curl --request PUT \
  --url https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "records": [
    {
      "id": null,
      "fromCatalogRecordId": null,
      "fields": [
        {
          "smartFieldId": "550e8400-e29b-41d4-a716-446655440000",
          "value": "INV-2026-001"
        }
      ]
    }
  ]
}
'

import requests

url = "https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records"

payload = { "records": [
        {
            "id": None,
            "fromCatalogRecordId": None,
            "fields": [
                {
                    "smartFieldId": "550e8400-e29b-41d4-a716-446655440000",
                    "value": "INV-2026-001"
                }
            ]
        }
    ] }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.put(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PUT',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    records: [
      {
        id: null,
        fromCatalogRecordId: null,
        fields: [{smartFieldId: '550e8400-e29b-41d4-a716-446655440000', value: 'INV-2026-001'}]
      }
    ]
  })
};

fetch('https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PUT",
  CURLOPT_POSTFIELDS => json_encode([
    'records' => [
        [
                'id' => null,
                'fromCatalogRecordId' => null,
                'fields' => [
                                [
                                                                'smartFieldId' => '550e8400-e29b-41d4-a716-446655440000',
                                                                'value' => 'INV-2026-001'
                                ]
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records"

	payload := strings.NewReader("{\n  \"records\": [\n    {\n      \"id\": null,\n      \"fromCatalogRecordId\": null,\n      \"fields\": [\n        {\n          \"smartFieldId\": \"550e8400-e29b-41d4-a716-446655440000\",\n          \"value\": \"INV-2026-001\"\n        }\n      ]\n    }\n  ]\n}")

	req, _ := http.NewRequest("PUT", url, payload)

	req.Header.Add("x-api-key", "<api-key>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.put("https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"records\": [\n    {\n      \"id\": null,\n      \"fromCatalogRecordId\": null,\n      \"fields\": [\n        {\n          \"smartFieldId\": \"550e8400-e29b-41d4-a716-446655440000\",\n          \"value\": \"INV-2026-001\"\n        }\n      ]\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.tomorro.com/v2/custom-objects/{customObjectId}/contract/{contractId}/records")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Put.new(url)
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"records\": [\n    {\n      \"id\": null,\n      \"fromCatalogRecordId\": null,\n      \"fields\": [\n        {\n          \"smartFieldId\": \"550e8400-e29b-41d4-a716-446655440000\",\n          \"value\": \"INV-2026-001\"\n        }\n      ]\n    }\n  ]\n}"

response = http.request(request)
puts response.read_body