curl --request POST \
  --url https://api.novita.ai/v3/async/txt2speech \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "extra": {
    "response_audio_type": "<string>",
    "webhook": {
      "url": "<string>",
      "test_mode": {
        "enabled": true,
        "return_task_status": "<string>"
      }
    },
    "enterprise_plan": {
      "enabled": true
    }
  },
  "request": {
    "voice_id": "<string>",
    "language": "<string>",
    "texts": [
      "<string>"
    ],
    "volume": 123,
    "speed": 123
  }
}
'

import requests

url = "https://api.novita.ai/v3/async/txt2speech"

payload = {
    "extra": {
        "response_audio_type": "<string>",
        "webhook": {
            "url": "<string>",
            "test_mode": {
                "enabled": True,
                "return_task_status": "<string>"
            }
        },
        "enterprise_plan": { "enabled": True }
    },
    "request": {
        "voice_id": "<string>",
        "language": "<string>",
        "texts": ["<string>"],
        "volume": 123,
        "speed": 123
    }
}
headers = {
    "Content-Type": "<content-type>",
    "Authorization": "<authorization>"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {'Content-Type': '<content-type>', Authorization: '<authorization>'},
  body: JSON.stringify({
    extra: {
      response_audio_type: '<string>',
      webhook: {url: '<string>', test_mode: {enabled: true, return_task_status: '<string>'}},
      enterprise_plan: {enabled: true}
    },
    request: {
      voice_id: '<string>',
      language: '<string>',
      texts: ['<string>'],
      volume: 123,
      speed: 123
    }
  })
};

fetch('https://api.novita.ai/v3/async/txt2speech', 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.novita.ai/v3/async/txt2speech",
  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([
    'extra' => [
        'response_audio_type' => '<string>',
        'webhook' => [
                'url' => '<string>',
                'test_mode' => [
                                'enabled' => true,
                                'return_task_status' => '<string>'
                ]
        ],
        'enterprise_plan' => [
                'enabled' => true
        ]
    ],
    'request' => [
        'voice_id' => '<string>',
        'language' => '<string>',
        'texts' => [
                '<string>'
        ],
        'volume' => 123,
        'speed' => 123
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: <authorization>",
    "Content-Type: <content-type>"
  ],
]);

$response = curl_exec($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.novita.ai/v3/async/txt2speech"

	payload := strings.NewReader("{\n  \"extra\": {\n    \"response_audio_type\": \"<string>\",\n    \"webhook\": {\n      \"url\": \"<string>\",\n      \"test_mode\": {\n        \"enabled\": true,\n        \"return_task_status\": \"<string>\"\n      }\n    },\n    \"enterprise_plan\": {\n      \"enabled\": true\n    }\n  },\n  \"request\": {\n    \"voice_id\": \"<string>\",\n    \"language\": \"<string>\",\n    \"texts\": [\n      \"<string>\"\n    ],\n    \"volume\": 123,\n    \"speed\": 123\n  }\n}")

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

	req.Header.Add("Content-Type", "<content-type>")
	req.Header.Add("Authorization", "<authorization>")

	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.novita.ai/v3/async/txt2speech")
  .header("Content-Type", "<content-type>")
  .header("Authorization", "<authorization>")
  .body("{\n  \"extra\": {\n    \"response_audio_type\": \"<string>\",\n    \"webhook\": {\n      \"url\": \"<string>\",\n      \"test_mode\": {\n        \"enabled\": true,\n        \"return_task_status\": \"<string>\"\n      }\n    },\n    \"enterprise_plan\": {\n      \"enabled\": true\n    }\n  },\n  \"request\": {\n    \"voice_id\": \"<string>\",\n    \"language\": \"<string>\",\n    \"texts\": [\n      \"<string>\"\n    ],\n    \"volume\": 123,\n    \"speed\": 123\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.novita.ai/v3/async/txt2speech")

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

request = Net::HTTP::Post.new(url)
request["Content-Type"] = '<content-type>'
request["Authorization"] = '<authorization>'
request.body = "{\n  \"extra\": {\n    \"response_audio_type\": \"<string>\",\n    \"webhook\": {\n      \"url\": \"<string>\",\n      \"test_mode\": {\n        \"enabled\": true,\n        \"return_task_status\": \"<string>\"\n      }\n    },\n    \"enterprise_plan\": {\n      \"enabled\": true\n    }\n  },\n  \"request\": {\n    \"voice_id\": \"<string>\",\n    \"language\": \"<string>\",\n    \"texts\": [\n      \"<string>\"\n    ],\n    \"volume\": 123,\n    \"speed\": 123\n  }\n}"

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

{
  "task_id": "<string>"
}