What is the price of the Training Web3.js - Develop Secure Ethereum DApps training?

The price of the Training Web3.js - Develop Secure Ethereum DApps training is 4200 € HT. This includes access to all modules, training materials and personalized support. Funding solutions are available through OPCO.

Is the training Qualiopi certified?

Yes, Learni is a Qualiopi-certified training organization. This certification guarantees the quality of our courses and enables funding through OPCO and other mechanisms.

What is the duration of the Training Web3.js - Develop Secure Ethereum DApps training?

The Training Web3.js - Develop Secure Ethereum DApps training takes place over 4 days. The program is structured in progressive modules for optimal skill development.

How can I fund my training?

Our courses are eligible for OPCO funding. Learni supports you through the funding process. A personalized quote is available upon request.

What are the prerequisites for this training?

The prerequisites for the Training Web3.js - Develop Secure Ethereum DApps training are: Mastery of JavaScript ES6+, basic knowledge of Ethereum and Solidity, experience in frontend/backend development.. A preliminary interview validates your eligibility.

Is the training available in person?

Yes, the Training Web3.js - Develop Secure Ethereum DApps training is available in remote. The format can be adapted to your needs (inter, intra, custom).

Training Web3.js - Develop Secure Ethereum DApps | Learni

The story of Learni

Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.

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Methods, approaches, and teaching resources

The Training Web3.js - Develop Secure Ethereum DApps training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.

The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.

Teaching resources provided

To ensure the quality of the Training Web3.js - Develop Secure Ethereum DApps training, Learni provides the following teaching resources:

Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, video projector or interactive touchscreen (for remote sessions)
Training environments installed on workstations or accessible online
Course materials, practical exercises, and supplementary resources
Post-training access to materials and teaching resources

For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.

* contact us for remote feasibility** ratio varies depending on the training followed

Assessment methods

The assessment of skills acquired during the Training Web3.js - Develop Secure Ethereum DApps training is carried out through:

During training: case studies, practical exercises, and professional scenarios
At the end of training: self-assessment questionnaire and skills evaluation by the trainer
After training: training completion certificate detailing acquired skills

Training accessibility

Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.

Training access terms and deadlines

Training objectives

Integrate Web3.js into modern JavaScript applications

Interact with Ethereum smart contracts via ABI

Manage transactions, signatures, and blockchain events

Optimize RPC calls for scalable performance

Develop secure and responsive decentralized DApps

Debug and test Web3 integrations in real environments

Deploy functional prototypes connected to the blockchain

Training program

Module 1Web3.js Fundamentals: Setup and Blockchain Connections (MetaMask, Infura)

Dive into Web3.js installation, configure providers for Ethereum mainnet and testnets, make your first blockchain calls via practical exercises on Node.js console, connect MetaMask to sign simple transactions, test live RPC queries, produce a functional connection script ready to integrate.

Module 2Smart Contract Interactions: ABI, Calls and Encoding (ethers.js comparison)

Master loading ABI to interact with deployed contracts, encode and decode functions via Web3.js, simulate read/write calls on Remix and Ganache, develop a concrete exercise querying ERC20 balances, generate real-time event logs, create a basic dashboard displaying on-chain data.

Module 3Advanced Transactions: Gas, Events and Multisig (Hardhat tools)

Manage gas estimation and optimization for cost-effective transactions, listen and filter blockchain events with Web3.js, implement EIP-712 signatures for advanced wallets, test multisig scenarios on Sepolia, analyze transaction failures via debug tools, produce a reusable transactional module for DApps.

Module 4Complete DApps: React Integration, Security and Deployment (Vercel, IPFS)

Integrate Web3.js into a React app for an interactive DApp, secure against reentrancy and front-running via best practices, deploy on Vercel with IPFS pinning for metadata, finalize a capstone project like a functional NFT marketplace, optimize for mobile via WalletConnect, receive a portfolio-ready deliverable with source code.