REST APIs
Course Code: RESTAPI
Duration: 2 days
REST APIs Course Overview
REST APIs are a staple for developers the world over. Whether it's to provide a web app with access to server data or to facilitate comms between microservices, REST APIs have exploded in popularity due to their simplicity and flexibility.
This course comprises sessions dealing with prerequisite topics including HTTP and JSON, core REST theory, the building of REST services and clients, REST API configuration including caching and HATEOAS, and yet more REST theory including the Richardson Maturity Model, the n+1 problem, and authentication techniques.
Exercises and examples are used throughout the course to give practical hands-on experience with the techniques covered.
Delegates have the option of coding in either Java, Python, or JavaScript.
Course Objectives
This course aims to provide the delegate with the skills and knowledge necessary to design and build good quality REST APIs.
Who will the Course Benefit?
This course will benefit developers who are required to build or maintain REST services and/or clients, and anyone otherwise interested in what a REST API is, how it works, and how to build a good one.
Skills Gained
The delegate will learn and acquire skills as follows:
- Define the terms API, web service, HTTP, JSON, and serialisation
- Describe how a REST API works
- Build a simple REST service using Spring Boot (Java), Flask (Python), or Express (JavaScript)
- Build a REST client using HttpClient (Java), Requests (Python), or Axios (JavaScript)
- Configure a REST API in terms of caching, compression, idempotence, etc.
- Define and describe the Richardson Maturity Model, options for searching and sorting, the n+1 problem, and authentication techniques
REST APIs Training Course
Course Introduction
- Administration and Course Materials
- Course Structure and Agenda
- Delegate and Trainer Introductions
Session 1: PREREQUISITES
- APIs
- Web apps
- Web services
- HTTP
- JSON
- Serialisation
Session 2: REST THEORY
- What is a REST API?
- Guiding principles/constraints
- Resources
- Methods
- Naming
Session 3: REST SERVICES
- Designing a REST API
- Building a REST service with:
- Spring Boot (Java) or;
- Flask (Python) or;
- Express (JavaScript)
Session 4: REST CLIENTS
- Off-the-shelf REST clients, e.g. Postman
- Building a REST client with:
- HttpClient (Java) or;
- Requests (Python) or;
- Axios (JavaScript)
REST APIs Training Course
Session 5: REST API CONFIGURATION
- Caching
- Compression
- Content negotiation
- HATEOAS
- Idempotence
- Security
- Versioning
- Statelessness
- Documentation
Session 6: MORE REST THEORY
- The Richardson Maturity Model
- Searching, sorting, and pagination
- The n+1 problem
- PUT vs. POST
- Authentication techniques
- Course technical content is subject to change without notice.
- Course content is structured as sessions, this does not strictly map to course timings. Concepts, content and practicals often span sessions.
Requirements
Delegates attending this course should have some knowledge of, or experience in, software development. Ideally delegates will be comfortable coding in Java, Python, or JavaScript to a fundamental level. This knowledge can be gained by attendance on one of the following courses.
Pre-Requisite Courses
Further Learning
Live Virtual Classroom
All the convenience and benefits of the classroom experience without the hassle and costs of travel and accommodation.
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