December 2018
Beginner to intermediate
564 pages
17h 34m
English
Content preview from Blockchain Developer's Guide
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Writing Smart Contracts
In the previous chapter, we learned how the Ethereum blockchain works. Now it's time to start writing smart contracts as we have have a good grasp of how Ethereum works. There are various languages to write Ethereum smart contracts in, but Solidity is the most popular one. In this chapter, we will learn the Solidity programming language. We will finally build a DApp for proof of existence, integrity, and ownership at given a time, that is, a DApp that can prove that a file was with a particular owner at a specific time.
In this chapter, we'll cover the following topics:
- The layout of Solidity source files
- Understanding Solidity data types
- Special variables and functions of contracts
- Control structures
- Structure and ...
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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.