Add list_collection and db path

main.py

@@ -40,6 +40,10 @@ def heartbeat():
     print("Received heartbeat request")
     return bkend.heartbeat()
 
+@app.get(api_base+"/collection")
+def list_collection():
+    print("Received list_collection request")
+    return bkend.list_collections()
 
 if __name__ == "__main__":
   uvicorn.run(app, host="0.0.0.0", port=8000)

server.py

@@ -6,7 +6,7 @@ class client():
     def __init__(self):
         self.db = chromadb.Client(Settings(
             chroma_db_impl="duckdb+parquet",
-            persist_directory="/path/to/persist/directory" # Optional, defaults to .chromadb/ in the current directory
+            persist_directory="./index/chroma" # Optional, defaults to .chromadb/ in the current directory
         ))
 
     def heartbeat(self):