added tigergraph as graph storage

config.ini.example

@@ -35,3 +35,9 @@ ivfflat_lists = 100
 
 [memgraph]
 uri = bolt://localhost:7687
+
+[tigergraph]
+uri = http://localhost:9000
+username = tigergraph
+password = your_password
+graph_name = lightrag

env.example

@@ -395,6 +395,13 @@ MEMGRAPH_PASSWORD=
 MEMGRAPH_DATABASE=memgraph
 # MEMGRAPH_WORKSPACE=forced_workspace_name
 
+### TigerGraph Configuration
+TIGERGRAPH_URI=http://localhost:9000
+TIGERGRAPH_USERNAME=tigergraph
+TIGERGRAPH_PASSWORD='your_password'
+TIGERGRAPH_GRAPH_NAME=lightrag
+# TIGERGRAPH_WORKSPACE=forced_workspace_name
+
 ############################
 ### Evaluation Configuration
 ############################

lightrag/kg/__init__.py

@@ -15,6 +15,7 @@ STORAGE_IMPLEMENTATIONS = {
             "PGGraphStorage",
             "MongoGraphStorage",
             "MemgraphStorage",
+            "TigerGraphStorage",
         ],
         "required_methods": ["upsert_node", "upsert_edge"],
     },
@@ -53,6 +54,11 @@ STORAGE_ENV_REQUIREMENTS: dict[str, list[str]] = {
     "Neo4JStorage": ["NEO4J_URI", "NEO4J_USERNAME", "NEO4J_PASSWORD"],
     "MongoGraphStorage": [],
     "MemgraphStorage": ["MEMGRAPH_URI"],
+    "TigerGraphStorage": [
+        "TIGERGRAPH_URI",
+        "TIGERGRAPH_USERNAME",
+        "TIGERGRAPH_PASSWORD",
+    ],
     "AGEStorage": [
         "AGE_POSTGRES_DB",
         "AGE_POSTGRES_USER",
@@ -101,6 +107,7 @@ STORAGES = {
     "FaissVectorDBStorage": ".kg.faiss_impl",
     "QdrantVectorDBStorage": ".kg.qdrant_impl",
     "MemgraphStorage": ".kg.memgraph_impl",
+    "TigerGraphStorage": ".kg.tigergraph_impl",
 }