exponent-server-sdk-python

If you have problems with the code in this repository, please file issues & bug reports at https://github.com/expo/expo. Thanks!

Installation

pip install exponent_server_sdk

Usage

Use to send push notifications to Exponent Experiences from a Python server.

Full documentation on the API is available if you want to dive into the details.

Here's an example on how to use this with retries and reporting via pyrollbar.

from exponent_server_sdk import DeviceNotRegisteredError
from exponent_server_sdk import PushClient
from exponent_server_sdk import PushMessage
from exponent_server_sdk import PushResponseError
from exponent_server_sdk import PushServerError
from requests.exceptions import ConnectionError
from requests.exceptions import HTTPError


# Basic arguments. You should extend this function with the push features you
# want to use, or simply pass in a `PushMessage` object.
def send_push_message(token, message, extra=None):
    try:
        response = PushClient().publish(
            PushMessage(to=token,
                        body=message,
                        data=extra))
    except PushServerError as exc:
        # Encountered some likely formatting/validation error.
        rollbar.report_exc_info(
            extra_data={
                'token': token,
                'message': message,
                'extra': extra,
                'errors': exc.errors,
                'response_data': exc.response_data,
            })
        raise
    except (ConnectionError, HTTPError) as exc:
        # Encountered some Connection or HTTP error - retry a few times in
        # case it is transient.
        rollbar.report_exc_info(
            extra_data={'token': token, 'message': message, 'extra': extra})
        raise self.retry(exc=exc)

    try:
        # We got a response back, but we don't know whether it's an error yet.
        # This call raises errors so we can handle them with normal exception
        # flows.
        response.validate_response()
    except DeviceNotRegisteredError:
        # Mark the push token as inactive
        from notifications.models import PushToken
        PushToken.objects.filter(token=token).update(active=False)
    except PushResponseError as exc:
        # Encountered some other per-notification error.
        rollbar.report_exc_info(
            extra_data={
                'token': token,
                'message': message,
                'extra': extra,
                'push_response': exc.push_response._asdict(),
            })
        raise self.retry(exc=exc)