Web Services

  • Custom Web Development for Competitive Advantage
Course Overview

This Web Services program provides in-depth knowledge of how applications communicate with each other over the internet using standardized protocols. Participants will learn to design, develop, consume, secure, and deploy modern web services using REST, SOAP, JSON, XML, and API technologies, with real-world use cases and hands-on examples.

Course Objectives

By the end of this course, learners will be able to:

  • Understand the architecture and working of web services
  • Build and consume RESTful and SOAP web services
  • Work with APIs, JSON, XML, and HTTP methods
  • Implement security, authentication, and error handling
  • Integrate web services with front-end and back-end applications
  • Deploy and test web services in real-time environments
Course Content
  • What are Web Services?
  • Evolution of distributed applications
  • Client-Server architecture
  • Need for Web Services in modern applications
  • Types of Web Services
  • Real-world examples (Banking, E-commerce, Mobile Apps)
  • Service-Oriented Architecture (SOA)
  • Components of Web Services
  • Service Provider, Service Consumer, Service Registry
  • Communication flow in Web Services
  • Stateless vs Stateful services
  • HTTP & HTTPS
  • XML – Structure, Syntax, Parsing
  • JSON – Structure, Advantages over XML
  • MIME types
  • SOAP protocol basics
  • REST principles overview
  • What is SOAP?
  • SOAP architecture
  • SOAP message structure
  • SOAP Envelope, Header, Body
  • WSDL (Web Services Description Language)
  • UDDI (Universal Description, Discovery, and Integration)
  • Advantages and limitations of SOAP
  • SOAP vs REST comparison
  • What is REST?
  • REST architectural principles
  • HTTP methods (GET, POST, PUT, DELETE, PATCH)
  • RESTful URI design
  • Stateless communication
  • REST response codes (200, 201, 400, 401, 404, 500)
  • REST best practices
  • Introduction to APIs
  • API lifecycle
  • Designing APIs
  • Consuming APIs using tools and code
  • API versioning
  • Rate limiting & throttling
  • Public vs Private APIs
  • Working with JSON
  • Working with XML
  • Request & Response payloads
  • Serialization and Deserialization
  • Data validation techniques
  • Importance of security in Web Services
  • Authentication vs Authorization
  • Basic Authentication
  • Token-based authentication
  • OAuth 2.0 overview
  • API keys
  • HTTPS and SSL/TLS
  • Common security threats & prevention
  • HTTP error codes
  • Designing meaningful error responses
  • Exception handling strategies
  • Logging and monitoring
  • Debugging Web Services
  • Importance of testing
  • Manual testing using tools (Postman / SoapUI)
  • Automated testing overview
  • Functional testing
  • Performance testing basics
  • Security testing basics
  • Integration with Web applications
  • Integration with Mobile applications
  • Integration with Enterprise systems
  • Third-party service integration
  • Microservices overview
  • Web Services in cloud applications
  • Hosting Web Services
  • Deployment strategies
  • Environment configurations
  • Version control
  • Real-time case studies
  • Industry use cases and project discussion
  • Design a RESTful Web Service
  • CRUD operations
  • API testing
  • Security implementation
  • Deployment demo
  • End-to-end integration
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