Modifying the default ADR algorithm and adding your own ADR algorithm

shubham1996 · October 13, 2021, 11:13am

Dear community,
I have installed chirpstack server on my PC. I am aware that by default an ADR algorithm is provided. My question is if I want to modify the ADR algorithm, how to do that. Also, kindly let me know the steps I need to follow to use my own ADR algorithm in the network server. I went through several articles and got some hints but I need more information about it in detail.

brocaar · October 13, 2021, 3:46pm

You will find a skeleton here:

github.com

brocaar/chirpstack-network-server/blob/master/examples/adr-plugin/main.go

package main

import (
	"github.com/hashicorp/go-plugin"
	log "github.com/sirupsen/logrus"

	"github.com/brocaar/chirpstack-network-server/v3/adr"
)

// Type Handler is the ADR handler.
type Handler struct{}

// ID must return the plugin identifier.
func (h *Handler) ID() (string, error) {
	return "example_plugin", nil
}

// Name must return a human-readable name.
func (h *Handler) Name() (string, error) {
	return "Example ADR plugin", nil

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You need to compile that (using the Go toolchain) and configure the path the the binary in the ChirpStack Network Server configuration

shubham1996 · October 13, 2021, 4:28pm

I have done that already and added the absolute path of the binary in adr_plugin section of chirpstack_network_server.toml file. But in the device profile section of the application server web interface, I am only able to select the default adr. Why there is no option to select my custom adr?

shubham1996 · October 18, 2021, 5:14am

Hey brocaar,
Can you suggest me what might went wrong. I really need this to happen. I appreciate if you help.

brocaar · November 1, 2021, 10:07am

Did you restart the NS? You need to in order to apply new configuration.