> Portal Navigation:
> 
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## Resource: Introduction

## Article: Introduction

## Article Link: https://dev.wix.com/docs/sdk/core-modules/essentials/introduction.md

## Article Content:

# Essentials

The Essentials API contains common functionality that you might need when building on the Wix platform.

The Essentials API includes the following submodules:

- [`auth`](https://dev.wix.com/docs/sdk/core-modules/essentials/auth.md): Allows you to work with Wix authentication and permissions.
- [`errorHandler`](https://dev.wix.com/docs/sdk/core-modules/essentials/error-handler.md): Provides centralized error handling for HTTP requests with standardized error messaging and user feedback.
- [`httpClient`](https://dev.wix.com/docs/sdk/core-modules/essentials/http-client.md): Includes helper methods for making authenticated requests within the Wix platform.
- [`i18n`](https://dev.wix.com/docs/sdk/core-modules/essentials/i18n.md): Allows app extensions to access the language and locale settings of the site on which it's installed.
- [`monitoring`](https://dev.wix.com/docs/sdk/core-modules/essentials/monitoring.md): Allows apps to send monitoring events to their external monitoring provider. Currently only [Sentry](https://sentry.io/) is supported.
- [`settings`](https://dev.wix.com/docs/sdk/core-modules/essentials/settings.md): Allows apps frontend extensions to access the active time zone for each interface. Currently only dashboard pages are supported.


## Setup
@package_metadata:@wix/essentials

To use the Essentials API, install the `@wix/essentials` package. 

### Install the package

Follow the installation instructions for your development environment. 

| Development environment    | Installation method |
| -------------------------- | ------------------- |
| Wix sites (editor or IDE)  | Use the [package manager](https://dev.wix.com/docs/develop-websites/articles/coding-with-velo/packages/work-with-npm-packages-in-the-editor.md). |
| Wix sites (local IDE)      | Run `wix install @wix/essentials` using the [Wix CLI](https://dev.wix.com/docs/develop-websites/articles/coding-with-velo/packages/work-with-npm-packages-with-the-wix-cli.md). |
| Blocks apps                | Use the same installation method as Wix sites. |
| CLI and self-hosted apps   | Run `npm install @wix/essentials` or `yarn add @wix/essentials`. |
| Headless sites and apps    | Run `npm install @wix/essentials` or `yarn add @wix/essentials`. |

### Import the package

To import the package in your code:

```js
import { essentials } from "@wix/essentials";
```