Module em_filter

em_filter - Library for registering Emergence filters.

Version: 0.1.3

Authors: Steve Roques.

Description

em_filter - Library for registering Emergence filters

This module provides functions for: - Finding an available port for a filter service - Registering a filter with a discovery service

filter_url() = string()

port_number() = 1..65535

find_port/0	Finds an available TCP port for the filter service.
register_filter/1	Registers a filter with the discovery service.
start_filter/3

find_port() -> {ok, port_number()} | {error, no_ports_available}

returns: {ok, Port} if an available port is found, or {error, no_ports_available} if no port is available

Finds an available TCP port for the filter service. Searches for a free port in the range 8081-9000.

register_filter(FilterUrl::filter_url()) -> {ok, registered} | {error, term()}

FilterUrl: URL of the filter service to register

returns: {ok, registered} if registration is successful, or {error, Reason} if registration fails

Registers a filter with the discovery service.

This function sends an HTTP POST request to the discovery service at http://localhost:8080/register with the filter information in JSON format.

start_filter(FilterName::atom(), HandlerModule::module(), Options::list()) -> {ok, pid()} | {error, term()}

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