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REST API for Groups


Create Group

Description

Create a new node group.

REQUEST

  • URI : http://{host}:{port}/streammanager/api/2.0/admin/nodegroup?accessToken=<accessToken>
  • Method: POST
  • Data: JSON

    {
        "regions": [
            "<region-code>"
        ],
        "launchConfig": "<launch-config-name>",
        "scalePolicy": "<scale-policy-name>"
    }

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • Data:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 201
  • Data:

    {
      "id": <autogen-group-id>,
      "name": "<autogen-group-name>",
      "originConnections": <min-origin-connections>,
      "regions": [
        "<region-code>"
      ],
      "launchConfig": "<launch-config-name>",
      "scalePolicy": "<scale-policy-name>",
      "timestamp": <timestamp>
    }

Example

REQUEST

  • URI: http://{host}:5080/streammanager/api/2.0/admin/nodegroup?accessToken=xyz123
  • Method: POST
  • Data : JSON

    {
        "regions": [
            "us-central1",
            "us-east1"
        ],
        "launchConfig": "default",
        "scalePolicy": "default"
    }

RESPONSE

  • Success: HTTP CODE 201
  • Data:

    {
      "id": 2,
      "name": "group-d2f6aade-c6eb-4b92-b056-3f3a9f99b96f",
      "originConnections": 0,
      "regions": [
        "us-central1",
        "us-east1"
      ],
      "launchConfig": "default",
      "scalePolicy": "default",
      "timestamp": 1452595891000
    }

regions

The geographical regions where you would like the nodes to be created. Stream Manager usually lets the Autoscaler use this list in a round-robin style. You can find a list of available Google Cloud regions here or a list of available AWS regions here.

originConnections

An attribute reserved for future use. Currently this is always set to zero, whena new group is created.

launchConfig

Name of the launch configuration to be used for launching each new instance in the nodegroup. Usually this implies the consistent machine configuration for a group. A launch configuration defines your machine type, max connections, etc. for each instance type (origin and edge).

scalePolicy

Name of the scale policy to be used by Autoscaler to launch new edges when load conditions occur. A scale policy defines details such as min-max edges allowed, instances warm-up time, cooldown period, etc.


List Groups

Description

List all available groups in the system.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • Data:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    [
    {
      "id": <autogen-group-id>,
      "name": "<autogen-group-name>"
      "originConnections": <min-origin-connections>,
      "regions": [
        "<compute-region-code>"
      ],
      "launchConfig": "<launch-config-name>",
      "scalePolicy": "<scale-policy-name>",
      "timestamp": <timestamp>
    }
    ]

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup?accessToken=xyz123
  • Method: GET

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    [
      {
        "id": 3,
        "name": "group-e658a196-cb39-411a-86c1-d1e618222100"
        "originConnections": 0,
        "regions": [
          "us-central1-a",
          "us-central1-f"
        ],
        "launchConfig": "default",
        "scalePolicy": "default",
        "timestamp": null
      },
      {
        "id": 4,
        "name": "group-51921df1-d68e-4fee-8332-6dbdf7102e47",
        "originConnections": 0,
        "regions": [
          "us-central1-a",
          "us-central1-f"
        ],
        "launchConfig": "default",
        "scalePolicy": "default",
        "timestamp": null
      }
    ]

List Group Nodes

Description

List all nodes in a group and their status. The different statuses for a node are:

  • pending (stream manager has contacted the cloud service to start an instance)
  • running (instance has been launched, and services are starting up)
  • inservice (node is active and available for streaming)
  • terminating (node is being deactivated)

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/{groupName}/node?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • DATA:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    [
     {
        "identifier": "<node-identifier>",
        "role": "<role>",
        "availabilityZone": "<availability-zone-code>",
        "address": "<host>",
        "state": "<node-state>",
        "launchConfig": "<launch-config-name>",
        "capacity": <connection-capacity>
      }
    ]

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/group-8bcc96ed-b7e5-4044-b797-1bc93d5f0be4/node?accessToken=xyz123
  • Method: GET

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    [
      {
        "identifier": "node-us-central1-a-1452586832022",
        "role": "origin",
        "availabilityZone": "us-central1-a",
        "address": "104.197.131.87",
        "state": "inservice",
        "launchConfig": "default",
        "capacity": 1500
      },
      {
        "identifier": "node-us-central1-a-1452587484090",
        "role": "edge",
        "availabilityZone": "us-central1-a",
        "address": "104.197.138.228",
        "state": "inservice",
        "launchConfig": "default",
        "capacity": 500
      }
      ]

List Group Origins

Description

List all origin nodes in a group.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/{groupName}/node/origin?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • DATA:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • DATA:

    [
     {
        "identifier": "<node-identifier>",
        "role": "<role>",
        "availabilityZone": "<availability-zone-code",
        "address": "<host>",
        "state": "<node-state>",
        "launchConfig": "<launch-config-name>",
        "capacity": <connection-capacity>
      }
    ]

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/group-8bcc96ed-b7e5-4044-b797-1bc93d5f0be4/node/origin?accessToken=xyz123
  • Method: GET

RESPONSE

  • Success: HTTP CODE 200
  • DATA:

    [
      {
        "identifier": "node-us-central1-a-1452586832022",
        "role": "origin",
        "availabilityZone": "us-central1-a",
        "address": "104.197.131.87",
        "state": "inservice",
        "launchConfig": "default",
        "capacity": 1500
      }
    ]

List Group Edges

Description

List all edge nodes in a group.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/{groupName}/node/edge?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • Data:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    [
     {
        "identifier": "<node-identifier>",
        "role": "<role>",
        "availabilityZone": "<availability-zone-code",
        "address": "<host>",
        "state": "<node-state>",
        "launchConfig": "<launch-config-name>",
        "capacity": <connection-capacity>
      }
    ]

