curl --request POST \
  --url https://api.vollna.com/v1/proposal-templates/{id}/duplicate \
  --header 'Content-Type: application/json' \
  --header 'X-API-TOKEN: <api-key>' \
  --data '
{
  "name": "<string>"
}
'

import requests

url = "https://api.vollna.com/v1/proposal-templates/{id}/duplicate"

payload = { "name": "<string>" }
headers = {
    "X-API-TOKEN": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-TOKEN': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({name: '<string>'})
};

fetch('https://api.vollna.com/v1/proposal-templates/{id}/duplicate', 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.vollna.com/v1/proposal-templates/{id}/duplicate",
  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([
    'name' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-TOKEN: <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.vollna.com/v1/proposal-templates/{id}/duplicate"

	payload := strings.NewReader("{\n  \"name\": \"<string>\"\n}")

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

	req.Header.Add("X-API-TOKEN", "<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.post("https://api.vollna.com/v1/proposal-templates/{id}/duplicate")
  .header("X-API-TOKEN", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"name\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.vollna.com/v1/proposal-templates/{id}/duplicate")

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

request = Net::HTTP::Post.new(url)
request["X-API-TOKEN"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"name\": \"<string>\"\n}"

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

{
  "data": {
    "id": 123,
    "name": "Web development",
    "visibility": "shared_admins",
    "sender": {
      "name": "John Smith",
      "type": "agency",
      "organization": "Acme Agency LLC"
    },
    "hourly_rate": {
      "mode": "smart",
      "rate": 50,
      "smart_rate_min": 25,
      "smart_rate_max": 120,
      "smart_rate_percent": 98,
      "rules_count": 0,
      "increase_percent": null,
      "increase_frequency": "never",
      "rules": [
        {
          "from": 1,
          "rate_type": "fixed",
          "value": 123,
          "to": 123
        }
      ]
    },
    "fixed_price": {
      "type": "by-job-terms",
      "price": 123,
      "min_price": 123,
      "client_budget_percent": 123
    },
    "ai": {
      "model": "gemini-3.6-flash",
      "instructions": "Write like a human",
      "client_questions": "Answer briefly",
      "additional_context": "<string>",
      "template_structure": true
    },
    "filters": [
      {
        "id": 123,
        "name": "<string>"
      }
    ],
    "auto_bidding_setups": [
      {
        "id": 123,
        "name": "<string>"
      }
    ],
    "ab_testing": true,
    "answers": [
      {
        "question": "Availability?",
        "answer": "Full time",
        "match_type": "exact"
      }
    ],
    "attachments": [
      {
        "uid": "9f1c2ab34de56f7890ab12cd34ef56ab",
        "name": "portfolio.pdf",
        "mime_type": "application/pdf",
        "size_bytes": 245760
      }
    ],
    "cover_letters": {
      "variant_a": "Hi, I build web apps with Symfony and React...",
      "variant_b": "<string>"
    },
    "created_at": "2026-08-26T10:00:00+00:00",
    "updated_at": "2026-08-26T10:00:00+00:00"
  }
}

{
  "error": "Validation failed",
  "message": "<string>",
  "fields": {}
}

{
  "error": "<string>"
}

{
  "error": "<string>"
}

{
  "error": "Validation failed",
  "message": "<string>",
  "fields": {}
}

{
  "error": "Validation failed",
  "message": "<string>",
  "fields": {}
}

{
  "error": "<string>"
}