Training OpenFeign: Mastering REST Microservices Integration (Complete)

$2,310

  • 2 days
  • Onsite
  • 8 people max.
Ref: PRN611
8 people max.
$2,310
In-company rate: from $4,190 for the whole team
On-site and certification exam on quote
2 days
Onsite

Don't let this gap widen

Why this program matters

  • Without mastery of REST microservices integration via OpenFeign, 70% of production incidents stem from faulty HTTP communications, tripling downtime.

  • Companies lose an average of 85 000 € per major incident, with developers wasting 45% of their time on manual debugging instead of innovating.

  • These failures slow deployments, expose security vulnerabilities, and undermine scalability, threatening competitiveness and your career advancement.

  • Every quarter without expertise worsens these losses, turning ambitious projects into costly failures.

Imed BEN AMOR, Learni trainer · Development expert
Imed BEN AMOR

Learni trainer · Development expert

73%productivity gap
×3cost of inaction
Flag of the United StatesBuilt for US teams
Payment by wire transferEnhanced confidentialityPerfect for companies with 50 to 500 employeesScheduling to fit any time zone

Trusted by — schools, companies and industrial groups

25,806 programs · 25 countries

  • Aptar
  • ArcelorMittal
  • Equans
  • EDF
  • Ubisoft
  • Microsoft

Every program built with a dedicated engineer

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

OpenFeign training objectives

  • Understand the role of OpenFeign in a microservices architecture
  • Create type-safe HTTP clients in Java
  • Configure and secure communications between microservices
  • Integrate OpenFeign with Spring Cloud for fault tolerance and service discovery
  • Manage errors, retries, and timeouts with OpenFeign

OpenFeign curriculum: 2 modules over 2 days

Module 1 : OpenFeign Fundamentals and Initial Integration

Presentation of OpenFeign and its uses. Contextualization in a microservices architecture. Creating and configuring a Spring Boot project using OpenFeign. Implementing first type-safe HTTP clients to third-party APIs. Feign annotations (@FeignClient, @RequestLine, etc.). Demos and coding exercises for simple REST API calls.

Module 2 : Advanced Customization, Error Management, and Resilience

Configuring custom mappings, transmitting complex parameters, managing JSON/XML payloads. Service discovery with Spring Cloud (Eureka/Consul). Implementing timeouts and automatic retries. Circuit Breaker integration (Hystrix/Resilience4j). Strategies for securing exchanges (OAuth2/JWT). Simulations of failures and network latency. Review of real-world experiences and integration workshop.

How OpenFeign skills are assessed

  • Multiple-choice quizzes on the understanding of OpenFeign and its use cases
  • Practical implementation exercises with code review

How the OpenFeign course is taught

  • Interactive presentations and live demonstrations
  • Progressive hands-on exercises on real-world cases
  • PDF training materials provided to each participant

OpenFeign training: access and practical arrangements

The Training OpenFeign: Mastering REST Microservices Integration (Complete) 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 OpenFeign: Mastering REST Microservices Integration (Complete) 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 OpenFeign: Mastering REST Microservices Integration (Complete) 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

How Learni guarantees the quality of your OpenFeign training

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

OpenFeign: frequently asked questions

What can participants do after OpenFeign: Mastering REST Microservices Integration (Complete) training?+
They can understand the role of OpenFeign in a microservices architecture, create type-safe HTTP clients in Java and configure and secure communications between microservices. Those are the stated objectives of the OpenFeign: Mastering REST Microservices Integration (Complete) program at Intermediate level, checked by the end-of-session assessment.
What does the OpenFeign: Mastering REST Microservices Integration (Complete) program cover, day by day?+
Day 1: OpenFeign Fundamentals and Initial Integration. Day 2: Advanced Customization, Error Management, and Resilience. The OpenFeign: Mastering REST Microservices Integration (Complete) program runs over 2 days, delivered on site.
How is OpenFeign: Mastering REST Microservices Integration (Complete) training assessed?+
Assessment relies on multiple-choice quizzes on the understanding of OpenFeign and its use cases and practical implementation exercises with code review. Learni issues a completion certificate together with the individual assessment report at the end of the OpenFeign: Mastering REST Microservices Integration (Complete) program, which an L&D team can file as evidence.
How much does OpenFeign: Mastering REST Microservices Integration (Complete) training cost per participant?+
OpenFeign: Mastering REST Microservices Integration (Complete) training costs $2,310 per participant. For an in-company team, the flat rate starts at $4,190 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 OpenFeign: Mastering REST Microservices Integration (Complete) training take?+
2 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 OpenFeign: Mastering REST Microservices Integration (Complete) 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 OpenFeign: Mastering REST Microservices Integration (Complete) training?+
Solid knowledge of Java and Spring Boot basics.
Is a certificate issued after OpenFeign: Mastering REST Microservices Integration (Complete) 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.
Does Learni provide the equipment for OpenFeign: Mastering REST Microservices Integration (Complete) training?+
No. A computer and a stable internet connection are required for each participant. Learni provides the learning platform, the trainer and all course materials.
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