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Training Ethers.js - Interacting with Ethereum and Web3

Ref: NRJ642
10 people max.
4375€ HT / per person
−15% from 2 people−30% from 3 people−50% from 5 people
Pay in 3 installments · +$170/day onsite · +$500 with certification exam
5 journées
distanciel

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Learning objectives

  • Master the fundamentals of Ethers.js for professional blockchain interactions
  • Develop skills in connecting to Ethereum nodes via providers
  • Implement reading and writing to smart contracts in enterprise settings
  • Design secure frontend DApps integrating Ethers.js
  • Manage transactions, events, and wallets for certified projects
  • Optimize gas costs and deploy in real training environments

The Learni story

Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.

Don't let this gap widen

Why this program matters

  • Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.

  • Organizations that don't train their talents on key topics see their competitiveness drop.

  • Every quarter without training is a gap widening with competitors who invest.

  • The cost of inaction quickly exceeds that of well-targeted training.

Allan Busi
Allan Busi

Learni Trainer · Expert

73%productivity gap
×3cost of inaction

Program

Module 1Ethers.js Fundamentals: Installation and First Ethereum Providers (Node.js, MetaMask)

Quick installation of the Ethers.js v6 environment in Node.js, connection to public providers like Infura or Alchemy, creation of a first wallet via ethers.Wallet, exploration of the Ethereum mainnet and testnets blockchain, practical exercises on retrieving ETH and ERC20 token balances, development of a simple block reading script with personalized code review to validate your professional skills from the first day.

Module 2Ethers.js Connection: Managing Contracts and ABI (Hardhat, Remix)

Loading ABI of existing smart contracts via Ethers.js, instantiation of Contract instances to interact with DeFi protocols like Uniswap, writing read-only functions for real-time queries, setting up a Hardhat project integrated with Ethers.js, real business cases on querying past events, production of a basic dashboard displaying on-chain data to demonstrate immediate value in certified training.

Module 3Ethers.js Transactions: Signatures and Secure Sending (Wallets, Gas)

Generation and signing of transactions with ethers.Signer, estimation and optimization of gas fees to avoid overcosts, sending transactions to ERC721 and ERC1155 smart contracts, simulation of NFT minting operations on Sepolia testnet, management of confirmations and receipts via waitForTransaction, exercises on real business scenarios like tokenized payments, delivery of an automated script ready for enterprise production.

Module 4Ethers.js Events: Listening and Parsing in DApps (Frontend React, Vite)

Setup of event listeners with ethers.Interface and provider.on, parsing Transfer logs for ERC20 tokens live, integration of Ethers.js into a React frontend app via Vite, development of a user interface reactive to on-chain changes, practical cases on multicall for batching queries, creation of a red thread project with real-time notifications, highlighting your Web3 skills for rapid professional deployments.

Module 5Ethers.js Deployment: Optimization and Security in Production (Vercel, IPFS)

Deployment of a complete Ethers.js DApp on Vercel with MetaMask wallet connection, advanced gas optimization via batching and multicall, security audit of contract interactions to prevent reentrancy, end-to-end tests on mainnet fork via Hardhat, finalization of the red thread project with complete documentation, provision of certifying resources and action plan to integrate Ethers.js into your enterprise projects right after the training.

Evaluation method

  • Multiple-choice quiz to validate learning outcomes at the end of the training
  • Continuous assessment through practical blockchain exercises
  • Presentation of the red thread Ethers.js DApp project

Learning method

  • Courses led by an active blockchain expert trainer
  • Practical exercises on real Web3 and Ethereum cases
  • Progressive red thread project with Ethers.js throughout
  • Complete course materials and on-chain resources provided

Methods, materials and delivery

The Training Ethers.js - Interacting with Ethereum and Web3 program is delivered onsite or remote (blended-learning, e-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.

The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.

Equipment required

For the smooth delivery of the Training Ethers.js - Interacting with Ethereum and Web3 program, the following equipment is required:

  • Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
  • Training environments installed on workstations or accessible online
  • Course materials, hands-on exercises and complementary resources
  • Post-training access to materials and educational resources

For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.

* contact us for remote delivery feasibility** ratio varies depending on the program

Skills assessment methods

Assessment of skills acquired during the Training Ethers.js - Interacting with Ethereum and Web3 program is performed through:

  • During training: case studies, hands-on labs and professional scenarios
  • End of training: self-assessment questionnaire and skills evaluation by the trainer
  • After training: completion certificate detailing acquired skills

Program accessibility

Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.

Enrollment terms and lead times

Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.

Verified reviews

What our learners

4.9 · +100 verified reviews
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
★★★★★

« cool, j'ai appris des trucs »

TomFormation AWS — Cloud Practitioner
★★★★★

« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »

Eva CarpentierFormation LLM en Entreprise — Claude, ChatGPT, Mistral
★★★★★

« la formation dev etait intense mais grave bien. merci Anthony Khelil »

NolanDWWM - Développeur Web et Web Mobile
★★★★★

« 😊👍 »

AmbreDWWM - Développement Web & Mobile React
★★★★★

« bien 👍 »

Léo BlanchardFormation AWS — DevOps Engineer Professional
★★★★★

« Allan Busi t'es au top, continue comme ça. formation géniale »

MargotFormation Claude & ChatGPT — Comparatif et Cas d'Usage
Read all reviews
Our method

Training quality, guaranteed at every step

Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.

Step 1

Rigorous trainer selection

Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.

  • Triple validation: technical, pedagogical, sectoral.
  • Minimum rating 4.8/5 over the last 12 sessions.
Step 2

You meet the trainer beforehand

30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.

  • Live briefing on goals and team context.
  • Veto right — we swap the trainer for free if needed.
Step 3

Content tailored to your context

No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.

  • Hands-on cases drawn from your stack and projects.
  • Program co-written then validated by your team.
Step 4

Continuous quality follow-up

Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.

  • NPS, knowledge quizzes and skills self-assessment.
  • Satisfaction guarantee: fully satisfied or free rework.

A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.

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