Building Blockchain Projects

The project structure

In the exercise files of this chapter, you will find two directories: Final and Initial. Final contains the final source code of the project, whereas Initial contains the empty source code files and libraries to get started with building the application quickly.

To test the Final directory, you will need to run npm install inside it and replace the hardcoded contract address in app.js with the contract address you got after deploying the contract. Then, run the app using the node app.js command inside the Final directory.

In the Initial directory, you will find a public directory and two files named app.js and package.json. package.json contains the backend dependencies of our app, and app.js is where you will place ...