8. Sample codes     

curl -d "secret=input_your_secret&pbtoken=input_your_token&order=1234567890&payment_method=X&product_name=Product+Test+(1+license)&customer_name=José+da+Silva&customer_taxid=91051605962&customer_email=josedasilva@myemail.com.br&customer_phone=11+3328.9999&address_street=Av.Paulista,+100&address_zip=01311100&address_city=São+Paulo&address_state=SP&amount_brl=39.50" -X POST "https://sandbox.pagbrasil.com/api/order/add"

<?php

$servidor = "https://sandbox.pagbrasil.com/api/order/add";

$content = http_build_query(
	array(
		"secret"         => 'input_your_secret',
		"pbtoken"        => 'input_your_token',
		"order"          => '1234567890',
		"payment_method" => 'X',
		"product_name"   => 'Product Test (1 license)',
		"customer_name"  => 'José da Silva',
		"customer_taxid" => '91051605962',
		"customer_email" => 'josedasilva@myemail.com.br',
		"customer_phone" => '11 3328.9999',
		"address_street" => 'Av.Paulista, 100',
		"address_zip"    => '01311100',
		"address_city"   => 'São Paulo',
		"address_state"  => 'SP',
		"amount_brl"     => '39.50'
	)
);

$context = stream_context_create(array( 
	'http' => array( 
		'method' => 'POST', 
		'header' => "Connection: close\r\n". 
		            "Content-type: application/x-www-form-urlencoded\r\n". 
		            "Content-Length: ".strlen($content)."\r\n", 
		'content' => $content 
	)
));

$contents = file_get_contents($servidor, null, $context);

?>

using System.Net;
using System.Collections.Specialized;

using (var client = new WebClient()) {
	var values = new NameValueCollection();
	values["secret"]          = "input_your_secret";
	values["pbtoken"]         = "input_your_token";
	values["order"]           = "1234567890";
	values["payment_method"]  = "X";
	values["product_name"]    = "Product Test (1 license)";
	values["customer_name"]   = "José da Silva";
	values["customer_taxid"]  = "91051605962";
	values["customer_email"]  = "josedasilva@myemail.com.br";
	values["customer_phone"]  = "11 3328.9999";
	values["address_street"]  = "Av.Paulista, 100";
	values["address_zip"]     = "01311100";
	values["address_city"]    = "São Paulo";
	values["address_state"]   = "SP";
	values["amount_brl"]      = "39.50";

	var response = client.UploadValues("https://sandbox.pagbrasil.com/api/order/add", values);

	var responseString = Encoding.Default.GetString(response);
}

var request = require('request');

request({
	url: 'https://sandbox.pagbrasil.com/api/order/add',
	method: 'POST',
	form: {
		secret: 'input_your_secret',
		pbtoken: 'input_your_token',
		order: '1234567890',
		payment_method: 'X',
		product_name: 'Product Test (1 license)',
		customer_name: 'José da Silva',
		customer_taxid: '91051605962',
		customer_email: 'josedasilva@myemail.com.br',
		customer_phone: '11 3328.9999',
		address_street: 'Av.Paulista, 100',
		address_zip: '01311100',
		address_city: 'São Paulo',
		address_state: 'SP',
		amount_brl: '39.50'
	}},

	function (error, response, body) {
		if (!error && response.statusCode == 200) {
			console.log(body);
		}
	}
);

<?xml version="1.0" encoding="ISO-8859-1"?>
 <request>
 <order>1234567890</order>
 <payment_method>X</payment_method>
 <submission_date>10/12/2010</submission_date>
 <expiration_date>10/12/2010</expiration_date>
 <expiration_time>23:59</expiration_time>
 <pix_image>https://pagbrasil.com/x/img?i174bwzjqc</pix_image>
 <pix_code>9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999</pix_code>
 <order_status>WP</order_status>
 <product_name>Product Test (1 license)</product_name>
 <customer_name>José da Silva</customer_name>
 <customer_taxid>91051605962</customer_taxid>
 <customer_email>josedasilva@myemail.com.br</customer_email>
 <customer_phone>11 3328.9999</customer_phone>
 <address_street>Av.Paulista, 100</address_street>
 <address_zip>01311100</address_zip>
 <address_city>São Paulo</address_city>
 <address_state>SP</address_state>
 <amount_brl>39.50</amount_brl>
 <signature>6249e00561538b47e6fb243bf70d7bcb</signature>
 </request>