curl --request POST \
  --url https://api.onesignal.com/apps \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: <content-type>' \
  --data '
{
  "name": "NAME_OF_NEW_APP",
  "organization_id": "YOUR_ORG_ID",
  "chrome_web_origin": "<string>",
  "site_name": "SITE_NAME",
  "safari_site_origin": "<string>",
  "chrome_web_default_notification_icon": "<string>",
  "safari_icon_256_256": "<string>",
  "safari_apns_p12": "<string>",
  "safari_apns_p12_password": "<string>",
  "fcm_v1_service_account_json": "<string>",
  "apns_p8": "<string>",
  "apns_key_id": "<string>",
  "apns_team_id": "<string>",
  "apns_bundle_id": "<string>",
  "apns_p12": "<string>",
  "apns_p12_password": "<string>",
  "additional_data_is_root_payload": false
}
'

import Onesignal from '@onesignal/node-onesignal';

const configuration = Onesignal.createConfiguration({
    organizationApiKey: 'YOUR_ORGANIZATION_API_KEY',
});
const apiInstance = new Onesignal.DefaultApi(configuration);

// App
const app: Onesignal.App = {
    name: "name_example",
    android_gcm_sender_id: "android_gcm_sender_id_example",
    gcm_key: "gcm_key_example",
    chrome_web_origin: "chrome_web_origin_example",
    chrome_key: "chrome_key_example",
    chrome_web_default_notification_icon: "chrome_web_default_notification_icon_example",
    chrome_web_sub_domain: "chrome_web_sub_domain_example",
    apns_env: "sandbox",
    apns_p12: "apns_p12_example",
    apns_p12_password: "apns_p12_password_example",
    safari_apns_p12: "safari_apns_p12_example",
    safari_apns_p12_password: "safari_apns_p12_password_example",
    apns_key_id: "apns_key_id_example",
    apns_team_id: "apns_team_id_example",
    apns_bundle_id: "apns_bundle_id_example",
    apns_p8: "apns_p8_example",
    safari_site_origin: "safari_site_origin_example",
    safari_icon_256_256: "safari_icon_256_256_example",
    site_name: "site_name_example",
    organization_id: "organization_id_example",
    additional_data_is_root_payload: true,
  };

try {
  const response = await apiInstance.createApp(app);
  console.log(response);
} catch (e) {
  if (e instanceof Onesignal.ApiException) {
    // `e.errorMessages` flattens any error-envelope shape to a `string[]`;
    // the raw parsed body remains on `e.body`.
    console.error("createApp failed: HTTP " + e.code, e.errorMessages);
  } else {
    throw e;
  }
}

import onesignal
from onesignal.api import default_api
from onesignal.models import *
from pprint import pprint

# See configuration.py for a list of all supported configuration parameters.
# Some of the OneSignal endpoints require ORGANIZATION_API_KEY token for authorization, while others require REST_API_KEY.
# We recommend adding both of them in the configuration page so that you will not need to figure it out yourself.
configuration = onesignal.Configuration(
    rest_api_key = "YOUR_REST_API_KEY", # App REST API key required for most endpoints
    organization_api_key = "YOUR_ORGANIZATION_API_KEY" # Organization key is only required for creating new apps and other top-level endpoints
)


# Enter a context with an instance of the API client
with onesignal.ApiClient(configuration) as api_client:
    # Create an instance of the API class
    api_instance = default_api.DefaultApi(api_client)
    app = App(
        name="name_example",
        android_gcm_sender_id="android_gcm_sender_id_example",
        gcm_key="gcm_key_example",
        chrome_web_origin="chrome_web_origin_example",
        chrome_key="chrome_key_example",
        chrome_web_default_notification_icon="chrome_web_default_notification_icon_example",
        chrome_web_sub_domain="chrome_web_sub_domain_example",
        apns_env="sandbox",
        apns_p12="apns_p12_example",
        apns_p12_password="apns_p12_password_example",
        safari_apns_p12="safari_apns_p12_example",
        safari_apns_p12_password="safari_apns_p12_password_example",
        apns_key_id="apns_key_id_example",
        apns_team_id="apns_team_id_example",
        apns_bundle_id="apns_bundle_id_example",
        apns_p8="apns_p8_example",
        safari_site_origin="safari_site_origin_example",
        safari_icon_256_256="safari_icon_256_256_example",
        site_name="site_name_example",
        organization_id="organization_id_example",
        additional_data_is_root_payload=True,
    ) 

