curl --request POST \
  --url https://app.wazobiamail.com/api/v1/sending/messages \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "envelopeSender": "hello@mail.example.com",
  "content": {
    "from": "Example Store <hello@mail.example.com>",
    "subject": "Your receipt",
    "htmlBody": "<p>Thanks for your order.</p>",
    "textBody": "Thanks for your order.",
    "replyTo": "Support <support@mail.example.com>"
  },
  "to": [
    "customer@example.com"
  ],
  "cc": [
    "jsmith@example.com"
  ],
  "bcc": [
    "jsmith@example.com"
  ]
}
'

import requests

url = "https://app.wazobiamail.com/api/v1/sending/messages"

payload = {
    "envelopeSender": "hello@mail.example.com",
    "content": {
        "from": "Example Store <hello@mail.example.com>",
        "subject": "Your receipt",
        "htmlBody": "<p>Thanks for your order.</p>",
        "textBody": "Thanks for your order.",
        "replyTo": "Support <support@mail.example.com>"
    },
    "to": ["customer@example.com"],
    "cc": ["jsmith@example.com"],
    "bcc": ["jsmith@example.com"]
}
headers = {
    "X-API-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'X-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    envelopeSender: 'hello@mail.example.com',
    content: {
      from: 'Example Store <hello@mail.example.com>',
      subject: 'Your receipt',
      htmlBody: '<p>Thanks for your order.</p>',
      textBody: 'Thanks for your order.',
      replyTo: 'Support <support@mail.example.com>'
    },
    to: ['customer@example.com'],
    cc: ['jsmith@example.com'],
    bcc: ['jsmith@example.com']
  })
};

fetch('https://app.wazobiamail.com/api/v1/sending/messages', 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://app.wazobiamail.com/api/v1/sending/messages",
  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([
    'envelopeSender' => 'hello@mail.example.com',
    'content' => [
        'from' => 'Example Store <hello@mail.example.com>',
        'subject' => 'Your receipt',
        'htmlBody' => '<p>Thanks for your order.</p>',
        'textBody' => 'Thanks for your order.',
        'replyTo' => 'Support <support@mail.example.com>'
    ],
    'to' => [
        'customer@example.com'
    ],
    'cc' => [
        'jsmith@example.com'
    ],
    'bcc' => [
        'jsmith@example.com'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "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://app.wazobiamail.com/api/v1/sending/messages"

	payload := strings.NewReader("{\n  \"envelopeSender\": \"hello@mail.example.com\",\n  \"content\": {\n    \"from\": \"Example Store <hello@mail.example.com>\",\n    \"subject\": \"Your receipt\",\n    \"htmlBody\": \"<p>Thanks for your order.</p>\",\n    \"textBody\": \"Thanks for your order.\",\n    \"replyTo\": \"Support <support@mail.example.com>\"\n  },\n  \"to\": [\n    \"customer@example.com\"\n  ],\n  \"cc\": [\n    \"jsmith@example.com\"\n  ],\n  \"bcc\": [\n    \"jsmith@example.com\"\n  ]\n}")

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

	req.Header.Add("X-API-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.post("https://app.wazobiamail.com/api/v1/sending/messages")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"envelopeSender\": \"hello@mail.example.com\",\n  \"content\": {\n    \"from\": \"Example Store <hello@mail.example.com>\",\n    \"subject\": \"Your receipt\",\n    \"htmlBody\": \"<p>Thanks for your order.</p>\",\n    \"textBody\": \"Thanks for your order.\",\n    \"replyTo\": \"Support <support@mail.example.com>\"\n  },\n  \"to\": [\n    \"customer@example.com\"\n  ],\n  \"cc\": [\n    \"jsmith@example.com\"\n  ],\n  \"bcc\": [\n    \"jsmith@example.com\"\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://app.wazobiamail.com/api/v1/sending/messages")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"envelopeSender\": \"hello@mail.example.com\",\n  \"content\": {\n    \"from\": \"Example Store <hello@mail.example.com>\",\n    \"subject\": \"Your receipt\",\n    \"htmlBody\": \"<p>Thanks for your order.</p>\",\n    \"textBody\": \"Thanks for your order.\",\n    \"replyTo\": \"Support <support@mail.example.com>\"\n  },\n  \"to\": [\n    \"customer@example.com\"\n  ],\n  \"cc\": [\n    \"jsmith@example.com\"\n  ],\n  \"bcc\": [\n    \"jsmith@example.com\"\n  ]\n}"

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

{
  "success": true,
  "message": "Done",
  "data": "<unknown>"
}

{
  "success": true,
  "message": "Done",
  "data": "<unknown>"
}