feat: claude api support (#572)

api/core/llm/wrappers/anthropic_wrapper.py

@@ -0,0 +1,27 @@
+import logging
+from functools import wraps
+
+import anthropic
+
+from core.llm.error import LLMAPIConnectionError, LLMAPIUnavailableError, LLMRateLimitError, LLMAuthorizationError, \
+    LLMBadRequestError
+
+
+def handle_anthropic_exceptions(func):
+    @wraps(func)
+    def wrapper(*args, **kwargs):
+        try:
+            return func(*args, **kwargs)
+        except anthropic.APIConnectionError as e:
+            logging.exception("Failed to connect to Anthropic API.")
+            raise LLMAPIConnectionError(f"Anthropic: The server could not be reached, cause: {e.__cause__}")
+        except anthropic.RateLimitError:
+            raise LLMRateLimitError("Anthropic: A 429 status code was received; we should back off a bit.")
+        except anthropic.AuthenticationError as e:
+            raise LLMAuthorizationError(f"Anthropic: {e.message}")
+        except anthropic.BadRequestError as e:
+            raise LLMBadRequestError(f"Anthropic: {e.message}")
+        except anthropic.APIStatusError as e:
+            raise LLMAPIUnavailableError(f"Anthropic: code: {e.status_code}, cause: {e.message}")
+
+    return wrapper