# Register an uploaded file

**POST /extraction/file/register**

Creates a file record for a file already uploaded to S3, by its key, so it can then be imported (for example an AI chat export). If a record for that key already exists, it is returned instead. Returns 404 if the key is not in S3. Only keys under ai-chat/, linkedin-imports/ or case-files/<the caller's code>/ can be registered (403 otherwise).


## Servers
- http://api.example.com: http://api.example.com ()


## Authentication methods
- Access token


## Parameters



### Body: application/json (object)

- **fileKey** (string)
  S3 file key (path in bucket)

- **type** (string | null)
  Override content type. If not provided, uses S3 metadata.



## Responses
### 201


#### Body: application/json (object)
- **data** (object)

- **statusCode** (number)

- **timestamp** (string(date-time))



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