## Table of Contents

- [Query Variables](#query-variables)

---

[](https://microlink.io/docs/api/getting-started/overview)

[API](https://microlink.io/docs/api/getting-started/overview)

[](https://microlink.io/docs/guides)

GUIDES

[](https://microlink.io/docs/mql/getting-started/overview)

MQL

[](https://microlink.io/docs/sdk/getting-started/overview)

SDK

[](https://microlink.io/docs/cards/getting-started/overview)

CARDS

## Query Variables

The query variables is the way to reuse your composition, feeding it with data, creating a new mix.

Every preset has different query variables definition. They can be used to set a color, a URL or change the card behavior based on it.

They maximize presets reusability and will be encoded as part of the URL as query parameters.