Refactor: use SecretStr for embaas embeddings (#15091)

libs/community/langchain_community/embeddings/embaas.py

@@ -2,8 +2,8 @@ from typing import Any, Dict, List, Mapping, Optional
 
 import requests
 from langchain_core.embeddings import Embeddings
-from langchain_core.pydantic_v1 import BaseModel, Extra, root_validator
-from langchain_core.utils import get_from_dict_or_env
+from langchain_core.pydantic_v1 import BaseModel, Extra, SecretStr, root_validator
+from langchain_core.utils import convert_to_secret_str, get_from_dict_or_env
 from requests.adapters import HTTPAdapter, Retry
 from typing_extensions import NotRequired, TypedDict
 
@@ -50,7 +50,7 @@ class EmbaasEmbeddings(BaseModel, Embeddings):
     """Instruction used for domain-specific embeddings."""
     api_url: str = EMBAAS_API_URL
     """The URL for the embaas embeddings API."""
-    embaas_api_key: Optional[str] = None
+    embaas_api_key: Optional[SecretStr] = None
     """max number of retries for requests"""
     max_retries: Optional[int] = 3
     """request timeout in seconds"""
@@ -64,8 +64,8 @@ class EmbaasEmbeddings(BaseModel, Embeddings):
     @root_validator()
     def validate_environment(cls, values: Dict) -> Dict:
         """Validate that api key and python package exists in environment."""
-        embaas_api_key = get_from_dict_or_env(
-            values, "embaas_api_key", "EMBAAS_API_KEY"
+        embaas_api_key = convert_to_secret_str(
+            get_from_dict_or_env(values, "embaas_api_key", "EMBAAS_API_KEY")
         )
         values["embaas_api_key"] = embaas_api_key
         return values
@@ -85,7 +85,7 @@ class EmbaasEmbeddings(BaseModel, Embeddings):
     def _handle_request(self, payload: EmbaasEmbeddingsPayload) -> List[List[float]]:
         """Sends a request to the Embaas API and handles the response."""
         headers = {
-            "Authorization": f"Bearer {self.embaas_api_key}",
+            "Authorization": f"Bearer {self.embaas_api_key.get_secret_value()}",
             "Content-Type": "application/json",
         }
 

libs/community/tests/unit_tests/embeddings/test_embaas.py

@@ -0,0 +1,21 @@
+"""Test EmbaasEmbeddings embeddings"""
+
+from langchain_core.pydantic_v1 import SecretStr
+from pytest import CaptureFixture
+
+from langchain_community.embeddings import EmbaasEmbeddings
+
+
+def test_api_key_is_string() -> None:
+    llm = EmbaasEmbeddings(embaas_api_key="secret-api-key")
+    assert isinstance(llm.embaas_api_key, SecretStr)
+
+
+def test_api_key_masked_when_passed_via_constructor(
+    capsys: CaptureFixture,
+) -> None:
+    llm = EmbaasEmbeddings(embaas_api_key="secret-api-key")
+    print(llm.embaas_api_key, end="")
+    captured = capsys.readouterr()
+
+    assert captured.out == "**********"