Variables可以用来存储有关整个图的数据,数据按照键值对的方式存取
PUT http://localhost:8080/graphs/hugegraph/variables/name
{ "data": "tom" }
200
{ "name": "tom" }
GET http://localhost:8080/graphs/hugegraph/variables
200
{ "name": "tom" }
GET http://localhost:8080/graphs/hugegraph/variables/name
200
{ "name": "tom" }
DELETE http://localhost:8080/graphs/hugegraph/variables/name
204