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WEB3 Examples

WEB3 Examples is a public code repository of Web3 learning projects spanning front ends, smart contracts, backend examples, and general blockchain concepts. Its directories include Ethereum token and NFT contracts with a frontend, a Bitcoin.js example, a Solana Pyth price-feed DApp, and a TON wallet.

Explore the practical guide ↓

Independent OpenViST project profile, based on linked sources.

WEB3 Examples — OpenViST project profile in Developer Tools.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when you want to study or adapt a concrete Web3 project example and can follow that project’s own setup requirements.

Who it is for

  • Developers learning Web3 through project code
  • Developers looking for ecosystem-specific examples to study or adapt

Documented uses

  • Inspect example structures for Ethereum, Bitcoin, Solana, or TON projects
  • Study Ethereum frontend and smart-contract setup
  • Use a token, NFT, price-feed, or wallet example as a learning starting point
Before you choose

Requirements & limits

  • The repository groups examples across Ethereum, Bitcoin, Solana, TON, and general blockchain topics.
  • The Ethereum frontend setup requires an Alchemy API key; contract setup calls for an Infura project key.
  • The Solana example points to a separate project README for its instructions.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Prepare and start the Ethereum frontend

Configure the documented Ethereum frontend prerequisites and launch its local development server.

Before you start

  • An Alchemy API key
  • The repository’s Ethereum frontend files
  • Node.js/npm environment

Steps

  1. In ethereum/frontend, rename .env.example to .env and fill in the required configuration.

  2. Obtain at least one API key from Alchemy.

  3. From the ethereum/frontend directory, run the command below.

    Documented command
    npm i

  4. Run the command below from that directory.

    Documented command
    npm run dev

Expected outcome

The README’s documented local development-server startup sequence is complete.

Guide limitations

  • The README does not specify the required environment-variable values.
  • The repository describes other ecosystem examples separately; their setup steps are not covered by this guide.
Documentation 1 ↗
Source-based practical guide

Prepare the Ethereum contract project

Complete the documented configuration prerequisites for Ethereum smart-contract development.

Before you start

  • The repository’s Ethereum contract files
  • An Infura project key

Steps

  1. In ethereum/contract, rename .env.example to .env and fill in the required configuration.

  2. Obtain at least one project key from Infura.

  3. Use Truffle for smart-contract development, as directed by the README.

Expected outcome

The stated configuration prerequisites are in place and the README identifies Truffle as the development tool.

Guide limitations

  • The README does not provide contract execution, testing, or deployment steps in this section.
Documentation 1 ↗
Evidence and transparency

Sources & review

Official repository ↗
Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
luzhenqian/web3-examples · Official homepage title · retained in its source language
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