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.
1 seat held for the next session
Request a call back and an advisor reaches you within 24 business hours, Monday to Saturday.

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.
Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.
Don't let this gap widen
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.
Discover the basics of REST APIs by exploring the HTTP protocol, resources and URIs. Practice with Postman to send your first GET and POST requests, manipulate JSON data to structure responses and payloads, complete exercises on public APIs like JSONPlaceholder, and produce your first simple API specification that makes you eager to start coding right away.
Dive into essential HTTP verbs, test PUT and DELETE with Postman on mock APIs, analyze status codes 200, 404, 500 to anticipate errors, build complex requests with headers and query params, apply to real cases like a basic e-commerce API, and generate detailed logs that boost your confidence in rapid development.
Design your own REST API by defining endpoints and JSON schemas, use tools like Swagger for visualization, implement a todo-list API with Node.js or Python Flask, integrate pagination and filtering through guided exercises, test in real-time with Postman Collections, and deliver a functional prototype that impresses with its simplicity and immediate effectiveness.
Secure your API with JWT tokens and CORS, deploy on Heroku or Vercel via step-by-step tutorials, optimize performance and handle common errors, review with a final project integrating all concepts, share your live API with the group, and leave with a concrete portfolio and pro tips to excel in REST development starting tomorrow.
The Training REST API - Create Your First APIs in 4 Days program is delivered onsite or remote (blended-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 REST API - Create Your First APIs in 4 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 REST API - Create Your First APIs in 4 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 built for corporate L&D budgets and delivered onsite or remotely.
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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Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
Web DevelopmentIndustry-certified
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Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
Frameworks & LibrariesIndustry-certified
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Data AnalysisIndustry-certified
Data AnalysisIndustry-certified
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Data AnalysisIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.