curl --request POST \
  --url https://api.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default \
  --header 'Authorization: Bearer <token>' \
  --header 'x-finops-version: <x-finops-version>' \
  --header 'x-organization-id: <x-organization-id>'

import requests

url = "https://api.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default"

headers = {
    "x-finops-version": "<x-finops-version>",
    "x-organization-id": "<x-organization-id>",
    "Authorization": "Bearer <token>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-finops-version': '<x-finops-version>',
    'x-organization-id': '<x-organization-id>',
    Authorization: 'Bearer <token>'
  }
};

fetch('https://api.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default', 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.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "x-finops-version: <x-finops-version>",
    "x-organization-id: <x-organization-id>"
  ],
]);

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

curl_close($curl);

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

package main

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

func main() {

	url := "https://api.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default"

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

	req.Header.Add("x-finops-version", "<x-finops-version>")
	req.Header.Add("x-organization-id", "<x-organization-id>")
	req.Header.Add("Authorization", "Bearer <token>")

	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.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default")
  .header("x-finops-version", "<x-finops-version>")
  .header("x-organization-id", "<x-organization-id>")
  .header("Authorization", "Bearer <token>")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.sandbox.tesouro.com/finops/v1/counterparts/{counterpart_id}/contacts/{contact_id}/make-default")

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

request = Net::HTTP::Post.new(url)
request["x-finops-version"] = '<x-finops-version>'
request["x-organization-id"] = '<x-organization-id>'
request["Authorization"] = 'Bearer <token>'

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

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "address": {
    "city": "New York",
    "country": "US",
    "line1": "456 Fifth Avenue",
    "postal_code": "10001",
    "line2": "<string>",
    "state": "<string>"
  },
  "counterpart_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "first_name": "Mary",
  "is_default": true,
  "last_name": "O'Brien",
  "email": "contact@example.org",
  "phone": "5551235476",
  "title": "Ms."
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "error": {
    "message": "<string>"
  }
}

{
  "detail": [
    {
      "loc": [
        "<string>"
      ],
      "msg": "<string>",
      "type": "<string>"
    }
  ]
}

{
  "error": {
    "message": "<string>"
  }
}