update langchainplus client and docker file to reflect port changes (#5005)

# Currently, only the dev images are updated

langchain/callbacks/tracers/langchain.py

@@ -31,7 +31,7 @@ def get_headers() -> Dict[str, Any]:
 
 
 def get_endpoint() -> str:
-    return os.getenv("LANGCHAIN_ENDPOINT", "http://localhost:8000")
+    return os.getenv("LANGCHAIN_ENDPOINT", "http://localhost:1984")
 
 
 @retry(stop=stop_after_attempt(3), wait=wait_fixed(0.5))

langchain/cli/docker-compose.yaml

@@ -5,9 +5,7 @@ services:
     ports:
       - 80:80
     environment:
-      - BACKEND_URL=http://langchain-backend:8000
-      - PUBLIC_BASE_URL=http://localhost:8000
-      - PUBLIC_DEV_MODE=true
+      - REACT_APP_BACKEND_URL=http://localhost:1984
     depends_on:
       - langchain-backend
     volumes:
@@ -18,11 +16,11 @@ services:
   langchain-backend:
     image: langchain/${_LANGCHAINPLUS_IMAGE_PREFIX-}langchainplus-backend:latest
     environment:
-      - PORT=8000
+      - PORT=1984
       - LANGCHAIN_ENV=local_docker
       - LOG_LEVEL=warning
     ports:
-      - 8000:8000
+      - 1984:1984
     depends_on:
       - langchain-db
     build:

langchain/client/langchain.py

@@ -64,13 +64,13 @@ class LangChainPlusClient(BaseSettings):
     """Client for interacting with the LangChain+ API."""
 
     api_key: Optional[str] = Field(default=None, env="LANGCHAIN_API_KEY")
-    api_url: str = Field(default="http://localhost:8000", env="LANGCHAIN_ENDPOINT")
+    api_url: str = Field(default="http://localhost:1984", env="LANGCHAIN_ENDPOINT")
     tenant_id: Optional[str] = None
 
     @root_validator(pre=True)
     def validate_api_key_if_hosted(cls, values: Dict[str, Any]) -> Dict[str, Any]:
         """Verify API key is provided if url not localhost."""
-        api_url: str = values.get("api_url", "http://localhost:8000")
+        api_url: str = values.get("api_url", "http://localhost:1984")
         api_key: Optional[str] = values.get("api_key")
         if not _is_localhost(api_url):
             if not api_key: