# Promote branch as the default one

**PATCH /docs/{doc_id_or_slug}/branches/{slug}/set_default**




## Servers
- Production: https://bump.sh/api/v1 ()


## Authentication methods
- Authorization token
- Basic token (deprecated)


## Parameters

### Path parameters
- **doc_id_or_slug** (string)
  UUID or slug of a documentation which can be seen in the Automatic Deployment settings page of your documentation
- **slug** (string)
  Slug of a branch which can be seen in the branches settings page of your documentation



## Responses
### 200
Branch is already the default branch.

### 204
Branch is now set to default.

### 404
Branch not found

### 422
Branch has an empty history


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