curl --request POST \
  --url https://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "effective_date": "2026-01-01"
}
'

import requests

url = "https://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate"

payload = { "effective_date": "2026-01-01" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({effective_date: '2026-01-01'})
};

fetch('https://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate', 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://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'effective_date' => '2026-01-01'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate"

	payload := strings.NewReader("{\n  \"effective_date\": \"2026-01-01\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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.post("https://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"effective_date\": \"2026-01-01\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox.nmbr.co/services/payroll/form_types/{form_type}/populate")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"effective_date\": \"2026-01-01\"\n}"

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

{
  "id": "<id>",
  "object": "form_population_result",
  "data": {
    "fields": {
      "block_8_social_insurance_number": "196710156",
      "employee_first_name": "Marley",
      "employee_last_name": "Prosacco",
      "employee_address_line_1": "Angelina Ridge",
      "employee_address_line_2": "Toronto",
      "employee_address_line_3": "ON CA",
      "employee_postal_code": "M1M1M1",
      "block_5_cra_payroll_account_number": "136549169RP9916",
      "contact_area_code": 111,
      "contact_phone_number": 2223333,
      "contact_phone_number_extension": null,
      "contact_first_name": "Jean",
      "contact_last_name": "Smith",
      "block_10_first_day_worked": "2026-01-01",
      "block_11_last_day_for_which_paid": "2026-01-31",
      "block_6_pay_period_type": "M",
      "block_12_final_pay_period_ending_date": "2026-01-31",
      "block_15_total_insurable_hours": "0",
      "pp1_insurable_earnings": 0
    }
  }
}