Add property

To add a property to an entity, perform the following actions:

Open entity in the end view with the button on the views panel or the same icon on the entity representation in the standard view of the parent object.
On the button panel in the top of the window press the Properties button.
Press the button in the property table header.
In the appeared row, fill in the Name, Value and Class fields.
Press the button in the corresponding row to save the new property.

REST API

You can add a property with the REST API with the corresponding requests:

You need entity ID for these requests.

Example of adding property to an object

Bash
JavaScript
NodeJS
Python

login=<...>
password=<...>
saymon_hostname=<...>
object_id=<...>
url=https://$saymon_hostname/node/api/objects/$object_id/props

curl -X POST $url -u $login:$password \
    -H "Content-Type: application/json" \
    -d @- <<EOF
{
    "name": "Property Name",
    "value": "Property Value"
}
EOF

let login = <...>
let password = <...>
let saymonHostname = <...>
let objectId = <...>
let path = "/node/api/objects/" + objectId + "/props";
let auth = "Basic " + btoa(login + ":" + password);

let headers = new Headers();
headers.append("Content-Type", "application/json");
headers.append("Authorization", auth);

let data = JSON.stringify({
    "name": "My Property",
    "value": "My Value"
});

let requestOptions = {
    method: "POST",
    headers: headers,
    body: data
};

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

const http = require("http");

let login = <...>
let password = <...>
let saymonHostname = <...>
let objectId = <...>
let path = "/node/api/objects/" + objectId + "/props";
let auth = "Basic " + Buffer.from(login + ":" + password).toString("base64");

let options = {
    "method": "POST",
    "hostname": saymonHostname,
    "headers": {
        "Authorization": auth,
        "Content-Type": "application/json"
    },
    "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);
    });
});

let data = JSON.stringify({
    "name": "Property Name",
    "value": "Property Value"
});

req.write(data);
req.end();

import requests

login = <...>
password = <...>
saymon_hostname = <...>
object_id = <...>
url = "https://" + saymon_hostname + "/node/api/objects/" + \
    object_id + "/props"

body = {
    "name": "My Property",
    "value": "My Value"
}

response = requests.request("POST", url, json=body, auth=(login, password))
print(response.text)