send_expo_message.py

from typing import List
from exponent_server_sdk import (
    PushClient,
    PushMessage,
    PushServerError,
)
from requests.exceptions import ConnectionError, HTTPError

def send_expo_message(tokens: List[str], message: str, extra=None):
    """
    Sends message to Expo server. Expo server sends the message to tokens.
    Example usage:
    send_expo_message(['ExpoToken[asdflaksgw]', 'ExpoToken[asdfgrglkgj]'], 'The message text')
    """
    for token in tokens:
        try:
            response = PushClient().publish(
                PushMessage(to=token,
                            body=message,
                            data=extra))
        except PushServerError as exc:
            # Encountered some likely formatting/validation error.
            pass
        except (ConnectionError, HTTPError) as exc:
            # Encountered some Connection or HTTP error - retry a few times in
            # case it is transient.
            pass