breez-sdk-docs/snippets/go/getting_started.go

package example

import (
	"log"

	"github.com/breez/breez-sdk-go/breez_sdk"
)

// ANCHOR: init-sdk-requirements
// SDK events listener
type BreezListener struct{}

func (BreezListener) OnEvent(e breez_sdk.BreezEvent) {
	log.Printf("received event %#v", e)
}

// ANCHOR_END: init-sdk-requirements

func GettingStarted() {
	// ANCHOR: init-sdk
	// Create the default config
	seed, err := breez_sdk.MnemonicToSeed("<mnemonic words>")
	if err != nil {
		log.Fatalf("MnemonicToSeed failed: %#v", err)
	}

	inviteCode := "<invite code>"
	apiKey := "<api key>"
	nodeConfig := breez_sdk.NodeConfigGreenlight{
		Config: breez_sdk.GreenlightNodeConfig{
			PartnerCredentials: nil,
			InviteCode:         &inviteCode,
		},
	}

	config := breez_sdk.DefaultConfig(breez_sdk.EnvironmentTypeProduction, apiKey, nodeConfig)
	// Customize the config object according to your needs
	config.WorkingDir = "path to an existing directory"

	sdk, err := breez_sdk.Connect(config, seed, BreezListener{})
	if err != nil {
		log.Fatalf("Connect failed: %#v", err)
	}
	// ANCHOR_END: init-sdk
	// ANCHOR: fetch-balance
	if nodeInfo, err := sdk.NodeInfo(); err != nil {
		lnBalance := nodeInfo.ChannelsBalanceMsat
		onchainBalance := nodeInfo.OnchainBalanceMsat

		log.Printf("%#v %#v", lnBalance, onchainBalance)
	}
	// ANCHOR_END: fetch-balance
}