"""JSON encoder."""

from datetime import datetime
from json import JSONEncoder


class CustomJSONEncoder(JSONEncoder):
    """Custom JSON Encoder Class."""

    def default(self, obj):
        """Default method for JSON Encoder."""
        try:
            if isinstance(obj, datetime):
                return obj.strftime('%Y-%m-%d %H:%M:%S.%fZ')
        except TypeError:
            pass
        return JSONEncoder.default(self, obj)