API Testing and Performance
Validate microservices architectures through comprehensive API testing and performance analysis
Course Overview
This training program addresses the testing requirements of service-oriented architectures where application functionality distributes across multiple API endpoints. Participants learn validation techniques for REST services, contract verification methods, and performance characterization approaches.
The curriculum covers functional API testing using Postman and RestAssured, load simulation with JMeter, and GraphQL query validation. Students work with microservices environments, implementing test scenarios that verify service contracts, response schemas, and system behavior under various load conditions.
Course content includes authentication testing, error handling verification, and performance baseline establishment. Participants complete projects involving payment gateway testing, inventory management APIs, and notification service validation across different performance profiles.
Course Duration
7 weeks with flexible scheduling options including weekday evenings and full-day weekend sessions
Format Options
Live instruction available through in-person attendance at Tokyo facility or remote participation via conferencing platform
Class Size
Maximum 12 participants to maintain practical hands-on focus and individual guidance availability
Career Development Outcomes
Technical Proficiency
Graduates acquire competency in creating automated test suites for API validation that execute in continuous integration pipelines. Skills include writing assertions for response codes, validating JSON schemas, and implementing contract tests that detect breaking changes between service versions.
Course completion provides practical experience with performance testing methodologies, including load generation, response time analysis, and throughput measurement. Students learn to identify performance bottlenecks through systematic testing and metric interpretation.
Professional Applications
These capabilities apply directly to organizations implementing microservices where API reliability affects system functionality. QA professionals with API testing skills support backend development teams by validating service contracts and detecting integration issues during development cycles.
Performance testing skills enable participation in capacity planning activities and production readiness assessments. Organizations benefit from staff capable of establishing performance baselines and validating system behavior under expected load conditions.
Practical Experience
Course projects involve testing authentication workflows, data retrieval endpoints, and transaction processing services. Students implement load tests that simulate concurrent user scenarios and analyze performance metrics to identify optimization opportunities.
Tools and Technologies
API Testing Frameworks
- • Postman for exploratory API testing and collection management
- • RestAssured library for programmatic API test automation
- • Newman for CI/CD integration of Postman collections
- • SoapUI for SOAP service testing and validation
Performance Testing Tools
- • Apache JMeter for load testing and performance measurement
- • Gatling for high-performance load simulation scenarios
- • K6 for modern performance testing with scripting capabilities
- • Locust for distributed load generation and testing
Validation Libraries
- • JSON Schema validator for response structure verification
- • Pact for consumer-driven contract testing implementation
- • Hamcrest matchers for readable assertion creation
- • AssertJ for fluent assertion syntax in Java tests
Monitoring and Analysis
- • Grafana for performance metrics visualization and dashboards
- • BlazeMeter for cloud-based load testing execution
- • Wireshark for network traffic analysis and debugging
- • Charles Proxy for HTTP request inspection and modification
Testing Standards and Practices
Contract Testing Methodology
Instruction covers consumer-driven contract testing approaches that verify service compatibility without requiring full integration environments. Students learn to define contracts between service consumers and providers, implementing verification tests that detect breaking changes early in development cycles.
Course material addresses contract versioning strategies and managing contract evolution as services change. Participants implement Pact contracts for multiple consumer-provider relationships.
Performance Baseline Establishment
Training includes systematic approaches to establishing performance baselines that serve as comparison points for regression testing. Students learn to define meaningful performance metrics, conduct baseline measurements under controlled conditions, and document results for future validation.
Course content addresses identifying performance degradation through statistical analysis and threshold-based alerting configured in monitoring systems.
Security Testing Fundamentals
Curriculum includes basic security validation techniques relevant to API testing. Students learn to verify authentication mechanisms, test authorization boundaries, and validate input sanitization. Training covers common security vulnerabilities in API implementations and testing approaches for detection.
Intended Participants
Backend Developers
Developers building API services benefit from understanding testing approaches that validate service behavior. The course provides perspective on testable API design and helps developers implement services that support automated validation.
QA Engineers
Test professionals working with microservices architectures acquire specialized skills for API validation. The curriculum addresses challenges specific to testing distributed systems where traditional UI testing approaches have limited effectiveness.
DevOps Practitioners
Operations professionals implementing continuous delivery pipelines learn to integrate automated API tests that provide rapid feedback on service changes. Training includes performance testing automation relevant to deployment validation processes.
Performance Analysts
Professionals focused on application performance gain systematic approaches to load testing and performance characterization. Course content supports establishing performance requirements and validating system behavior under various conditions.
Progress Evaluation Methods
Weekly Practical Assignments
Each module includes practical exercises where students implement specific testing scenarios. Assignments involve creating API test collections, writing contract tests, or designing load testing scripts depending on the module focus. Instructors review submissions and provide detailed feedback on implementation approaches.
Exercises progressively increase in complexity, requiring integration of concepts from multiple modules as the course advances.
Final Validation Project
The concluding project requires implementing comprehensive testing for a multi-service application. Students create functional API tests, establish contract verification, conduct performance characterization, and document findings. Projects demonstrate ability to apply systematic testing approaches to complex service architectures.
Evaluation considers test coverage, performance analysis quality, documentation completeness, and implementation of appropriate testing patterns for different service types.
Competency Documentation
Course completion certificates detail specific competencies demonstrated during training. Documentation outlines API testing methodologies, performance testing techniques, and tools covered during the program. This provides concrete information for professional development records.
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Prerequisites
Understanding of HTTP protocols, basic programming knowledge, familiarity with JSON data format