# Inserting and Removing Data

**URL:** <https://forum.alumio.com/t/inserting-and-removing-data/2224>\
**Category:** Transformers\
**Created:** [July 28, 2025, 7:38am UTC](https://forum.alumio.com/t/inserting-and-removing-data/2224 "2025-07-28T07:38:43Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![o.plokha](https://forum.alumio.com/user_avatar/forum.alumio.com/o.plokha/32/337_2.png) [@o.plokha](https://forum.alumio.com/u/o.plokha)\
**Post date:** [July 28, 2025, 7:38am UTC](https://forum.alumio.com/t/inserting-and-removing-data/2224/1 "2025-07-28T07:38:43Z")

</div>

### Table of contents

- Introduction
- Common Pattern
- Keys with dots

### Introduction

Patterns are used to insert new data or remove existing data in Alumio. The pattern you enter defines  
where the data should be added or deleted within the data structure.

- When inserting data, the pattern defines the destination path.
- When removing data, the pattern defines which field(s) to delete.

### Common Pattern

| **Pattern** | **Matches** |
| --- | --- |
| `user.name` | `user → name` |
| `order.items.*.price` | `order → items → [any item] → price` |
| `metadata.*` | All keys under `metadata` |
| `customer.address.city` | `customer → address → city` |
| `product.details.sku` | `product → details → sku` |

### Keys with dots

If a key in your data includes a dot (.) as part of the key, rather than as a level separator, you need to wrap that key in double quotes.

### Example

```json
{
  "product": {
    "product.sku": "ABC-123"
  }
}

```

To reference this in a pattern, use:

```auto
product."product.sku"

```