Hey, it really depends on how you implement your endpoints. We personally, use RPC most of the time so, the implementation of the views might look like this:

@api_view('POST')
def deposit(request):
    asof = timezone.now()
    try:
        amount = int(request.data['amount'])
    except (KeyError, ValueError):
        return Response({
            'error': 'invalid_request',
            'data': {
                'amount': 'missing or invalid number.'
            },
        )
     try:
        account, action = account.deposit(
            uid=request.user.account.uid,
            amount=amount,
            deposited_by=request.user,
            asof=asof,
        )
    except ExceedsLimit:
        return Response({'error': 'exceeds_limit.', 'data': None})
    except InvalidAmount:
        return Response({'error': 'invalid_amount.', 'data': {'amount': amount}})
    except Account.DoesNotExist:
        return Response({'error': 'invalid_request.', 'data': {'account': 'does not exist'}})
    return Response({
        # ... whatever...
    })
})