Add code to get link nodes

main.py

@@ -135,6 +135,12 @@ async def fastapi_get_links(network: str):
 
     return links
 
+@app.get("/getlinknodes/")
+async def fastapi_get_link_nodes(network: str, link: str):
+    result = get_link_nodes(network, link)
+
+    return [result.value.from_node, result.value.to_node]
+
 @app.post("/addlink/")
 async def fastapi_add_link(network: str, link: str, fromNode: str, toNode: str):
     idx = add_link(network, link, PIPE, fromNode, toNode)