curl --request GET \
  --url https://api.dooki.com.br/v2/{alias}/catalog/flags \
  --header 'Content-Type: application/json' \
  --header 'User-Secret-Key: <api-key>' \
  --header 'User-Token: <api-key>' \
  --data '
{
  "active": true,
  "is_visible": true,
  "name": "Coleção 2017",
  "slug": "colecao-2017",
  "text_color": "#ffffff",
  "background_color": "#000000",
  "image_url": "https://image.com/selo.gif"
}
'

import requests

url = "https://api.dooki.com.br/v2/{alias}/catalog/flags"

payload = {
    "active": True,
    "is_visible": True,
    "name": "Coleção 2017",
    "slug": "colecao-2017",
    "text_color": "#ffffff",
    "background_color": "#000000",
    "image_url": "https://image.com/selo.gif"
}
headers = {
    "User-Token": "<api-key>",
    "User-Secret-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'GET',
  headers: {
    'User-Token': '<api-key>',
    'User-Secret-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    active: true,
    is_visible: true,
    name: 'Coleção 2017',
    slug: 'colecao-2017',
    text_color: '#ffffff',
    background_color: '#000000',
    image_url: 'https://image.com/selo.gif'
  })
};

fetch('https://api.dooki.com.br/v2/{alias}/catalog/flags', 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.dooki.com.br/v2/{alias}/catalog/flags",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_POSTFIELDS => json_encode([
    'active' => true,
    'is_visible' => true,
    'name' => 'Coleção 2017',
    'slug' => 'colecao-2017',
    'text_color' => '#ffffff',
    'background_color' => '#000000',
    'image_url' => 'https://image.com/selo.gif'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "User-Secret-Key: <api-key>",
    "User-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.dooki.com.br/v2/{alias}/catalog/flags"

	payload := strings.NewReader("{\n  \"active\": true,\n  \"is_visible\": true,\n  \"name\": \"Coleção 2017\",\n  \"slug\": \"colecao-2017\",\n  \"text_color\": \"#ffffff\",\n  \"background_color\": \"#000000\",\n  \"image_url\": \"https://image.com/selo.gif\"\n}")

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

	req.Header.Add("User-Token", "<api-key>")
	req.Header.Add("User-Secret-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.get("https://api.dooki.com.br/v2/{alias}/catalog/flags")
  .header("User-Token", "<api-key>")
  .header("User-Secret-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"active\": true,\n  \"is_visible\": true,\n  \"name\": \"Coleção 2017\",\n  \"slug\": \"colecao-2017\",\n  \"text_color\": \"#ffffff\",\n  \"background_color\": \"#000000\",\n  \"image_url\": \"https://image.com/selo.gif\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.dooki.com.br/v2/{alias}/catalog/flags")

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

request = Net::HTTP::Get.new(url)
request["User-Token"] = '<api-key>'
request["User-Secret-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"active\": true,\n  \"is_visible\": true,\n  \"name\": \"Coleção 2017\",\n  \"slug\": \"colecao-2017\",\n  \"text_color\": \"#ffffff\",\n  \"background_color\": \"#000000\",\n  \"image_url\": \"https://image.com/selo.gif\"\n}"

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

{
  "data": [
    {
      "id": 123,
      "active": true,
      "is_visible": true,
      "name": "Coleção 2017",
      "slug": "colecao-2017",
      "total_products": 123,
      "text_color": "#ffffff",
      "background_color": "#000000",
      "image_url": "https://image.com/selo.gif",
      "created_at": {
        "date": "2000-08-17 10:24:24",
        "timezone_type": 3,
        "timezone": "America/Sao_Paulo"
      },
      "updated_at": {
        "date": "2000-08-17 10:24:24",
        "timezone_type": 3,
        "timezone": "America/Sao_Paulo"
      }
    }
  ]
}