Summary

In this chapter, you learned about three important Ethereum libraries: Hooked-Web3-Provider, ethereumjs-tx, and LightWallet. These libraries can be used to manage accounts and sign transactions outside of the Ethereum node. While developing clients for most kinds of DApps, you will find these libraries useful.

And finally, we created a wallet service that lets users manage their accounts that share private keys or any other information related to their wallet with the backend of the service.

In the next chapter, we will build a platform to build and deploy smart contracts.