/api/tree/branch

A branch represents a level in the tree heirarchy and contains information about child branches and/or leaves. Branches are immutable from an API perspective and can only be created or modified by processing a TSMeta through tree rules via a CLI command or when a new timeseries is encountered or a TSMeta object modified. Therefore the branch endpoint only supports the GET verb.

A branch is identified by a branchId, a hexadecimal encoded string that represents the ID of the tree it belongs to as well as the IDs of each parent the branch stems from. All branches stem from the ROOT branch of a tree and this is usually the starting place when browsing. To fetch the ROOT just call this endpoingt with a valid treeId. The root branch ID is also a 4 character encoding of the tree ID.

Verbs

• GET

Requests

The following fields can be used to request a branch. Only one or the other may be used.

Name	Data Type	Required	Description	Default	QS	RW	Example
treeId	Integer	Optional	Used to fetch the root branch of the tree. If used in combination with a branchId, the tree ID will be ignored.		treeid	RO	1
branch	String	Required	A hexadecimal representation of the branch ID, required for all but the root branch request		branch	RO	000183A21C8F

Response

A successful response to a request will return the branch object using the requested serializer. If the requested tree or branch did not exist in the system, a 404 will be returned with an error message.

Fields returned with the response include:

Name	Data Type	Description	Example
treeId	Integer	The ID of the tree the branch belongs to	1
displayName	String	Name of the branch as determined by the rule set	sys
branchId	String	Hexadecimal encoded ID of the branch	00010001BECD
depth	Integer	Depth of the branch within the tree, starting at 0 for the root branch	1
path	Map	List of parent branch names and their depth.	See Below
branches	Array	An array of child branch objects. May be null.	See Below
leaves	Array	An array of child leaf objects. May be null.	See Leaves Below

Leaves

If a branch contains child leaves, i.e. timeseries stored in OpenTSDB, their metric, tags, TSUID and display name will be contained in the results. Leaf fields are as follows:

Name	Data Type	Description	Example
metric	String	The name of the metric for the timeseries	sys.cpu.0
tags	Map	A list of tag names and values representing the timeseries	See Below
tsuid	String	Hexadecimal encoded timeseries ID	000001000001000001
displayName	String	A name as parsed by the rule set	user

GET

Example Root GET Query

http://localhost:4242/api/tree/branch?treeid=1

Example Response

{
    "leaves": null,
    "branches": [
        {
            "leaves": null,
            "branches": null,
            "path": {
                "0": "ROOT",
                "1": "sys"
            },
            "treeId": 1,
            "displayName": "sys",
            "branchId": "00010001BECD",
            "depth": 1
        }
    ],
    "path": {
        "0": "ROOT"
    },
    "treeId": 1,
    "displayName": "ROOT",
    "branchId": "0001",
    "depth": 0
}

Example Branch GET Query

http://localhost:4242/api/tree/branch?branchid=00010001BECD000181A8

Example Response

{
    "leaves": [
        {
            "metric": "sys.cpu.0.user",
            "tags": {
                "host": "web01"
            },
            "tsuid": "000001000001000001",
            "displayName": "user"
        }
    ],
    "branches": [
        {
            "leaves": null,
            "branches": null,
            "path": {
                "0": "ROOT",
                "1": "sys",
                "2": "cpu",
                "3": "mboard"
            },
            "treeId": 1,
            "displayName": "mboard",
            "branchId": "00010001BECD000181A8BF992A99",
            "depth": 3
        }
    ],
    "path": {
        "0": "ROOT",
        "1": "sys",
        "2": "cpu"
    },
    "treeId": 1,
    "displayName": "cpu",
    "branchId": "00010001BECD000181A8",
    "depth": 2
}