Spring, JPA, and Testing Existing Microservices — PickAClass
⏱ 3h 📚 30 lessons 🎧 Audio version

Spring, JPA, and Testing Existing Microservices

Gain the skills to develop and rigorously test Spring applications that utilize JPA, preparing you to confidently manage and modernize existing microservice architectures.

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About this course

Working with existing microservices presents unique challenges, especially when integrating new features or ensuring stability. This course equips you with the foundational knowledge of Spring, JPA, and comprehensive testing to confidently navigate these complex environments. By the end of this course, you will understand the core principles of Spring and JPA for data persistence, and be able to apply robust testing strategies to ensure the reliability and maintainability of microservice architectures. You will gain the ability to analyze, extend, and effectively test existing Spring-based microservices, preparing you for real-world development tasks. What you'll learn: Understand the core principles of the Spring Framework and Spring Boot. Apply Java Persistence API (JPA) for efficient data management in Spring applications. Master comprehensive testing techniques for Spring components and services using JUnit and Mockito. Analyze and approach existing microservice architectures for effective testing and extension. Configure basic containerization concepts for packaging and deploying Spring microservices with Docker. Implement best practices for dependency management and project setup using Maven or Gradle. The course begins with an introduction to Spring fundamentals and moves into practical application of JPA for data persistence. It then delves into various testing methodologies crucial for microservices, concluding with guidance on approaching and enhancing existing microservice deployments. This course is designed for absolute beginners with some basic Java programming knowledge, looking to build a strong foundation in Spring, JPA, and microservice testing. No prior experience with Spring, JPA, or microservices is required. Start your journey to becoming a proficient Spring and microservice developer today.

What you'll get

  • 📜 Certificate of completion
    Add it to your LinkedIn profile
  • 💬 Personal AI tutor
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  • 🎧 Audio version included
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  • ♾️ Lifetime access
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • Short & focused
    3h of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
Skills profile · verifiable
Document
Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Spring, JPA, and Testing Existing Microservices
Skills demonstrated
Behavioral pattern analysis
Foundational
1.2 hrs
Decision-architecture frameworks
Proficient
1.4 hrs
A/B test design
Proficient
1.7 hrs
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
Spring, JPA, and Testing Existing Microservices
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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Frequently asked

What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

How do I pay? +

By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

How long will I have access? +

Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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