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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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The Training OpenFeign: Mastering REST Microservices Integration (Complete) training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Training OpenFeign: Mastering REST Microservices Integration (Complete) training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Training OpenFeign: Mastering REST Microservices Integration (Complete) training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
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.
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.
Target audience
Java developers, software architects, and technical teams wishing to automate communication between microservices via OpenFeign
Prerequisites
Solid knowledge of Java and Spring Boot basics
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