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aprsd/docs/plugin.rst
Hemna c929689647 Update documentation and README
This updates the documentation in prep for 3.0.0
2022-12-28 16:50:34 -05:00

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APRSD Command Plugin Development
================================
APRSDPluginBase
------------------------
Plugins are written as python objects that extend the APRSDPluginBase class.
This is an abstract class that has several properties and a method that must be implemented
by your subclass.
Properties
----------
* name - the Command name
* regex - The regular expression that if matched against the incoming APRS message,
will cause your plugin to be called.
Methods
-------
* command - This method is called when the regex matches the incoming message from APRS.
If you want to send a message back to the sending, just return a string
in your method implementation. If you get called and don't want to reply, then
you should return a messaging.NULL_MESSAGE to signal to the plugin processor
that you got called and processed the message correctly. Otherwise a usage
string may get returned to the sender.
Example Plugin
--------------
There is an example plugin in the aprsd source code here:
aprsd/examples/plugins/example_plugin.py
.. code-block:: python
import logging
from aprsd import plugin
LOG = logging.getLogger("APRSD")
class HelloPlugin(plugin.APRSDRegexCommandPluginBase):
"""Hello World."""
version = "1.0"
# matches any string starting with h or H
command_regex = "^[hH]"
command_name = "hello"
def process(self, packet):
LOG.info("HelloPlugin")
reply = "Hello '{}'".format(packet.from_call)
return reply