feat: litellm manifold example

pipelines/examples/litellm_manifold_pipeline.py

@@ -0,0 +1,79 @@
+from typing import List, Union, Generator, Iterator
+from schemas import OpenAIChatMessage
+from pydantic import BaseModel
+import requests
+
+
+class Pipeline:
+    def __init__(self):
+        # You can also set the pipelines that are available in this pipeline.
+        # Set manifold to True if you want to use this pipeline as a manifold.
+        # Manifold pipelines can have multiple pipelines.
+        self.type = "manifold"
+
+        # Optionally, you can set the id and name of the pipeline.
+        # Assign a unique identifier to the pipeline.
+        # The identifier must be unique across all pipelines.
+        # The identifier must be an alphanumeric string that can include underscores or hyphens. It cannot contain spaces, special characters, slashes, or backslashes.
+        self.id = "litellm_manifold"
+
+        # Optionally, you can set the name of the manifold pipeline.
+        self.name = "LiteLLM: "
+
+        class Valves(BaseModel):
+            LITELLM_BASE_URL: str
+
+        # Initialize rate limits
+        self.valves = Valves(**{"LITELLM_BASE_URL": "http://localhost:4000"})
+
+        self.pipelines = self.get_litellm_models()
+        pass
+
+    def get_litellm_models(self):
+        if self.valves.LITELLM_BASE_URL:
+            r = requests.get(f"{self.valves.LITELLM_BASE_URL}/v1/models")
+            models = r.json()
+            return [
+                {
+                    "id": model["id"],
+                    "name": model["name"] if "name" in model else model["id"],
+                }
+                for model in models["data"]
+            ]
+        else:
+            return []
+
+    async def on_startup(self):
+        # This function is called when the server is started.
+        print(f"on_startup:{__name__}")
+        pass
+
+    async def on_shutdown(self):
+        # This function is called when the server is stopped.
+        print(f"on_shutdown:{__name__}")
+        pass
+
+    def pipe(
+        self, user_message: str, model_id: str, messages: List[dict], body: dict
+    ) -> Union[str, Generator, Iterator]:
+        if "user" in body:
+            print("######################################")
+            print(f'# User: {body["user"]["name"]} ({body["user"]["id"]})')
+            print(f"# Message: {user_message}")
+            print("######################################")
+
+        try:
+            r = requests.post(
+                url=f"{self.valves.LITELLM_BASE_URL}/v1/chat/completions",
+                json={**body, "model": model_id, "user_id": body["user"]["id"]},
+                stream=True,
+            )
+
+            r.raise_for_status()
+
+            if body["stream"]:
+                return r.iter_lines()
+            else:
+                return r.json()
+        except Exception as e:
+            return f"Error: {e}"