# Check out

Do a checkout for a member.

Endpoint: POST /user/checkout
Version: 1.0.0
Security: accesstoken

## Query parameters:

  - `gymId` (number, required)
    The id of the gym
    Example: 234

## Request fields (application/json):

  - `userId` (string, required)
    Unique ID that identifies the EGYM user in the EGYM system
    Example: "-qwn9fgz5sa3i"

  - `rfidId` (string)
    ID that identifies the RFID Chip (either a long number OR a hex string with '0x' as leading characters)
    Example: "0xAA"

  - `membershipId` (string)
    Member ID of the gym software
    Example: "membership_id"

  - `eMail` (string)
    Email address of the member
    Example: "example@egym.com"

  - `userPresenceTimestamp` (number)
    Timestamp in milliseconds since epoch for a checkin / checkout event that happened in the past
    Example: 1606228021

## Response 4XX fields (application/json):

  - `error` (integer)
    The error code.
    Example: 401

  - `errorText` (string)
    The error message.
    Example: "The provided user name or password is incorrect."


## Response 204 fields