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Nodes API


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These endpoints allow us to get information about the nodes in the current cluster and update the friendly names of individual nodes. The list of nodes returned is a view of the state of the system and cannot be edited through this API. From this API, nodes can be assigned friendly names, but that is currently the only editable attribute. The friendly names may provide a more convenient mechanism to identify individual nodes for administrative activities.


Get Nodes

GET /service/rest/v1/nodes

This endpoint gives us a listing of the nodes currently in the cluster.

curl -u admin:admin123 -X GET http://localhost:8081/service/rest/v1/nodes

The information returned includes a unique nodeIdentity for each node along with the current socket address binding and the current friendly name of the node:

[ {
  "nodeIdentity" : "20550283-C2239399-2DC0307C-DE78EE76-0670E0BC",
  "socketAddress" : "/",
  "friendlyName" : null
}, {
  "nodeIdentity" : "2840754A-E8053498-0DA01A51-9A7582DD-A52D5279",
  "socketAddress" : "/",
  "friendlyName" : null
}, {
  "nodeIdentity" : "A54F51B3-F0EBD6F7-23D4C3A0-ABA922CD-9DCE73EA",
  "socketAddress" : "/",
  "friendlyName" : null
} ]

Update Nodes

PUT /service/rest/v1/nodes

This endpoint allows us to update friendly names for nodes in the cluster:

curl -u admin:admin123 -X PUT --header 'Content-Type: application/json' \
 http://localhost:8081/service/rest/v1/nodes \
 -d '{"nodeIdentity" : "20550283-C2239399-2DC0307C-DE78EE76-0670E0BC","socketAddress" : "/","friendlyName" : "node1"}'

If successful, this operation returns the updated information for the node:

  "nodeIdentity" : "20550283-C2239399-2DC0307C-DE78EE76-0670E0BC",
  "socketAddress" : "/",
  "friendlyName" : "node1"