# Reaction
## Properties
**user** | [**models::User**](User.md) | The user who left the reaction. |
**emoji** | **String** | The emoji type of reaction as shortcode (e.g. `:heart:`, `:+1::skin-tone-2:`). The list of accepted emoji shortcodes can be found in [this file](https://raw.githubusercontent.com/missive/emoji-mart/main/packages/emoji-mart-data/sets/14/native.json) under the top-level emojis and aliases fields, with optional skin tone modifiers when applicable. |
**created_at** | **String** | The UTC ISO 8601 time at which the reaction was left. |
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