dcrd/chaincfg

chaincfg

Package chaincfg defines chain configuration parameters for the four standard Decred networks.

Although this package was primarily written for dcrd, it has intentionally been designed so it can be used as a standalone package for any projects needing to use parameters for the standard Decred networks or for projects needing to define their own network.

Sample Use

package main

import (
	"flag"
	"fmt"
	"log"

	"github.com/decred/dcrd/dcrutil/v2"
	"github.com/decred/dcrd/chaincfg/v2"
)

var testnet = flag.Bool("testnet", false, "operate on the testnet Decred network")

// By default (without -testnet), use mainnet.
var chainParams = chaincfg.MainNetParams()

func main() {
	flag.Parse()

	// Modify active network parameters if operating on testnet.
	if *testnet {
		chainParams = chaincfg.TestNet3Params()
	}

	// later...

	// Create and print new payment address, specific to the active network.
	pubKeyHash := make([]byte, 20)
	addr, err := btcutil.NewAddressPubKeyHash(pubKeyHash, chainParams)
	if err != nil {
		log.Fatal(err)
	}
	fmt.Println(addr)
}

Installation and Updating

This package is part of the github.com/decred/dcrd/chaincfg/v3 module. Use the standard go tooling for working with modules to incorporate it.

License

Package chaincfg is licensed under the copyfree ISC License.