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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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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
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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

IPFS file uploader project

In the second part of this chapter, we will take a more detailed look at how we can use IPFS's HTTP API programmatically. To do so, we will create a simple HTML and JavaScript web page from which we can upload files to IPFS directly, without the need to first upload the files to a backend server.

To do this, we will use the JS-IPFS-API JavaScript library, which will allow a browser-based frontend to communicate directly with the local IPFS node that we created earlier in the chapter. Note that this API library should not be confused with JS-IPFS, which is a JavaScript implementation of the main IPFS protocol.

The aim here is not to explore the HTTP API completely, but to provide a basic example of how it can be used. To learn more about the methods made available by the API, the relevant documentation should be consulted, at https://github.com/ipfs...

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