bitcoin-wallet

HD bitcoin wallet using golang and Blockcypher for the blockchain requests, for generating addresses, Blockcypher allows you to create wallets, but I thought that would be good to use the API only for the Blockchain requests.

Resources

• See tutorial levelup.gitconnected.com/bitcoin-hd-wallet-with-golang-and-grpc-part
• See original code github.com/LuisAcerv/btchdwallet
• See blockcypher api

Command

• make local - launch the app
• make test - launch test

Metrics

Metrics can be get on http://127.0.0.1:8082/metrics depending on configuration

Healthz

Status of server can be get by url

http://127.0.0.1:8082/liveness

and

http://127.0.0.1:8082/readiness

PROTOC installation

Make sure you grab the latest version

curl -OL https://github.com/google/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip

Unzip

unzip protoc-3.2.0-linux-x86_64.zip -d protoc3

Move protoc to /usr/local/bin/

sudo mv protoc3/bin/* /usr/local/bin/

Move protoc3/include to /usr/local/include/

sudo mv protoc3/include/* /usr/local/include/

Optional: change owner

sudo chwon [user] /usr/local/bin/protoc
sudo chwon -R [user] /usr/local/include/google

CLI

Run the grpc server

$ go run main.go

In another terminal run:

go run client/client.go -m=create-wallet

Output:

New Wallet >>

Public Key: xpub661MyMwAqRbcG3fYrFtkZGesCkhTZWAwHDM2Q1DbeMH6CcQSkrL5qzYwnRkzwKKhrsjbngkC8EcNTBvQmBAJhMUVAXmU4qv8jzVFkhrqme1

Private Key: xprv9s21ZrQH143K3Zb5kEMkC8i8eiryA3T5uzRRbcoz61k7Kp5JDK1qJCETw9vxGBCe88qu57EKUu2hX54zeivPiZhCNQ5dV6CfKdhsCwMqm5j

Mnemonic: coral light army glare basket boil school egg couple payment flee goose

To get your wallet

go run client/client.go -m=get-wallet -mne="coral light army glare basket boil school egg couple payment flee goose"

To get your balance

go run client/client.go -m=get-balance -addr=1Go23sv8vR81YuV1hHGsUrdyjLcGVUpCDy