How to set RAM:Disk ratio for Elastic Search 7.6.2

I'm trying to setup the RAM:Disk ratio in Elastic Search using the API Curl

curl -X PUT
http://COORDINATE_HOST:PORT/api/v0.1/regions/ece-region/node_types/elasticsearch/default
-H 'Accept:  */* '
-H 'Content-Type: application/json'
-d '{ "node_type_id":"default", "overrides": {"instance_data": {"overrides": {"quota": { "fs_multiplier":"192GB" } } } } }'

But getting error no handler found for uri [/api/v0.1/regions/ece-region/node_types/elasticsearch/default] and method [PUT]

Can anyone suggest how do I setup and I need to setup without enabling https protocol

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