APIs training

Design reliable, modern systems using APIs (Application Programming Interfaces). Discover how digital tools communicate to support robust applications and services.

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Overview Why APIs? APIs explained FAQs What our customers say Your study options

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Learn essential skills

Gain practical API development skills

APIs are the building blocks of modern software. They enable different systems to communicate, making everything from apps and websites to cloud services work seamlessly together.

Whether you're developing scalable web services or connecting backend systems, these courses will equip you with the skills needed to implement, secure and test APIs that deliver real business value. Once complete, the training will help build your confidence and enhance your technical proficiencies using REST APIs and GraphQL.

Why choose APIs?

APIs enable apps to interact and exchange data. REST and GraphQL are key technologies that support today's web, cloud and mobile platforms. Developing your in-depth knowledge of API architecture will enable you to perform efficient and precise data management and manage complex systems and microservices. Completing API training will help you to choose the right API architecture to suit each project you work on.

What’s in it for me?

Learn effective API design
Build robust REST and GraphQL systems
Use Java, Python or JavaScript
Understand JSON, HTTP and data formats
Implement secure, scalable endpoints
Explore tools and client interfaces
Apply best practices for performance

APIs courses explained

REST APIs

GraphQL

REST APIs

Our REST APIs course helps you build, structure, and secure real-world web services. You’ll cover essential topics including HATEOAS, idempotence and authentication, with hands-on projects in Java, Python or JavaScript. By the end of the course, you’ll have learnt how to build and maintain REST services, understand how they work, and be able to build a robust and effective API architecture.

GraphQL

Learn to deliver targeted data via GraphQL with precision and efficiency. This practical course walks you through query creation, type design and schema development using industry tools like Apollo and Ariadne. You’ll also learn how to build a simple GraphQL service using Spring Boot (Java), Ariadne (Python), or Apollo (JS). Plus, master GraphQL client construction using HttpClient (Java), GQL (Python), or Apollo (JS).

APIs courses

APIs

Course

REST APIs

From £1,200.00

FAQs

Our API courses teach you how to connect digital systems and build services that meet real-world API standards, including REST and GraphQL.

How do APIs support web development?

APIs play a crucial role in web development by enabling communication between the front-end and back-end. They streamline integration with third-party services such as payments, maps, and authentication, reducing development time and complexity. In short, APIs are essential for building dynamic, responsive, and feature-rich web experiences.

How do REST and GraphQL compare?

REST and GraphQL are both approaches to building APIs, but they differ in structure, flexibility and efficiency. REST is ideal for straightforward resources, whereas GraphQL gives more control in dynamic applications.

Our courses explore both technologies, providing the option for you to choose.

Is this training interactive?

Yes. ILX delivers all API sessions through our live virtual classroom study option. These courses offer direct trainer support and hands-on exercises. You’ll be able to ask questions when you need and gain expert feedback as you develop your knowledge throughout the course.

How will these courses help my career development?

ILX’s API courses give you the practical skills and understanding needed to work confidently with both REST and GraphQL – two of the most widely used technologies in modern web development. By learning how to design, build and manage APIs effectively, you’ll become more valuable to employers looking for developers who can create scalable, connected systems.

Career development & support

Continuing your learning journey

API training can help you take the next step in your software development career. Whether you're working on integrations, building web services, or aiming to create more connected applications, understanding APIs is a vital skill. This course will enhance your ability to design, use, and manage APIs effectively. Want to see how API expertise fits into your wider goals? Head to our career development section for more pathways.

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Webinars, blogs, videos and more!

Our resource centre has lots of extra content available, all designed to improve your learning experience and to provide more insight into the subject areas covered by our courses and career paths. Sign up for our latest webinar, read a whitepaper, listen to a blog or watch a video. There’s something for everyone!

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What our customers say

Testimonial

Impressive industry expertise

“Alan is a wonderful lecturer and an expert within the field. I learned a lot and built on top of my previous knowledge about key principles and concepts. He has a great pace, allowing the rest of group and me to work on practical exercises after learning a new topic to consolidate the learning and ask any questions. I really enjoyed the course and am looking forward to learning more from Alan for future courses.”

- Abdulmalik, MSc Graduate programme Trainee Software - Government

Your study options

Live virtual classroom

Our virtual courses provide the personal teaching experience of a classroom with the ease and flexibility of a virtual environment. All the benefits, without the travel!

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Classroom

Our in-person classroom courses provide an interactive and collaborative learning environment, where you will benefit from the knowledge and passion our trainers bring to the subject.

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Onsite

For our business clients we run onsite classroom courses at your location. Delivered by expert instructors, these sessions are tailored to your team's specific needs, ensuring impactful, real-world skill development.

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APIs training

Why choose APIs?

APIs courses explained

FAQs

How do APIs support web development?

How do REST and GraphQL compare?

Is this training interactive?

How will these courses help my career development?

Career development & support

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