Moving On from SparkPost?

require 'uri'
require 'net/http'
url = URI("https://api.pepipost.com/v2/sendEmail")
http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

http.verify_mode = OpenSSL::SSL::VERIFY_NONE
request = Net::HTTP::Post.new(url)
request["content-type"] = 'application/json'
request["api_key"] = ''
request.body = "{\"personalizations\":[{\"recipient\":\"user@example.com\"}],\"from\":{\"fromEmail\":\"sales@yourdomain.com\",\"fromName\":\"MyCompany\"},\"subject\":\"Test email from Pepipost\",\"content\":\"Hi, This is my first test mail\",}"
response = http.request(request)
puts response.read_body

var http = require("https");

var options = {
  "method": "POST",
  "hostname": "api.pepipost.com",
  "port": null,
  "path": "/v2/sendEmail",
  "headers": {
    "content-type": "application/json",
    "api_key": ""
  }
};

var req = http.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function () {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });
});

req.write(JSON.stringify({ personalizations: 
   [ { recipient: 'hi@welcom.com'} ],
  from: { fromEmail: 'xyz@yourdomain.com', fromName: 'YourCompanyName' },
  subject: 'Test email from Pepipost',
  content: 'Hi, This is my first test email',
  ));
req.end();

import http.client
conn = http.client.HTTPSConnection("api.pepipost.com")
payload = "{\"personalizations\":[{\"recipient\":\"user@example.com\"}],\"from\":{\"fromEmail\":\"sales@yourdomain.com\",\"fromName\":\"MyCompany\"},\"subject\":\"Test email from Pepipost\",\"content\":\"Hi, This is my first test mail\",}"

headers = {
    'content-type': "application/json",
    'api_key': ""
    }

conn.request("POST", "/v2/sendEmail", payload, headers)
res = conn.getresponse()
data = res.read()
print(data.decode("utf-8"))

HttpResponse response = Unirest.post("https://api.pepipost.com/v2/sendEmail")
  .header("content-type", "application/json")
  .header("api_key", "")
  .body("{\"personalizations\":[{\"recipient\":\"user@example.com\"}],\"from\":{\"fromEmail\":\"sales@yourdomain.com\",\"fromName\":\"MyCompany\"},\"subject\":\"Test email from Pepipost\",\"content\":\"Hi, This is my first test mail\",}")
  .asString();

 "https://api.pepipost.com/v2/sendEmail",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => "{\"personalizations\":[{\"recipient\":\"user@example.com\"}],\"from\":{\"fromEmail\":\"sales@yourdomain.com\",\"fromName\":\"MyCompany\"},\"subject\":\"Test email from Pepipost\",\"content\":\"Hi, This is my first test mail\",}",

  CURLOPT_HTTPHEADER => array(
   "api_key: ",
   "content-type: application/json"
 ),
));

$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);
if ($err) {
  echo "cURL Error #:" . $err;
 } else {
  echo $response;
}

curl --request POST \
  --url https://api.pepipost.com/v2/sendEmail \
  --header 'api_key: ' \
  --header 'content-type: application/json' \
  --data '{"personalizations":[{"recipient":"sampleuser@example.com"}],"from":{"fromEmail":"admin@yourdomain.com","fromName":"MyCompany"},"subject":"This is a test email","content":"Hi, this is my first test mail"}'