Stock alert using Node-RED

stock_alert.json

[
    {
        "id": "bbd65f58de8fc93e",
        "type": "group",
        "z": "5501e19c.72a0c",
        "name": "Coral USB",
        "style": {
            "label": true
        },
        "nodes": [
            "a3d0c7f4a380c7aa",
            "3dff10cd666dd772",
            "e5b9c08c3a869382",
            "4935a2bcac54b0c0",
            "9c1592a0b33f06c1",
            "4a159d76e74d944c"
        ],
        "x": 94,
        "y": 659,
        "w": 1372,
        "h": 82
    },
    {
        "id": "a3d0c7f4a380c7aa",
        "type": "http request",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "method": "GET",
        "ret": "txt",
        "paytoqs": "ignore",
        "url": "https://www.example.com/coral-usb",
        "tls": "",
        "persist": false,
        "proxy": "",
        "authType": "",
        "senderr": false,
        "credentials": {
            "user": "",
            "password": ""
        },
        "x": 430,
        "y": 700,
        "wires": [
            [
                "9c1592a0b33f06c1"
            ]
        ]
    },
    {
        "id": "3dff10cd666dd772",
        "type": "switch",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "property": "payload",
        "propertyType": "msg",
        "rules": [
            {
                "t": "cont",
                "v": "<div class=\"out-of-stock stock\">",
                "vt": "str"
            },
            {
                "t": "else"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 2,
        "x": 850,
        "y": 700,
        "wires": [
            [],
            [
                "4935a2bcac54b0c0"
            ]
        ]
    },
    {
        "id": "e5b9c08c3a869382",
        "type": "api-call-service",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "server": "20327e2.7052382",
        "version": 5,
        "debugenabled": false,
        "domain": "notify",
        "service": "telegram_me",
        "areaId": [],
        "deviceId": [],
        "entityId": [],
        "data": "{\"message\":\"Seed Coral USB is back in stock https://example.com...\"}",
        "dataType": "json",
        "mergeContext": "",
        "mustacheAltTags": false,
        "outputProperties": [],
        "queue": "none",
        "x": 1340,
        "y": 700,
        "wires": [
            []
        ]
    },
    {
        "id": "4935a2bcac54b0c0",
        "type": "trigger",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "op1": "1",
        "op2": "0",
        "op1type": "num",
        "op2type": "str",
        "duration": "-10",
        "extend": false,
        "overrideDelay": false,
        "units": "min",
        "reset": "",
        "bytopic": "all",
        "topic": "topic",
        "outputs": 1,
        "x": 1070,
        "y": 700,
        "wires": [
            [
                "e5b9c08c3a869382"
            ]
        ]
    },
    {
        "id": "9c1592a0b33f06c1",
        "type": "switch",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "property": "statusCode",
        "propertyType": "msg",
        "rules": [
            {
                "t": "eq",
                "v": "200",
                "vt": "num"
            }
        ],
        "checkall": "true",
        "repair": false,
        "outputs": 1,
        "x": 650,
        "y": 700,
        "wires": [
            [
                "3dff10cd666dd772"
            ]
        ]
    },
    {
        "id": "4a159d76e74d944c",
        "type": "inject",
        "z": "5501e19c.72a0c",
        "g": "bbd65f58de8fc93e",
        "name": "",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "600",
        "crontab": "",
        "once": true,
        "onceDelay": "10",
        "topic": "",
        "payload": "",
        "payloadType": "date",
        "x": 210,
        "y": 700,
        "wires": [
            [
                "a3d0c7f4a380c7aa"
            ]
        ]
    },
    {
        "id": "20327e2.7052382",
        "type": "server",
        "name": "Home Assistant",
        "version": 2,
        "addon": true,
        "rejectUnauthorizedCerts": true,
        "ha_boolean": "y|yes|true|on|home|open",
        "connectionDelay": true,
        "cacheJson": true,
        "heartbeat": false,
        "heartbeatInterval": 30
    }
]