April 2017
Intermediate to advanced
266 pages
7h 4m
English
Content preview from Building Blockchain Projects
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Building a Wallet Service
A wallet service is used to send and receive funds. Major challenges for building a wallet service are security and trust. Users must feel that their funds are secure and the administrator of the wallet service doesn't steal their funds. The wallet service we will build in this chapter will tackle both these issues.
In this chapter, we'll cover the following topics:
- Difference between online and offline wallets
- Using hooked-web3-provider and ethereumjs-tx to make it easier to create and sign transactions using accounts not managed by an Ethereum node
- Understanding what a HD wallet is and also its uses
- Creating an HD wallet and a transaction signer using lightwallet.js
- Building a wallet service
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.