Python RELP library

A pure python implementation of the RELP protocol (Reliable Event Logging Protocol), client and server side.

Installation

pip install git+git://github.com/rudexi/python-relp.git#egg=relp

Usage

Client

Using a compound statement (with statement):

from relp.client import RelpClient

messages = [
    "My log message",
    "My second log message",
]

with RelpClient('myexample.com', 2514) as client:
    print("Starting RELP connection")
    for message in messages:
        client.syslog(message)
    print("Stopping client...")

print("Everything was transfered without error")

Without compound statement:

client = RelpClient('myexample.com', 2514)
client.start()

client.syslog("My log message")
client.syslog("My second log message")

client.stop()
print("Everything was transfered without error")

Note: Each syslog invocation will be sync and wait for the acknowledgement to return. It is possible to make the client multi-threaded and send multiple syslogs, this is not supported by the library yet.

Server

from relp.server import RelpServer

def handler(message):
    '''Handler for RELP server'''
    print(f"Received: {message}")

server = RelpServer('0.0.0.0', 2514, handler)

server.serve_forever()

Note: The server will wait for the handler to be finished before sending the acknowledgement. So it's possible to write to disk, database, forward to another RELP server, or use any protocol that has application level acknowledgement (like HTTP return code for instance). The acknowledgement will be sent to the client only after the handler terminates.

Contribute

Read CONTRIBUTE.md