wip implementation of account.Wallet

Makefile

@@ -12,3 +12,7 @@ test:
 .PHONY: deps/cp
 deps/cp:
 	@cp -r "${GOPATH}/src/github.com/ethereum/go-ethereum/crypto/secp256k1/libsecp256k1" "vendor/github.com/ethereum/go-ethereum/crypto/secp256k1/"
+
+.PHONY: example
+example:
+	@go run -v example/example.go

README.md

@@ -1,8 +1,6 @@
 # go-ethereum-hdwallet
 
-> Ethereum HD Wallet derivations from mnemonic in Go (golang)
-
-Note: This is a WIP. Although it's working, I'm going to implement the `Wallet` interface from go-ethereum which will break the current API.
+> Ethereum HD Wallet derivations from mnemonic in Go (golang). Implements the [go-ethereum](https://github.com/ethereum/go-ethereum) [`accounts.Wallet`](https://github.com/ethereum/go-ethereum/blob/master/accounts/accounts.go) interface.
 
 ## Install
 

example/example.go

@@ -2,23 +2,32 @@ package main
 
 import (
 	"fmt"
+	"log"
 
-	"github.com/miguelmota/go-ethereum-hdwallet"
+	//"github.com/miguelmota/go-ethereum-hdwallet"
+	hdwallet ".."
 )
 
 func main() {
 	mnemonic := "tag volcano eight thank tide danger coast health above argue embrace heavy"
-	root, _ := hdwallet.New(&hdwallet.Config{
-		Mnemonic: mnemonic,
-		Path:     `m/44'/60'/0'/0`,
-	})
+	wallet, err := hdwallet.NewFromMnemonic(mnemonic)
+	if err != nil {
+		log.Fatal(err)
+	}
 
-	wallet0, _ := root.Derive(0)
-	fmt.Println(wallet0.AddressHex()) // 0xC49926C4124cEe1cbA0Ea94Ea31a6c12318df947
+	path := hdwallet.MustParseDerivationPath("m/44'/60'/0'/0/0")
+	account, err := wallet.Derive(path, false)
+	if err != nil {
+		log.Fatal(err)
+	}
 
-	wallet1, _ := root.Derive(1)
-	fmt.Println(wallet1.AddressHex()) // 0x8230645aC28A4EdD1b0B53E7Cd8019744E9dD559
+	fmt.Println(account.Address.Hex()) // 0xC49926C4124cEe1cbA0Ea94Ea31a6c12318df947
 
-	wallet2, _ := root.Derive(2)
-	fmt.Println(wallet2.AddressHex()) // 0x65c150B7eF3B1adbB9cB2b8041C892b15eDde05A
+	path = hdwallet.MustParseDerivationPath("m/44'/60'/0'/0/1")
+	account, err = wallet.Derive(path, false)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	fmt.Println(account.Address.Hex()) // 0xC49926C4124cEe1cbA0Ea94Ea31a6c12318df947
 }