Add API to get both nodes and links

main.py

@@ -1409,6 +1409,21 @@ async def fastapi_get_network_coords(network: str) -> list[str] | None:
         result.append(f"{node_id}:{coord['type']}:{coord['x']}:{coord['y']}")
     return result
 
+# DingZQ, 2025-01-27, get all node coord/links
+# nodes: id:type:x:y
+# links: id:type:node1:node2
+# node type: junction, reservoir, tank
+# link type: pipe, pump, valve
+@app.get("/getnetworkgeometries/")
+async def fastapi_get_network_geometries(network: str) -> dict[str, Any] | None:
+    coords = get_network_node_coords(network)
+    nodes = []
+    for node_id, coord in coords.items():
+        nodes.append(f"{node_id}:{coord['type']}:{coord['x']}:{coord['y']}")
+    links = get_network_link_nodes(network)
+
+    return { 'nodes': nodes, 'links': links }
+
 # DingZQ, 2024-12-31, get major node coord
 # id:type:x:y
 # type: junction, reservoir, tank