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Blockchain By Example

You're reading from   Blockchain By Example A developer's guide to creating decentralized applications using Bitcoin, Ethereum, and Hyperledger

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Product type Paperback
Published in Nov 2018
Publisher Packt
ISBN-13 9781788475686
Length 528 pages
Edition 1st Edition
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Concepts
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Authors (3):
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Xun (Brian) Wu Xun (Brian) Wu
Author Profile Icon Xun (Brian) Wu
Xun (Brian) Wu
Bellaj Badr Bellaj Badr
Author Profile Icon Bellaj Badr
Bellaj Badr
Richard Horrocks Richard Horrocks
Author Profile Icon Richard Horrocks
Richard Horrocks
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Table of Contents (13) Chapters Close

Preface 1. Say Hello to Blockchain FREE CHAPTER 2. Building a Bitcoin Payment System 3. Building Your Own Cryptocurrency 4. Peer-to-Peer Auctions in Ethereum 5. Tontine Game with Truffle and Drizzle 6. Blockchain-Based Futures System 7. Blockchains in Business 8. Creating an ICO 9. Distributed Storage IPFS and Swarm 10. Supply Chain on Hyperledger 11. Letter of Credit (LC) Hyperledger 12. Other Books You May Enjoy

Running the auction DApp

At this level, you should have already deployed your contract on one of the deployment environments presented beforehand. To try what we have built so far, follow these instructions:

  1. In auction.js, define your RPC and port provider: web3.setProvider(new web3.providers.HttpProvider("http://<IP>:<port>"));.
  2. Change the contract's address: var contractAddress = "your contract address";.
  3. Afterwards, open the index.html file directly in your browser or by using a web server. The loaded web page looks as follows:

To start interacting with this DApp, the easiest method is to use MetaMask connected to Ganache. In this case, we'll need to import some of the accounts created by Ganache into MetaMask. To do that, we copy the private key from the Ganache interface and in MetaMask, we import the corresponding accounts by...

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