Book Image

Blockchain Development for Finance Projects

By : Ishan Roy
Book Image

Blockchain Development for Finance Projects

By: Ishan Roy

Overview of this book

Blockchain technology will continue to play an integral role in the banking and finance sector in the coming years. It will enable enterprises to build transparent and secure business processes. Experts estimate annual savings of up to 20 billion dollars from this technology. This book will help you build financial apps using blockchain, guiding you through enhancing popular products and services in the banking and finance sector. The book starts by explaining the essential concepts of blockchain, and the impact of blockchain technology on the BFSI sector. Next, you'll delve into re-designing existing banking processes and building new financial apps using blockchain. To accomplish this, you'll work through eight blockchain projects. By demonstrating the entire process, the book helps you understand everything from setting up the environment and building frontend portals to system integration and testing apps. You will gain hands-on experience with the Ethereum, Hyperledger Fabric, and Stellar to develop private and public decentralized apps. Finally, you'll learn how to use ancillary platforms and frameworks such as IPFS, Truffle OpenZeppelin, and MetaMask. By the end of this blockchain book, you'll have an in-depth understanding of how to leverage distributed ledgers and smart contracts for financial use cases.
Table of Contents (17 chapters)
Section 1: Blockchain Payments and Remittances
Section 2: Blockchain Workflows Using Smart Contracts
Section 3: Securing Digital Documents and Files Using Blockchain
Section 4: Decentralized Trading Exchanges Using Blockchain
Appendix: Application Checklist

Building the exchange app

The exchange app that we're going to build needs to perform the following functions:

  1. Keep a track of the Gold and USD token balance for the user.
  2. Allow the user to view orders on the orderbook contract.
  1. Update the orderbook in real time by listening to any buy/sell/trade events that are triggered by the orderbook smart contract.
  2. Allow the user to submit buy and sell requests.
  3. Match the buy/sell requests against existing orders in the orderbook if matching orders are available.
  4. If no matching orders are available, submit a new buy/sell order to the orderbook.

Alright, now let's start building our app. This section assumes basic-to-intermediate knowledge of React.js from the user. The entire React interface can be downloaded from the GitHub repository as follows: