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.
Learning objectives
- Master the installation and configuration of MSW in a certified professional training
- Develop advanced handlers to simulate realistic APIs in a business setting
- Optimize frontend tests with MSW to accelerate development
- Implement MSW in browser and Node.js modes for versatile skills
- Design complex mocking scenarios tailored to professional needs
- Integrate MSW into CI/CD workflows for increased productivity
- Acquire certified mocking skills to boost your career
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.
Program
Module 1MSW Fundamentals: Installation and Basic Handlers (Node.js, React, Jest)
Discover MSW through quick installation with npm or yarn, configure the worker to intercept HTTP requests, create your first REST handlers to mock simple JSON responses, practice on a real React project with guided exercises, analyze logs for effective debugging, produce a functional MSW setup ready for unit tests, integrate common patterns like delays and simulated errors for an immersive and professional training.
Module 2Advanced MSW: State Management and Dynamic APIs (GraphQL, Conditions)
Dive into predicate handlers for conditional responses based on query params or headers, simulate GraphQL APIs with MSW, manage persistent states via restHandlers and graphqlHandler, apply to real e-commerce cases with mutations and queries, optimize performance with mock databases, complete pair exercises to consolidate skills, deliver a dynamic mocked API prototype usable by teams.
Module 3MSW Integration: CI/CD and Frontend Frameworks (Cypress, Next.js)
Integrate MSW with Cypress for robust E2E tests without a backend, configure for Next.js or Vue with SSR, automate via GitHub Actions for smooth CI/CD, test offline scenarios and network throttling, develop end-to-end test suites with persistent mocks, analyze code coverage, produce automated test reports, apply in groups on an agile project for rapid upskilling and certification.
Module 4MSW Optimization 2026: Best Practices and Troubleshooting (Scalability)
Explore MSW 2026 new features for enhanced scalability, debug common pitfalls like infinite loops or CORS, implement multi-environment MSW for dev/staging/prod, measure dev speed impact with metrics, review via practical workshops and timed challenges, finalize a personal portfolio of advanced mocks, receive personalized feedback for immediate professional expertise in the workplace.
Evaluation method
- Daily interactive quizzes on MSW concepts
- Real-world case studies with group presentations
- Final project: MSW implementation on a complete frontend app
- Qualiopi certified attestation delivered
Learning method
- Active pedagogy with 70% hands-on practice
- Exercises on open-source projects and business cases
- Post-training video support and source code
- Individual mentoring for skill consolidation
Methods, materials and delivery
The Training MSW (Mock Service Worker) 2026 - Mastering Advanced API Mocks 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 MSW (Mock Service Worker) 2026 - Mastering Advanced API Mocks 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 MSW (Mock Service Worker) 2026 - Mastering Advanced API Mocks 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
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
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.
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.
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.
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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