GraphQL

Who will the Course Benefit?

This course will benefit developers who are required to build or maintain GraphQL services and/or clients,and anyone otherwise interested in what a GraphQL service is,how it works,and how to build a good one.

Course Objectives

This course aims to provide the delegate with the skills and knowledge necessary to design and build good quality GraphQL services.

GraphQL Training Course Course Contents - DAY 1

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
• REST APIs

Session 2: GRAPHQL THEORY

• The problem with REST APIs
• What is GraphQL?
• The composition of a GraphQL service
• Queries and mutations
• Schemas and types

Session 3: GRAPHQL SERVICES

• Building a GraphQL service with:
  • Spring Boot (Java) or;
  • Ariadne (Python) or;
  • Apollo (JavaScript)

Session 4: GRAPHQL CLIENTS

• Building a GraphQL client with:
  • HttpClient (Java) or;
  • GQL (Python) or;
  • Apollo (JavaScript)

GraphQL Training Course Course Contents - DAY 2

Session 5: QUERIES

• Arguments
• Aliases
• Fragments
• Operation names
• Variables
• Directives

Session 6: TYPES

• Arguments
• Lists
• Non-null fields
• The query and mutation types
• Scalar types
• Enum types
• Union types
• Input types
• Interfaces

Session 7: MORE GRAPHQL THEORY

• Validation
• Execution
• Introspection
• Best practices

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.

Further Learning

• Core Spring
• Python Programming 2
• Developing Node.js Web Applications
• REST APIs