# Register or update a device for push notifications

Endpoint: PUT /api/v1/devices
Version: 1.0
Security: header

## Request fields (application/json):

  - `deviceId` (string, required)

  - `fcmToken` (string, required)

  - `endpoint` (string, required)

  - `keys` (object, required)

  - `keys.p256dh` (string, required)

  - `keys.auth` (string, required)

  - `platform` (string, required)

  - `device` (string,null)

## Response 401 fields (application/json):

  - `errorCode` (string, required)
    Error code

  - `message` (string, required)
    Error message

  - `docUrl` (string)
    Link to documentation


## Response 400 fields