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/group-8bcc96ed-b7e5-4044-b797-1bc93d5f0be4/node/edge?accessToken=xyz123
  • Method: GET

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    [
      {
        "identifier": "node-us-central1-a-1452587484090",
        "role": "edge",
        "availabilityZone": "us-central1-a",
        "address": "104.197.138.228",
        "state": "inservice",
        "launchConfig": "default",
        "capacity": 500
      },
      {
        "identifier": "node-us-central1-f-1452587643929",
        "role": "edge",
        "availabilityZone": "us-central1-f",
        "address": "104.197.234.171",
        "state": "inservice",
        "launchConfig": "default",
        "capacity": 500
      }
    ]

Read Group

Description

Reads a node group.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/<groupName>?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • Data:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    {
      "id": <autogen-group-id>,
      "originConnections": 0,
      "name": "<autogen-group-name>",
      "region": [
        "<region-code>"
      ],
      "launchConfig": "<launch-config-name>",
      "scalePolicy": "<scale-policy-name>",
      "timestamp": <timestamp>
    }

Example

REQUEST

  • URI: http://{host}:5080/streammanager/api/2.0/admin/nodegroup/group-d2f6aade-c6eb-4b92-b056-3f3a9f99b96f?accessToken=xyz123
  • Method : GET

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    {
      "id": 2,
      "name": "group-d2f6aade-c6eb-4b92-b056-3f3a9f99b96f",
      "originConnections": 0,
      "regions": [
        "us-central1",
        "us-east1"
      ],
      "launchConfig": "default",
      "scalePolicy": "default",
      "timestamp": 1452595891000
    }

Delete Group

Description

Deletes a node group. If the group has no nodes in it then it is deleted right away, otherwise all the nodes of the group are deleted in the background separately, and then the group itself is deleted once it is empty.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/<groupName>?accessToken=<accessToken>
  • Method: DELETE

RESPONSE

  • FAILURE: HTTP CODE 400 or 404
  • Data :

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    {
      "id": <autogen-group-id>,
      "name": "<autogen-group-name>",
      "originConnections": 0,
      "regions": [
        "<compute-region-code>"
      ],
      "launchConfig": "<launch-config-name>",
      "scalePolicy": "<scale-policy-name>",
      "timestamp": <timestamp>
    }

Example

REQUEST

  • URI: http://{host}:5080/streammanager/api/2.0/admin/nodegroup/group-d2f6aade-c6eb-4b92-b056-3f3a9f99b96f?accessToken=xyz123
  • Method: DELETE

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    {
      "id": 2,
      "name": "group-d2f6aade-c6eb-4b92-b056-3f3a9f99b96f",
      "originConnections": 0,
      "regions": [
        "us-central1",
        "us-central1"
      ],
      "launchConfig": "default",
      "scalePolicy": "default",
      "timestamp": 1452595891000
    }

Launch New Origin

Description

Launches a new origin for a node group. Launching a node on a Cloud Platform is a complex asynchronous process. The REST gateway will provide you a response as soon as it knows that the cloud platform has acknowledged the request.

The maximum number of origins allowed in a nodegroup is defined through the scale policy file. Additional origins cannot be launched in a group after an edge has been launched in it.

The actual instance boot up may take up to two minutes, dependingo on the environment.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/{groupName}/node/origin?accessToken=<accessToken>
  • Method: POST

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • Data:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 201
  • Data:

    {
      "id": <auto-gen-id>,
      "identifier": "<node-identifier>",
      "availabilityZone": "<availability-zone-code>",
      "role": "<role>",
      "group": "<group-identifier>",
      "requestTime": <timestamp>
    }

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/group-51921df1-d68e-4fee-8332-6dbdf7102e47/node/origin?accessToken=xyz123
  • Method: POST

RESPONSE

  • Success: HTTP CODE 201
  • Data:

    {
      "id": 6,
      "identifier": "node-us-central1-a-1452600712264",
      "availabilityZone": "us-central1-a",
      "role": "origin",
      "group": "group-51921df1-d68e-4fee-8332-6dbdf7102e47",
      "requestTime": 1452600723615
    }

Read Group Stats

Description

Displays the load statistics for this node group. Edge statistics is gathered via the reports received through origin, whereas the origin statistics are directly evaluated by streammanager.

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/{groupName}/stats?accessToken=<accessToken>
  • Method: GET

RESPONSE

  • Failure: HTTP CODE 400 or 404
  • DATA:

    {
      "errorMessage": "<error-message-string>",
      "timestamp": <error-timestamp>
    }
  • Success: HTTP CODE 200
  • Data:

    {
      "totalConnections": <total-group-connections>,
      "targetTypeLoadSummary": [
        {
          "type": "<role>",
          "totalNodeCount": <total-node-count>,
          "totalActiveNodeCount": <total-active-nodes>,
          "netConnectionCapacity": <total-available-capacity>,
          "netConnectionLoad": <total-connection-load>
        }
      ]
    }

Example

REQUEST

  • URI: http://{host}:{port}/streammanager/api/2.0/admin/nodegroup/group-8bcc96ed-b7e5-4044-b797-1bc93d5f0be4/stats?accessToken=xyz123
  • Method: GET

RESPONSE

  • Success: HTTP CODE 200
  • Data:

    {
      "totalConnections": 0,
      "targetTypeLoadSummary": [
        {
          "type": "origin",
          "totalNodeCount": 1,
          "totalActiveNodeCount": 1,
          "netConnectionCapacity": 5,
          "netConnectionLoad": 0
        },
        {
          "type": "edge",
          "totalNodeCount": 1,
          "totalActiveNodeCount": 0,
          "netConnectionCapacity": 30,
          "netConnectionLoad": 0
        }
      ]
    }