NFT Contract Testing

This project is for the blockchain application NFT Marketplace. It contains code for the Smart Contract, web-based dapp and NodeJS server.

Pre-requisites

In order to develop and build "NFT Marketplace," the following pre-requisites must be installed:

• Visual Studio Code (or any IDE for editing Javascript)
• NodeJS
• Yarn (DappStarter uses Yarn Workspaces)
• Flow CLI (https://docs.onflow.org/flow-cli/install) (after installation run flow cadence install-vscode-extension to enable code highlighting for Cadence source files)

Windows Users

Before you proceed with installation, it's important to note that many blockchain libraries either don't work or generate errors on Windows. If you try installation and can't get the startup scripts to completion, this may be the problem. In that case, it's best to install and run DappStarter using Windows Subsystem for Linux (WSL). Here's a guide to help you install WSL.

Blockchains known to require WSL: Solana

Installation

Using a terminal (or command prompt), change to the folder containing the project files and type: yarn This will fetch all required dependencies. The process will take 1-3 minutes and while it is in progress you can move on to the next step.

Yarn Errors

You might see failures related to the node-gyp package when Yarn installs dependencies. These failures occur because the node-gyp package requires certain additional build tools to be installed on your computer. Follow the instructions for adding build tools and then try running yarn again.

Build, Deploy and Test

Using a terminal (or command prompt), change to the folder containing the project files and type: yarn start This will run all the dev scripts in each project package.json.

File Locations

Here are the locations of some important files:

• Contract Code: packages/dapplib/contracts
• Dapp Library: packages/dapplib/src/dapp-lib.js
• Blockchain Interactions: packages/dapplib/src/blockchain.js
• Unit Tests: packages/dapplib/tests
• UI Test Harnesses: packages/client/src/dapp/harness

To view your dapp, open your browser to http://localhost:5000 for the DappStarter Workspace.

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