get http://127.0.0.1:8080/routeMaps
the returned data contains options object and data object. data objects includes Route map(s), each map includes Route rule(s), each rule has a match part and a set part. The schema of returned data:
{ 'options' : {'activeMap': 'map1'}, 'data': {'map1' : {'prio': {...}, 'self':'map1'}}}
The 'prio' object contains rules key value pairs, each key is the priority of a rule, each value is the rule object.