curl --request POST \
  --url https://tracer.sandbox.lerian.net/v1/rules \
  --header 'Content-Type: <content-type>' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "name": "Block high-value transactions",
  "description": "Deny transactions above BRL 10,000 for card payments",
  "expression": "amount > 1000000",
  "action": "DENY",
  "scopes": [
    {
      "transactionType": "CARD"
    }
  ]
}
'

import requests

url = "https://tracer.sandbox.lerian.net/v1/rules"

payload = {
    "name": "Block high-value transactions",
    "description": "Deny transactions above BRL 10,000 for card payments",
    "expression": "amount > 1000000",
    "action": "DENY",
    "scopes": [{ "transactionType": "CARD" }]
}
headers = {
    "Content-Type": "<content-type>",
    "X-API-Key": "<api-key>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': '<content-type>', 'X-API-Key': '<api-key>'},
  body: JSON.stringify({
    name: 'Block high-value transactions',
    description: 'Deny transactions above BRL 10,000 for card payments',
    expression: 'amount > 1000000',
    action: 'DENY',
    scopes: [{transactionType: 'CARD'}]
  })
};

fetch('https://tracer.sandbox.lerian.net/v1/rules', 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://tracer.sandbox.lerian.net/v1/rules",
  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' => 'Block high-value transactions',
    'description' => 'Deny transactions above BRL 10,000 for card payments',
    'expression' => 'amount > 1000000',
    'action' => 'DENY',
    'scopes' => [
        [
                'transactionType' => 'CARD'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: <content-type>",
    "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://tracer.sandbox.lerian.net/v1/rules"

	payload := strings.NewReader("{\n  \"name\": \"Block high-value transactions\",\n  \"description\": \"Deny transactions above BRL 10,000 for card payments\",\n  \"expression\": \"amount > 1000000\",\n  \"action\": \"DENY\",\n  \"scopes\": [\n    {\n      \"transactionType\": \"CARD\"\n    }\n  ]\n}")

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

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("X-API-Key", "<api-key>")

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

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

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://tracer.sandbox.lerian.net/v1/rules")
  .header("Content-Type", "<content-type>")
  .header("X-API-Key", "<api-key>")
  .body("{\n  \"name\": \"Block high-value transactions\",\n  \"description\": \"Deny transactions above BRL 10,000 for card payments\",\n  \"expression\": \"amount > 1000000\",\n  \"action\": \"DENY\",\n  \"scopes\": [\n    {\n      \"transactionType\": \"CARD\"\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://tracer.sandbox.lerian.net/v1/rules")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = '<content-type>'
request["X-API-Key"] = '<api-key>'
request.body = "{\n  \"name\": \"Block high-value transactions\",\n  \"description\": \"Deny transactions above BRL 10,000 for card payments\",\n  \"expression\": \"amount > 1000000\",\n  \"action\": \"DENY\",\n  \"scopes\": [\n    {\n      \"transactionType\": \"CARD\"\n    }\n  ]\n}"

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