GPS-Logger/serializers.py

from django.db import transaction
from rest_framework import serializers
from .models import *

class MarkerSerializer(serializers.ModelSerializer):

  def create(self, validated_data):
    instance = Marker(**validated_data)
    instance.save()
    return instance

  class Meta:
    model = Marker
    fields = ("id", "timestamp", "lat", "lng", "alt", "hdop", "speed")
    read_only_fields = ("id",)