streaming_callback: A callback function that is called when a new token is received from the stream.
             The callback function accepts StreamingChunk as an argument.
+        :param boto3_config: The configuration for the boto3 client.
         :param kwargs: Additional keyword arguments to be passed to the model.
         These arguments are specific to the model. You can find them in the model's documentation.
         :raises ValueError: If the model name is empty or None.
@@ -120,6 +123,7 @@ def __init__(
         self.aws_region_name = aws_region_name
         self.aws_profile_name = aws_profile_name
         self.streaming_callback = streaming_callback
+        self.boto3_config = boto3_config
         self.kwargs = kwargs
 
         def resolve_secret(secret: Optional[Secret]) -> Optional[str]:
@@ -133,7 +137,10 @@ def resolve_secret(secret: Optional[Secret]) -> Optional[str]:
                 aws_region_name=resolve_secret(aws_region_name),
                 aws_profile_name=resolve_secret(aws_profile_name),
             )
-            self.client = session.client("bedrock-runtime")
+            config: Optional[Config] = None
+            if self.boto3_config:
+                config = Config(**self.boto3_config)
+            self.client = session.client("bedrock-runtime", config=config)
         except Exception as exception:
             msg = (
                 "Could not connect to Amazon Bedrock. Make sure the AWS environment is configured correctly. "
@@ -273,6 +280,7 @@ def to_dict(self) -> Dict[str, Any]:
             max_length=self.max_length,
             truncate=self.truncate,
             streaming_callback=callback_name,
+            boto3_config=self.boto3_config,
             **self.kwargs,
         )
 

integrations/amazon_bedrock/tests/test_generator.py

@@ -36,6 +36,7 @@ def test_to_dict(mock_boto3_session):
             "truncate": False,
             "temperature": 10,
             "streaming_callback": None,
+            "boto3_config": None,
         },
     }
 
@@ -57,12 +58,16 @@ def test_from_dict(mock_boto3_session):
                 "aws_profile_name": {"type": "env_var", "env_vars": ["AWS_PROFILE"], "strict": False},
                 "model": "anthropic.claude-v2",
                 "max_length": 99,
+                "boto3_config": {
+                    "read_timeout": 1000,
+                },
             },
         }
     )
 
     assert generator.max_length == 99
     assert generator.model == "anthropic.claude-v2"
+    assert generator.boto3_config == {"read_timeout": 1000}
 
 
 def test_default_constructor(mock_boto3_session, set_env_variables):