Poloniex Exceptions Handler

[David-Pena]

I'm trying to handle poloniex exceptions but in https://docs.poloniex.com/ can't find anything about it.

Is there another doc should I see?

[s4w3d0ff]

What exception are you trying to handle?

This wrapper handles a select few exceptions internally. All the exceptions are handled in the _handleReturned method and _retry decorator.

If a RequestsException is raised during an api call to poloniex, the _retry decorator will capture it and retry the call.

If an error status code is returned from poloniex, _handleReturned will raise a RequestsException triggering the _retry decorator and output what was returned to the logger at the 'error' level.

If poloniex returns something other than json data the _handleReturned method will raise a PoloniexError with a 'Invalid json response returned' message (example: #198) and the returned output is logged at the 'error' level.

Sometimes Poloniex returns an 'error' field within the json data. This wrapper looks for "Nonce must be greater", attempts to update the nonce and raises a RequestsException to trigger the _retry decorator and try the call again. This wrapper also looks for "please try again" and again raises a RequestsException to trigger _retry (see here).

Any other message in the 'error' field is captured and raised as a PoloniexError.

The only other exception this wrapper should raise is a RetryException which has a list of all the RequestsExceptions captured while attempting to retry api calls.

Most errors returned will be logged by the poloniex.logger at the error level. So when debugging you can use the logging module to see the output:

import logging

logging.basicConfig()
poloniex.logger.setLevel(logging.DEBUG)

Hope this helps.