    try:
        # Create an app
        api_response = api_instance.create_app(app)
        pprint(api_response)
    except onesignal.ApiException as e:
        print("Exception when calling DefaultApi->create_app: %s\n" % e)
        print("Status Code: %s" % e.status)
        print("Response Body: %s" % e.body)

<?php
require_once(__DIR__ . '/vendor/autoload.php');


// Configure Bearer authorization: organization_api_key
$config = onesignal\client\Configuration::getDefaultConfiguration()
                                                ->setRestApiKeyToken('YOUR_REST_API_KEY')
                                                ->setOrganizationApiKeyToken('YOUR_ORGANIZATION_API_KEY');



$apiInstance = new onesignal\client\Api\DefaultApi(
    // If you want use custom http client, pass your client which implements `GuzzleHttp\ClientInterface`.
    // This is optional, `GuzzleHttp\Client` will be used as default.
    new GuzzleHttp\Client(),
    $config
);
$app = new \onesignal\client\model\App(); // \onesignal\client\model\App

try {
    $result = $apiInstance->createApp($app);
    print_r($result);
} catch (\onesignal\client\ApiException $e) {
    echo 'Exception when calling DefaultApi->createApp: ', $e->getMessage(), PHP_EOL;
    echo 'Status Code: ', $e->getCode(), PHP_EOL;
    // getErrorMessages() flattens any error-envelope shape to a string[];
    // the raw body remains on getResponseBody().
    echo 'Error Messages: ', implode(', ', $e->getErrorMessages()), PHP_EOL;
    echo 'Response Body: ', $e->getResponseBody(), PHP_EOL;
} catch (\Exception $e) {
    echo 'Exception when calling DefaultApi->createApp: ', $e->getMessage(), PHP_EOL;
}

package main

import (
    "context"
    "fmt"
    "os"

    "github.com/OneSignal/onesignal-go-api/v5"
)

func main() {
    app := *onesignal.NewApp() // App | 

    configuration := onesignal.NewConfiguration()
    apiClient := onesignal.NewAPIClient(configuration)

    orgAuth := context.WithValue(context.Background(), onesignal.OrganizationApiKey, "YOUR_ORGANIZATION_API_KEY") // Organization API key is only required for creating new apps and other top-level endpoints

    resp, r, err := apiClient.DefaultApi.CreateApp(orgAuth).App(app).Execute()

    if err != nil {
        fmt.Fprintf(os.Stderr, "Error when calling `DefaultApi.CreateApp``: %v\n", err)
        fmt.Fprintf(os.Stderr, "Full HTTP response: %v\n", r)
        if apiErr, ok := err.(*onesignal.GenericOpenAPIError); ok {
            // ErrorMessages() flattens any error-envelope shape to a []string;
            // the raw body remains on Body().
            fmt.Fprintf(os.Stderr, "Error Messages: %v\n", apiErr.ErrorMessages())
            fmt.Fprintf(os.Stderr, "Response Body: %s\n", apiErr.Body())
        }
    }
    // response from `CreateApp`: App
    fmt.Fprintf(os.Stdout, "Response from `DefaultApi.CreateApp`: %v\n", resp)
}

require 'onesignal'
# setup authorization
OneSignal.configure do |config|
  # Configure Bearer authorization: organization_api_key
  config.organization_api_key = 'YOUR_ORGANIZATION_API_KEY'

end

api_instance = OneSignal::DefaultApi.new
app = OneSignal::App.new # App | 

begin
  # Create an app
  result = api_instance.create_app(app)
  p result
rescue OneSignal::ApiError => e
  puts "Error when calling DefaultApi->create_app: #{e}"
  puts "Status Code: #{e.code}"
  # `e.error_messages` flattens any error-envelope shape to an Array<String>;
  # the raw body remains on `e.response_body`.
  puts "Error Messages: #{e.error_messages}"
  puts "Response Body: #{e.response_body}"
end

