curl --request POST \
  --url https://api.algosmiths.com/api/v1/messages/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "<string>",
  "text": "<unknown>",
  "audio": "<unknown>",
  "contacts": [
    {
      "addresses": [
        {
          "street": "<string>",
          "city": "<string>",
          "state": "<string>",
          "zip": "<string>",
          "country": "<string>",
          "country_code": "<string>"
        }
      ],
      "birthday": "<string>",
      "emails": [
        {
          "email": "jsmith@example.com"
        }
      ],
      "name": {
        "formatted_name": "<string>",
        "first_name": "<string>",
        "last_name": "<string>",
        "middle_name": "<string>",
        "suffix": "<string>",
        "prefix": "<string>"
      },
      "org": {
        "company": "<string>",
        "department": "<string>",
        "title": "<string>"
      },
      "phones": [
        {
          "phone": "<string>"
        }
      ],
      "urls": [
        {
          "url": "<string>"
        }
      ]
    }
  ],
  "document": {
    "id": "<string>",
    "link": "<string>",
    "caption": "<string>",
    "filename": "<string>"
  },
  "image": {
    "id": "<string>",
    "link": "<string>",
    "caption": "<string>"
  },
  "sticker": {
    "id": "<string>",
    "link": "<string>"
  },
  "video": {
    "id": "<string>",
    "link": "<string>",
    "caption": "<string>"
  },
  "reply_to_wamid": "<string>",
  "whatsapp_business_account_id": 123,
  "phone_number": 123
}
'

import requests

url = "https://api.algosmiths.com/api/v1/messages/"

payload = {
    "to": "<string>",
    "text": "<unknown>",
    "audio": "<unknown>",
    "contacts": [
        {
            "addresses": [
                {
                    "street": "<string>",
                    "city": "<string>",
                    "state": "<string>",
                    "zip": "<string>",
                    "country": "<string>",
                    "country_code": "<string>"
                }
            ],
            "birthday": "<string>",
            "emails": [{ "email": "jsmith@example.com" }],
            "name": {
                "formatted_name": "<string>",
                "first_name": "<string>",
                "last_name": "<string>",
                "middle_name": "<string>",
                "suffix": "<string>",
                "prefix": "<string>"
            },
            "org": {
                "company": "<string>",
                "department": "<string>",
                "title": "<string>"
            },
            "phones": [{ "phone": "<string>" }],
            "urls": [{ "url": "<string>" }]
        }
    ],
    "document": {
        "id": "<string>",
        "link": "<string>",
        "caption": "<string>",
        "filename": "<string>"
    },
    "image": {
        "id": "<string>",
        "link": "<string>",
        "caption": "<string>"
    },
    "sticker": {
        "id": "<string>",
        "link": "<string>"
    },
    "video": {
        "id": "<string>",
        "link": "<string>",
        "caption": "<string>"
    },
    "reply_to_wamid": "<string>",
    "whatsapp_business_account_id": 123,
    "phone_number": 123
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    to: '<string>',
    text: '<unknown>',
    audio: '<unknown>',
    contacts: [
      {
        addresses: [
          {
            street: '<string>',
            city: '<string>',
            state: '<string>',
            zip: '<string>',
            country: '<string>',
            country_code: '<string>'
          }
        ],
        birthday: '<string>',
        emails: [{email: 'jsmith@example.com'}],
        name: {
          formatted_name: '<string>',
          first_name: '<string>',
          last_name: '<string>',
          middle_name: '<string>',
          suffix: '<string>',
          prefix: '<string>'
        },
        org: {company: '<string>', department: '<string>', title: '<string>'},
        phones: [{phone: '<string>'}],
        urls: [{url: '<string>'}]
      }
    ],
    document: {id: '<string>', link: '<string>', caption: '<string>', filename: '<string>'},
    image: {id: '<string>', link: '<string>', caption: '<string>'},
    sticker: {id: '<string>', link: '<string>'},
    video: {id: '<string>', link: '<string>', caption: '<string>'},
    reply_to_wamid: '<string>',
    whatsapp_business_account_id: 123,
    phone_number: 123
  })
};

fetch('https://api.algosmiths.com/api/v1/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://api.algosmiths.com/api/v1/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([
    'to' => '<string>',
    'text' => '<unknown>',
    'audio' => '<unknown>',
    'contacts' => [
        [
                'addresses' => [
                                [
                                                                'street' => '<string>',
                                                                'city' => '<string>',
                                                                'state' => '<string>',
                                                                'zip' => '<string>',
                                                                'country' => '<string>',
                                                                'country_code' => '<string>'
                                ]
                ],
                'birthday' => '<string>',
                'emails' => [
                                [
                                                                'email' => 'jsmith@example.com'
                                ]
                ],
                'name' => [
                                'formatted_name' => '<string>',
                                'first_name' => '<string>',
                                'last_name' => '<string>',
                                'middle_name' => '<string>',
                                'suffix' => '<string>',
                                'prefix' => '<string>'
                ],
                'org' => [
                                'company' => '<string>',
                                'department' => '<string>',
                                'title' => '<string>'
                ],
                'phones' => [
                                [
                                                                'phone' => '<string>'
                                ]
                ],
                'urls' => [
                                [
                                                                'url' => '<string>'
                                ]
                ]
        ]
    ],
    'document' => [
        'id' => '<string>',
        'link' => '<string>',
        'caption' => '<string>',
        'filename' => '<string>'
    ],
    'image' => [
        'id' => '<string>',
        'link' => '<string>',
        'caption' => '<string>'
    ],
    'sticker' => [
        'id' => '<string>',
        'link' => '<string>'
    ],
    'video' => [
        'id' => '<string>',
        'link' => '<string>',
        'caption' => '<string>'
    ],
    'reply_to_wamid' => '<string>',
    'whatsapp_business_account_id' => 123,
    'phone_number' => 123
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://api.algosmiths.com/api/v1/messages/"

