Source code for ros1_pip_pytemplate.lib_module

from __future__ import absolute_import, division, print_function

import sys

# importing a pure python package
import requests

"""
Module holding calls to a pure python package retrieved by pip
We use requests as an example of any python package you might want to interface and use in your ROS packages/nodes.

To be able to get ros1_pip_pytemplate packaged on ROS (or even get the built "install space" working),
first one would need to release (or at least build with catkin) a ROS package for requests.
Using catkin_pip for this is probably the easiest solution.
"""

import logging
_logger = logging.getLogger(__name__)
_logger.addHandler(logging.NullHandler())


class Httpbin(object):
    """Unit of testable functionality as a class, calling functionality from other libraries"""
    def __init__(self, base_url=None):
        self.basename = base_url or 'http://httpbin.org'
        # for http connection pooling, see : http://docs.python-requests.org/en/master/user/advanced/#session-objects
        self.session = requests.session()
        _logger.debug("Httpbin proxy was initialized!")

    def get(self, headers=None, params=None):
        _logger.info("Sending GET request to {0}...".format(self.basename + '/get'))
        return self.session.get(self.basename + '/get', headers=headers or {}, params=params or {})

    # Note a more complete version of this is available there :
    # https://github.com/asmodehn/pyros-schemas-examples/tree/master/pyros_httpbin