Adding an Edge

You can use a specific API provided by GES to add an edge. The sample code is as follows:

public static void addEdge(GraphClient graphClient) throws ApiException
{
       AddEdgeReq req = new AddEdgeReq();
       req.setSource("Lily");
       req.setTarget("Rocky");
       req.setLabel("rate");
       Map properties = new HashMap();
       List score = new ArrayList();
       score.add("5");
       properties.put("Score", score);
       List datetime = new ArrayList();
       datetime.add("2018-01-01 20:30:05");
       properties.put("Datetime", datetime);
       req.setProperties(properties);
       graphClient.addEdge(req);
}