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You're reading from Blockchain Development for Finance Projects Building next-generation financial applications using Ethereum, Hyperledger Fabric, and Stellar

Product type Paperback

Published in Jan 2020

Publisher Packt

ISBN-13 9781838829094

Length 530 pages

Edition 1st Edition

Languages

Solidity

Tools

Blockchain

Concepts

Blockchain

Author (1):

Ishan Roy

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Table of Contents (17) Chapters

Preface

1. Section 1: Blockchain Payments and Remittances

2. Blockchain in Financial Services FREE CHAPTER

3. Building a Blockchain Wallet for Fungible and Non-Fungible Assets

4. Designing a Payment Gateway for Online Merchants

5. Corporate Remittances and Settlement

6. Enabling Cross-Border Remittances with Real-Time KYC/AML Verification

7. Section 2: Blockchain Workflows Using Smart Contracts

8. Building a Letter of Credit Workflow Module Using Smart Contracts

9. Section 3: Securing Digital Documents and Files Using Blockchain

10. Building a Tamper-Proof Document Storage System

11. Section 4: Decentralized Trading Exchanges Using Blockchain

12. Building a Decentralized Trading Exchange

13. Developing a Currency Trading Exchange for Market Making

14. Looking into the Future

15. Other Books You May Enjoy

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Appendix: Application Checklist

Application checklist

Creating the token wallet frontend using ReactJS

Now, let's create a simple wallet app in react.js to manage tokens. The wallet will have the following functionalities:

It will allow the user to send ERC20 and ERC721 tokens.
It can mint new tokens if the address owner is the contract owner for the token. Minting issues new ERC20 or ERC721 tokens and credits them to any Ethereum account on the network.
It will approve an Ethereum account to spend the tokens on the user's behalf. Certain use cases and workflows might require the user account to approve or authorize an external party to debit their account and transfer tokens. The approve functionality allows us to achieve the same.

I am assuming that you will have a basic understanding of the React framework for this project. I'll be focusing on the sections where our app interacts with the token contracts. You...

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Authors (1)

Roy

Krishnendu Roy is an associate professor of computer science at Valdosta State University. Prior to joining VSU, Krishnendu completed his PhD. and M.S. in computer engineering at Louisiana State University, Baton Rouge, LA in 2009 and 2005, respectively. As an MIT App Inventor Master Trainer, Krishnendu taught computing using App Inventor in summer camps for middle and high school students and in CS0 courses at his university. He has conducted in-person App Inventor workshops for teachers, including Google CS4HS and the University of Massachusetts at Boston's BATEC Summer Institute. He has also organized online App Inventor workshops for teachers who were involved in AAUW's Tech Trek camps and mentored national winning teams of Verizon's Innovative App Challenge.

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