README.md

OCPP variable manager

A library for managing OCPP 1.6 variables, with mandatory key and custom value validation.

In the future, this library will be extended to support OCPP 2.0.1 as well.

Installing

    go get github.com/ChargePi/ocppManager-go

⚡ Usage

Check out the full example. It also contains a sample configuration file.

package main

import (
	"github.com/lorenzodonini/ocpp-go/ocpp1.6/core"
	"github.com/lorenzodonini/ocpp-go/ocpp1.6/smartcharging"
	log "github.com/sirupsen/logrus"
	"github.com/ChargePi/ocppManager-go/ocpp_v16"
)

func main() {
	log.SetLevel(log.DebugLevel)

	supportedProfiles := []string{core.ProfileName, smartcharging.ProfileName}
	defaultConfig, err := ocpp_v16.DefaultConfiguration(supportedProfiles...)
	if err != nil {
		log.Errorf("Error getting default configuration: %v", err)
		return
	}

	manager, err := ocpp_v16.NewV16ConfigurationManager(defaultConfig, supportedProfiles...)

	// Get value
	value, err := manager.GetConfigurationValue(ocpp_v16.AuthorizeRemoteTxRequests)
	if err != nil {
		log.Errorf("Error getting configuration value: %v", err)
		return
	}

	log.Println(*value)

	// Update key
	val := "false"
	err = manager.UpdateKey(ocpp_v16.AuthorizeRemoteTxRequests, &val)
	if err != nil {
		log.Errorf("Error updating key: %v", err)
		return
	}

	// Get value
	value, err = manager.GetConfigurationValue(ocpp_v16.AuthorizeRemoteTxRequests)
	if err != nil {
		log.Errorf("Error getting configuration value: %v", err)
		return
	}

	log.Println(*value)

	// Register custom key validator, which will prevent the key from being updated
	manager.RegisterCustomKeyValidator(func(key ocpp_v16.Key, value *string) bool {
		return key != ocpp_v16.AuthorizeRemoteTxRequests
	})

	// Update key
	val = "true"
	err = manager.UpdateKey(ocpp_v16.AuthorizeRemoteTxRequests, &val)
	if err != nil {
		log.Errorf("Error updating key: %v", err)
		return
	}
}