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.

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 Ethers.js - Integrating the Ethereum Blockchain in the Enterprise training are: Mastery of JavaScript ES6+, knowledge of Ethereum, Solidity, and Web3. A preliminary interview validates your eligibility.

Is the training available in person?

Yes, the Training Ethers.js - Integrating the Ethereum Blockchain in the Enterprise training is available in distanciel. The format can be adapted to your needs (inter, intra, custom).

Training Ethers.js - Integrating the Ethereum Bl... | 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 Ethers.js - Integrating the Ethereum Blockchain in the Enterprise 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 Ethers.js - Integrating the Ethereum Blockchain in the Enterprise 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 Ethers.js - Integrating the Ethereum Blockchain in the Enterprise 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 objectives

Master Ethers.js providers for reliable blockchain connections

Develop advanced interactions with smart contracts in an enterprise setting

Implement wallet management and secure transactions

Design high-performance dApps with events and ABI

Optimize multicall calls to reduce gas costs

Deploy certifying applications connected to Ethereum

Acquire professional skills in Ethers.js for 2026

Training program

Module 1Ethers.js Fundamentals: Configuration and Providers (Node.js, Hardhat, ethers v6)

Quick installation of Ethers.js v6 in a professional development environment, connection to various providers like Infura or Alchemy for Mainnet and testnets testing, exploration of key blockchain Virtual DOM concepts and BigNumber management, practical exercises on reading ETH and ERC20 token balances, creation of a first interaction script with code review to validate enterprise best practices.

Module 2Ethers.js Wallets and Transactions: Signing and Broadcasting (signers, overrides)

Configuration of HD wallets and secure private key imports via Ethers.js, signing of custom transactions with optimized gas limits and nonces, simulation of broadcasts on Sepolia to avoid losses, implementation of batch transactions for efficiency, concrete cases of token transfers and multisig interactions, production of detailed logs and Etherscan monitoring for professional traceability.

Module 3Ethers.js Smart Contracts: ABI, Calls, and Events (ContractFactory, Interface)

Generation and use of ABI to interact with deployed contracts, read-only and write calls via dynamic contract instances, real-time event listening with filters and past logs, development of a simple dApp connected to an NFT contract, exercises on return decoding and parameter encoding, integration with React frontend for a smooth and scalable user experience.

Module 4Advanced Ethers.js 2026: Multicall, Upgrades, and Optimization (Bundler, Account Abstraction)

Implementation of multicall to batch requests and reduce RPC costs by 5x, preparation for 2026 standards like ERC-4337 with Ethers.js bundlers, proxy contract migration and secure upgrades, advanced gas optimization with populateTransaction, finalization of the red thread project with deployment on Vercel and IPFS, expert code review and production integration plan to boost your blockchain skills.