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Get Link's Metrics History

Retrieves link's metric history.

Request

HTTP Request

GET /node/api/links/:id/history

Permissions

linkPermissions

Path parameters

Parameter Type Description
id String
required		 The ID of a link whose metrics history should be retrieved.

Query parameters

Parameter Type Description
metrics String
required		 A comma-separated list of metrics to be retrieved.
from String
required		 A lower-bound timestamp of metrics' values.
downsample String
optional		 A down-sampling parameter. For example, 1m-avg or 1h-avg denote
"one minute average" and "one hour average" accordingly.
timezone String
optional		 A timezone of metrics' values. For example, Europe/Moscow. Use this parameter if a server's timezone doesn't match your local one and you need to get metrics without time shift.
to String
optional		 An upper-bound timestamp of metrics' values.

Request body

The request body is empty.

Response

Returns an array of requested metrics. Each metric contains the following fields:

Field Type Description
metric String Metric name.
tags.entity String The ID of the entity prefixed by the type of the entity. The format is objectxxx for objects and linkxxx for links.
aggregateTags Array Work In Progress
dps Array An array of data points. Contains a timestamp and a value.

Info

To get all available metrics for a link, use the Get Link Stat Metrics method.

Example

Request

login=<...>
password=<...>
saymon_hostname=<...>
link_id=<...>
url=https://$saymon_hostname/node/api/links/$link_id/history

curl -X GET $url -u $login:$password -G \
    --data-urlencode "metrics=packetsTransmitted,packetsReceived" \
    --data-urlencode "from=1580906276000"

let login = <...>
let password = <...>
let saymonHostname = <...>
let linkId = <...>

let queryParams = "metrics=packetsTransmitted,packetsReceived" +
    "&" + "from=1580906276000";

let path = "/node/api/links/" + linkId + "/history" + "?" + queryParams;
let auth = "Basic " + btoa(login + ":" + password);

let headers = new Headers();
headers.append("Authorization", auth);

let requestOptions = {
    method: "GET",
    headers: headers
};

fetch(saymonHostname + path, requestOptions)
    .then(response => response.text())
    .then(result => console.log(result))
    .catch(error => console.log("error", error));

const http = require("http");
const querystring = require("querystring");

let login = <...>
let password = <...>
let saymonHostname = <...>
let linkId = <...>

let queryParams = querystring.stringify({
    metrics : "packetsTransmitted,packetsReceived",
    from : "1580906276000"
});

let path = "/node/api/links/" + linkId + "/history" + "?" + queryParams;
let auth = "Basic " + Buffer.from(login + ":" + password).toString("base64");

let options = {
    "method": "GET",
    "hostname": saymonHostname,
    "headers": {
        "Authorization": auth
    },
    "path": path
};

let req = http.request(options, function (res) {
    let chunks = [];

    res.on("data", function (chunk) {
        chunks.push(chunk);
    });

    res.on("end", function (chunk) {
        let body = Buffer.concat(chunks);
        console.log(body.toString());
    });

    res.on("error", function (error) {
        console.error(error);
    });
});

req.end();

import requests

login = <...>
password = <...>
saymon_hostname = <...>
link_id = <...>
url = "https://" + saymon_hostname + "/node/api/links/" + \
    link_id + "/history"

params = {
    "metrics": "packetsTransmitted,packetsReceived",
    "from": "1580906276000"
}

response = requests.request("GET", url, auth=(login, password), params=params)
print(response.text)

Response

[
    {
        "metric": "packetsTransmitted",
        "tags": {
            "entity": "link5e7df795f988c426bb37215e"
        },
        "aggregateTags": [],
        "dps": [
            [
                1662121832050,
                4
            ],
            [
                1662121839385,
                4
            ]
                ...
        ]
    },
    {
        "metric": "packetsReceived",
        "tags": {
            "entity": "link5e7df795f988c426bb37215e"
        },
        "aggregateTags": [],
        "dps": [
            [
                1662121832050,
                4
            ],
            [
                1662121839385,
                4
            ]
                ...
        ]
    }
]

See Also