> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sublay.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Reaction

> ReactionType, ReactionCounts, and the Reaction record interface

Sublay v8 uses an 8-type reaction system that replaces the legacy upvote/downvote arrays. Reactions can be applied to both entities and comments. Each reaction type has a defined effect on the target owner's reputation score.

## ReactionType

The set of valid reaction values:

| Value | Reputation Effect | Description |
| - | - | - |
| `"upvote"` | +1 | Positive endorsement |
| `"downvote"` | −1 | Negative endorsement |
| `"like"` | +1 | Generic like |
| `"love"` | +2 | Strong positive reaction |
| `"wow"` | +1 | Surprise or amazement |
| `"sad"` | 0 | Empathetic reaction |
| `"angry"` | 0 | Negative emotional reaction |
| `"funny"` | +1 | Humor reaction |

## ReactionCounts

Every entity and comment includes a `reactionCounts` object with the current count for each reaction type:

```ts theme={null}
{
  upvote: number;
  downvote: number;
  like: number;
  love: number;
  wow: number;
  sad: number;
  angry: number;
  funny: number;
}
```

## Reaction Record

When fetching the list of users who reacted to an entity or comment, each item in the result is a `Reaction` record:

| Property | Type | Description |
| - | - | - |
| `id` | `string` | Unique reaction identifier (UUID). |
| `projectId` | `string` | The project this reaction belongs to. |
| `targetType` | `"entity" \| "comment"` | Whether the reaction targets an entity or a comment. |
| `targetId` | `string` | The ID of the entity or comment that was reacted to. |
| `userId` | `string` | The ID of the user who reacted. |
| `reactionType` | `ReactionType` | Which of the 8 reaction types was used. |
| `createdAt` | `string` | ISO timestamp when the reaction was created. |
| `updatedAt` | `string` | ISO timestamp when the reaction was last updated. |
| `user` | `User` | The user who reacted. Populated in fetch-reactions responses. |

## See Also

* [Entity](/v8/data-models/entity)
* [Comment](/v8/data-models/comment)
* [useReactionToggle hook](/v8/hooks/reactions/use-reaction-toggle)
* [Fetch Entity Reactions](/v8/api-reference/entities/fetch-reactions)
* [Fetch Comment Reactions](/v8/api-reference/comments/fetch-reactions)


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.