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.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
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
Without mastering Express, 70% of junior devs lose 15h/week on basic boilerplate code, leading to API projects that crash 40% in production and frustrated clients fleeing to competitors.
Your salaries stagnate below 35k€/year, while 60% of backend job offers require Express from the start.
Risk of burnout coding from scratch: deadlines x2, incessant bugs costing 25% of project revenue.
With this training, avoid these pitfalls, boost productivity x3, land freelance gigs at 500€/day, and enter the top 20% of in-demand Node.js devs.
Discover Express.js by installing Node.js and npm, create your first functional HTTP server, test simple GET routes with Postman, complete exercises on JSON responses, and produce a ready-to-use basic server, while gaining immediate confidence to code your own backend apps.
Dive into Express routing, define parameterized routes for a REST API, handle 404 errors with built-in middleware, practice on real cases like user CRUD, test with Thunder Client, and deliver a modular router that accelerates your future developments.
Master Express middlewares to parse JSON, secure with Helmet against XSS, manage CORS for frontend integration, code custom middlewares for logs and basic auth, apply to a simulated e-commerce project, and obtain a production-ready, team-secure server.
Connect Express to MongoDB via Mongoose, model schemas for products and users, implement persistent CRUD operations, manage validations and advanced queries, test on real data from a blog API, and deploy a fully operational full-stack backend that impresses recruiters.
Finalize your complete REST API, optimize performance with PM2, deploy live on Heroku or Vercel, debug common errors, integrate unit tests with Jest, present your portfolio-ready deliverable, and leave with a professional project to showcase on LinkedIn tomorrow.
The Training Express - Create High-Performing REST APIs in 5 Days 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.
For the smooth delivery of the Training Express - Create High-Performing REST APIs in 5 Days program, the following equipment is required:
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.
Assessment of skills acquired during the Training Express - Create High-Performing REST APIs in 5 Days program is performed through:
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.
Registration is possible up to 48 business hours before the start of training. All our programs are eligible for corporate training budgets and employer-funded plans.
« 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 »
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.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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Analyse de DonnéesIndustry-certified
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Analyse de DonnéesIndustry-certified30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.