	payload := strings.NewReader("{\n  \"to\": \"<string>\",\n  \"text\": \"<unknown>\",\n  \"audio\": \"<unknown>\",\n  \"contacts\": [\n    {\n      \"addresses\": [\n        {\n          \"street\": \"<string>\",\n          \"city\": \"<string>\",\n          \"state\": \"<string>\",\n          \"zip\": \"<string>\",\n          \"country\": \"<string>\",\n          \"country_code\": \"<string>\"\n        }\n      ],\n      \"birthday\": \"<string>\",\n      \"emails\": [\n        {\n          \"email\": \"jsmith@example.com\"\n        }\n      ],\n      \"name\": {\n        \"formatted_name\": \"<string>\",\n        \"first_name\": \"<string>\",\n        \"last_name\": \"<string>\",\n        \"middle_name\": \"<string>\",\n        \"suffix\": \"<string>\",\n        \"prefix\": \"<string>\"\n      },\n      \"org\": {\n        \"company\": \"<string>\",\n        \"department\": \"<string>\",\n        \"title\": \"<string>\"\n      },\n      \"phones\": [\n        {\n          \"phone\": \"<string>\"\n        }\n      ],\n      \"urls\": [\n        {\n          \"url\": \"<string>\"\n        }\n      ]\n    }\n  ],\n  \"document\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\",\n    \"filename\": \"<string>\"\n  },\n  \"image\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"sticker\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\"\n  },\n  \"video\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"reply_to_wamid\": \"<string>\",\n  \"whatsapp_business_account_id\": 123,\n  \"phone_number\": 123\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://api.algosmiths.com/api/v1/messages/")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"to\": \"<string>\",\n  \"text\": \"<unknown>\",\n  \"audio\": \"<unknown>\",\n  \"contacts\": [\n    {\n      \"addresses\": [\n        {\n          \"street\": \"<string>\",\n          \"city\": \"<string>\",\n          \"state\": \"<string>\",\n          \"zip\": \"<string>\",\n          \"country\": \"<string>\",\n          \"country_code\": \"<string>\"\n        }\n      ],\n      \"birthday\": \"<string>\",\n      \"emails\": [\n        {\n          \"email\": \"jsmith@example.com\"\n        }\n      ],\n      \"name\": {\n        \"formatted_name\": \"<string>\",\n        \"first_name\": \"<string>\",\n        \"last_name\": \"<string>\",\n        \"middle_name\": \"<string>\",\n        \"suffix\": \"<string>\",\n        \"prefix\": \"<string>\"\n      },\n      \"org\": {\n        \"company\": \"<string>\",\n        \"department\": \"<string>\",\n        \"title\": \"<string>\"\n      },\n      \"phones\": [\n        {\n          \"phone\": \"<string>\"\n        }\n      ],\n      \"urls\": [\n        {\n          \"url\": \"<string>\"\n        }\n      ]\n    }\n  ],\n  \"document\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\",\n    \"filename\": \"<string>\"\n  },\n  \"image\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"sticker\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\"\n  },\n  \"video\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"reply_to_wamid\": \"<string>\",\n  \"whatsapp_business_account_id\": 123,\n  \"phone_number\": 123\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.algosmiths.com/api/v1/messages/")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"to\": \"<string>\",\n  \"text\": \"<unknown>\",\n  \"audio\": \"<unknown>\",\n  \"contacts\": [\n    {\n      \"addresses\": [\n        {\n          \"street\": \"<string>\",\n          \"city\": \"<string>\",\n          \"state\": \"<string>\",\n          \"zip\": \"<string>\",\n          \"country\": \"<string>\",\n          \"country_code\": \"<string>\"\n        }\n      ],\n      \"birthday\": \"<string>\",\n      \"emails\": [\n        {\n          \"email\": \"jsmith@example.com\"\n        }\n      ],\n      \"name\": {\n        \"formatted_name\": \"<string>\",\n        \"first_name\": \"<string>\",\n        \"last_name\": \"<string>\",\n        \"middle_name\": \"<string>\",\n        \"suffix\": \"<string>\",\n        \"prefix\": \"<string>\"\n      },\n      \"org\": {\n        \"company\": \"<string>\",\n        \"department\": \"<string>\",\n        \"title\": \"<string>\"\n      },\n      \"phones\": [\n        {\n          \"phone\": \"<string>\"\n        }\n      ],\n      \"urls\": [\n        {\n          \"url\": \"<string>\"\n        }\n      ]\n    }\n  ],\n  \"document\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\",\n    \"filename\": \"<string>\"\n  },\n  \"image\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"sticker\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\"\n  },\n  \"video\": {\n    \"id\": \"<string>\",\n    \"link\": \"<string>\",\n    \"caption\": \"<string>\"\n  },\n  \"reply_to_wamid\": \"<string>\",\n  \"whatsapp_business_account_id\": 123,\n  \"phone_number\": 123\n}"

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

{}