> ## Documentation Index
> Fetch the complete documentation index at: https://domoinc-openapi-sync-dataflows.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Creating Custom Packages

## Creating a Custom Package

1. Click **+ New Package** (ensure you have the required grants).
2. Fill in the required fields:
   * **Package Name**
   * **Package Description**
   * **Language** (JavaScript or Python)
3. (Optional) Upload a thumbnail.
4. Click **Create New Package** to open it in the code editor.

***

## Creating a New Package Version

To update a package (e.g., add or update a function):

1. Open the package in the code editor.
2. Click **Create New Version**.
3. Select a version to copy from.
4. Enter the new version number (Semantic Versioning).
5. (Optional) Add a version description.
6. Click **Create New Version**.

The new version becomes the default, but you can access earlier versions as needed.

***

## Code Engine Library

The Code Engine library provides methods for internal and external API calls. Import it with `require("codeengine")`.

### codeengine.sendRequest

Make calls to internal Domo APIs. Example:

```js theme={"dark"}
const codeengine = require('codeengine');

function getDataSetMetadata(dataSetId) {
  const url = `api/data/v3/datasources/${dataSetId}?part=core,permission,status,pdp,rowcolcount,certification,functions`;
  return codeengine.sendRequest('get', url).catch(console.error);
}
```

### codeengine.getAccount

Retrieve account credentials for use in external API calls. Example:

```js theme={"dark"}
const codeengine = require('codeengine');

async function accountExample(twilioAccount) {
  const account = await codeengine.getAccount(twilioAccount.id);
  const { accountSID, password } = account.properties;
}
```

### codeengine.axios

Make external HTTP requests. Example:

```js theme={"dark"}
const codeengine = require('codeengine');

async function sendTwilioSms(to, from, body) {
  const account = await codeengine
    .getAccount('Twilio')
    .then((a) => a.properties);
  const url = `https://api.twilio.com/2010-04-01/Accounts/${account.SID}/Messages.json`;
  const data = new URLSearchParams();
  data.append('To', to);
  data.append('From', from);
  data.append('Body', body);
  const requestOptions = {
    method: 'POST',
    headers: {
      'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8',
      Authorization:
        'Basic ' +
        Buffer.from(`${account.SID}:${account.TOKEN}`).toString('base64'),
    },
    data,
  };
  try {
    const response = await codeengine.axios(url, requestOptions);
    const jsonResponse = await response.data;
    if (response.ok) {
      console.log('SMS sent successfully:', jsonResponse);
      return jsonResponse;
    } else {
      console.error('Error sending SMS:', jsonResponse);
      throw new Error(jsonResponse.message);
    }
  } catch (error) {
    console.error('Error:', error);
    throw error;
  }
}
```

***