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Training REST API - Create Your First APIs in 4 Days

Course created on July 27, 2026Updated on October 5, 2026

On quote$4,620

4 days
Onsite
10 people max.

Request a quote See the program

Ref: NBU255

10 people max.

On quote$4,620

In-company rate: on quotefrom $7,865 for the whole team

On-site and certification exam on quote

4 days

Onsite

Don't let this gap widen

Why this program matters

Without mastering REST APIs, 60% of developers lose up to 20 hours per project on unnecessary debugging of basic HTTP errors, exposing apps to 75% of security vulnerabilities through unsecured APIs per OWASP.
Your web integrations crash, timelines explode by 40%, and unhappy clients flee to agile competitors.
Invest 28h to avoid these costly pitfalls, deploy reliable APIs that speed up your projects by 50%, boost your resume, and gain technical peace of mind from the first implementation.

Trusted by — schools, companies and industrial groups

25,749 programs · 25 countries

Every program built with a dedicated engineer

Companies: Aptar, ArcelorMittal, Equans, EDF, Ubisoft and Microsoft.

Learning objectives

Master the fundamental principles of REST APIs
Identify essential HTTP methods and status codes
Use Postman to test and debug APIs
Design a simple REST API with JSON
Apply best practices for structuring
Manage basic authentication and security
Deploy a functional API in a test environment

Program

Module 1REST API Fundamentals: HTTP Principles and Architecture (Postman, JSON)

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.

Module 2REST API Methods and Statuses: GET, POST, PUT, DELETE (Testing Tools)

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.

Module 3REST API Design: Modeling and Advanced JSON (Practical Exercises)

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.

Module 4REST API Security and Deployment: Authentication, Best Practices

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.

Evaluation method

Daily interactive quizzes, evaluated practical cases, final certifying project (Qualiopi).

Learning method

Active pedagogy with 70% hands-on practice, real exercises, personalized feedback via videoconference.

Methods, materials and delivery

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.

Equipment required

For the smooth delivery of the Training REST API - Create Your First APIs in 4 Days 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 REST API - Create Your First APIs in 4 Days 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

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.

The Learni story

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.

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.

A child walking to school with a backpack

Our social commitment

A school kit donated to a child for every training booked

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.

Backpack, notebooks and essential supplies
Distributed through our partner charities
Included, at no extra cost to you

Enroll and offer a kit

FAQ

Frequently asked questions

Which tools are used in REST API training?+

Hands-on work runs on postman, JSON, testing Tools and practical Exercises. Those tools come from the REST API program itself, delivered on site over 4 days, so participants practise on the stack they will use at work.

What can participants do after REST API training?+

They can master the fundamental principles of REST APIs, identify essential HTTP methods and status codes and use Postman to test and debug APIs. Those are the stated objectives of the REST API program at Beginner level, checked by the end-of-session assessment.

What does the REST API program cover, day by day?+

Day 1: REST API Fundamentals: HTTP Principles and Architecture (Postman, JSON). Day 2: REST API Methods and Statuses: GET, POST, PUT, DELETE (Testing Tools). Day 3: REST API Design: Modeling and Advanced JSON (Practical Exercises). Day 4: REST API Security and Deployment: Authentication, Best Practices. The REST API program runs over 4 days, delivered on site.

How is REST API training assessed?+

Assessment relies on daily interactive quizzes, evaluated practical cases, final certifying project (Qualiopi). Learni issues a completion certificate together with the individual assessment report at the end of the REST API program, which an L&D team can file as evidence.

How much does REST API training cost per participant?+

REST API training is priced on quote. The amount depends on headcount, format and how far the syllabus is tailored to your team. A detailed quote is sent within one business day, and team pricing covers the whole group from the second participant.REST API training costs $4,620 per participant. For an in-company team, the flat rate starts at $7,865 for the whole group, up to 8 people. The detailed quote, sent within one business day, adjusts the amount to the format and how far the syllabus is tailored to your team.

How long does REST API training take?+

4 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.

Who pays for REST API training?+

Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.

What do participants need to know before REST API training?+

Basic knowledge of HTTP, elementary programming knowledge (JavaScript or Python).

Is a certificate issued after REST API training?+

Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.

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