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DELETE: Remove the Game

Understand how to apply the DELETE HTTP method to safely remove game records in a REST API. Explore idempotency concepts and practice deleting entries with appropriate server responses.

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Using the DELETE method

The final method, the deletion command, simply calls the session’s DELETE method.

Python 3.5
def delete(self, game_id):
    '''Delete record for game ``game_id``
    :route: ``/<game_id>`` DELETE
    :returns:
       An acknowledgment object:
          * ``message`` Either 'One' or 'Zero' records deleted
    This method removed the game from its table
    '''
    game = g.games_db.query(Game).filter(Game.game_id == game_id).one_or_none()
    if game is not None:
        g.games_db.delete(game)
        g.games_db.commit()
        msg = 'One record deleted'
    else:
        msg = 'Zero records deleted'
    return {'message': msg}

Idempotency

Recall that the DELETE method should be idempotent. Therefore, applying the method twice should have the same impact as ...