Introduction to APIs and Web Services

About this course

Modern systems seldom work in isolation. A web service is a software component that exposes data or functionality so that other systems can use it. Web services make it faster and easier to connect different applications, even when they use different technologies. They are a fundamental part of modern system integration, APIs, microservices, and cloud-based architectures.

This one‑day course gives you a clear, practical introduction to the architecture behind web services. You will learn how web services work, the standards they rely on, and the key ideas that make them secure and reliable. The course explains the difference between SOAP and RESTful services, and how data is exchanged using formats like XML and JSON.

By the end of the course, you will understand how web services support system integration, and how to choose the best approach for your organisation.


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Delegate feedback

Feedback from delegates who have attended this course or the 5-day Web Services course:
This is a great Web Services course. The structure & technical depth is ideal for developers.

E. Letebele

Standard Bank of South Africa (SBSA) Lecturer: Lewis Classroom training
Lewis was great in presenting the course material in a clear manner. It was also very helpful how he would provide technical background on the building blocks on which the course material is built. Incus Data has made a great transition from classroom-based training to virtual training, and this really works for me. I can strongly recommend their courses.

R. van Suilichem

Private Lecturer: Lewis Virtual training
The course is very informative and in-depth, which is great.

N. Khumalo

Paycorp Lecturer: Lewis Classroom training
This course was extremely informative, got extra out of it. Lewis is very knowledgeable, it was great learning from him.

D. Abrahams

Standard Bank of South Africa (SBSA) Lecturer: Lewis Classroom training
Even though Lewis had an injured leg, he still delivered a brilliant course. Hats off to Lewis!

M. Kadir

ABSA Lecturer: Lewis Classroom training
Lewis has the ability to simplify complex concepts and make it easy to understand. (1 day Overview)

G. Naicker

Standard Bank of South Africa (SBSA) Lecturer: Lewis Classroom training
Great course, will recommend it to a person.

O. Lehong

Standard Bank of South Africa (SBSA) Lecturer: Lewis Classroom training
Excellently explained in detail. Very satisfactory and I really enjoyed the course. Thumbs up.

A. Anosike

Private Lecturer: Lewis Classroom training
Excellent environment. Excellent lecturer.

O. Chakanyuka

FBC Holdings Ltd Lecturer: Lewis Classroom training

Intended audience

This course is useful if:
  • You are a developer who needs to understand how web services and APIs enable communication between systems.
  • You are a project leader responsible for projects that involve system integration or service-based architectures.
  • You are a technical manager or architect evaluating how web services can support system integration and modern application architectures.

Prerequisites

There are no formal prerequisites for this course. Familiarity with software systems and basic programming concepts will, however, be beneficial.

Course details

Price: R3,700 excluding VAT per delegate. Included:
  • Electronic course material.
  • Attendance certificate (PDF).
Duration: 1 day. Delivery: Virtual classroom See how virtual training works. See the course schedule for upcoming dates.

Booking information

Email your booking to info@incusdata.com. A purchase order, or completed enrolment form is sufficient. We will confirm the booking and issue an invoice.

Course contents

Web Services and System Integration

  • Why organisations use web services to integrate systems.
  • Common enterprise integration scenarios.
  • Service-oriented architectures (SOA) vs resource-oriented architectures (ROA).
  • SOAP-based services vs RESTful APIs.
  • When to use SOAP and when to use REST.
  • Architectural considerations when exposing services.
  • Best practices for designing web services.

SOAP Web Services Architecture

  • SOAP architecture and standards.
  • Web Services Interoperability (WS-I) and interoperability challenges.
  • Web Services Description Language (WSDL).
  • Contract-first vs code-first service design.
  • SOAP message structure and the SOAP envelope.
  • Security, reliability, and other WS-* extensions.
  • Designing and consuming SOAP web services.

RESTful Web Services and APIs

  • REST architectural principles.
  • Using HTTP effectively: methods, headers, status codes.
  • Mapping HTTP methods to CRUD operations.
  • Designing clear and maintainable REST URLs.
  • Data representations: XML, JSON, and other formats.
  • API description standards such as OpenAPI and RAML.
  • Designing and consuming RESTful APIs.

Download the course outline

Download the Introduction to APIs and Web Services course outline in PDF format.

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