// Import classes:
import com.onesignal.client.ApiClient;
import com.onesignal.client.ApiException;
import com.onesignal.client.Configuration;
import com.onesignal.client.auth.*;
import com.onesignal.client.model.*;
import com.onesignal.client.api.DefaultApi;

public class Example {
  public static void main(String[] args) {
    ApiClient defaultClient = Configuration.getDefaultApiClient();
    defaultClient.setBasePath("https://api.onesignal.com");
    
    // Configure HTTP bearer authorization: organization_api_key
    HttpBearerAuth organization_api_key = (HttpBearerAuth) defaultClient.getAuthentication("organization_api_key");
    organization_api_key.setBearerToken("YOUR_ORGANIZATION_API_KEY");

    DefaultApi apiInstance = new DefaultApi(defaultClient);
    App app = new App(); // App | 
    try {
      App result = apiInstance.createApp(app);
      System.out.println(result);
    } catch (ApiException e) {
      System.err.println("Exception when calling DefaultApi#createApp");
      System.err.println("Status code: " + e.getCode());
      // getErrorMessages() flattens any error-envelope shape to a List<String>;
      // the raw body remains on getResponseBody().
      System.err.println("Error messages: " + e.getErrorMessages());
      System.err.println("Reason: " + e.getResponseBody());
      System.err.println("Response headers: " + e.getResponseHeaders());
      e.printStackTrace();
    }
  }
}

using System;
using System.Collections.Generic;
using System.Diagnostics;
using OneSignalApi.Api;
using OneSignalApi.Client;
using OneSignalApi.Model;

namespace Example
{
    public class CreateAppExample
    {
        public static void Main()
        {
            Configuration config = new Configuration();
            config.BasePath = "https://api.onesignal.com";
            // Configure Bearer token for authorization: organization_api_key
            config.AccessToken = "YOUR_ORGANIZATION_API_KEY";

            var apiInstance = new DefaultApi(config);
            var app = new App(); // App | 

            try
            {
                // Create an app
                App result = apiInstance.CreateApp(app);
                Debug.WriteLine(result);
            }
            catch (ApiException  e)
            {
                Debug.Print("Exception when calling DefaultApi.CreateApp: " + e.Message );
                Debug.Print("Status Code: "+ e.ErrorCode);
                // e.ErrorMessages flattens any error-envelope shape to an IReadOnlyList<string>;
                // the raw body remains on e.ErrorContent.
                Debug.Print("Error Messages: " + string.Join(", ", e.ErrorMessages));
                Debug.Print("Response Body: " + e.ErrorContent);
                Debug.Print(e.StackTrace);
            }
        }
    }
}

use onesignal_rust_api::apis::configuration::Configuration;
use onesignal_rust_api::apis::default_api;

use onesignal_rust_api::models;


#[tokio::main]
async fn main() {
    let mut configuration = Configuration::new();
    configuration.organization_api_key_token = Some("YOUR_ORGANIZATION_API_KEY".to_string());


    // Realistic values are pulled from the spec's `example:` fields where present.
    let app: models::App = todo!();

    match default_api::create_app(&configuration, app).await {
        Ok(resp) => println!("{:?}", resp),
        Err(e @ onesignal_rust_api::apis::Error::ResponseError(_)) => {
            // `e.error_messages()` flattens any error-envelope shape to a Vec<String>;
            // the raw response remains on the ResponseError variant.
            eprintln!("create_app failed: {:?}", e.error_messages());
        }
        Err(e) => eprintln!("create_app failed: {:?}", e),
    }
}

{
  "id": "<string>",
  "name": "<string>",
  "players": 123,
  "messageable_players": 123,
  "created_at": "<string>",
  "updated_at": "<string>",
  "organization_id": "<string>"
}

{
  "errors": [
    "You do not have permission to create an app in this organization."
  ]
}

{
  "errors": [
    "Organization not found"
  ]
}

{
  "errors": [
    "API rate limit exceeded"
  ]
}

{
  "errors": [
    "Service temporarily unavailable"
  ]
}