curl --location --request POST 'https://api.getmetal.io/v1/index/bulk' \
--header 'Content-Type: application/json' \
--header 'x-metal-api-key: <api-key>' \
--header 'x-metal-client-id: <client-id>' \
--data-raw '{
    "data": [
        {
            "index": "index-id",
            "text": "Ozzy is the best vocalist of all time",
            "id": "my-unique-id1",
            "metadata": {
                "band": "Black Sabbath",
                "year": 1970
            }
        },
        {
            "index": "index-id",
            "text": "Dave Mustain disagrees",
            "id": "my-unique-id2",
            "metadata": {
                "band": "Megadeth",
                "year": 1983

            }
        }
    ]
}'

{
	"data": {
		"ids": [
			"my-unique-id1",
			"my-unique-id2"
		]
	}
}