Learn GraphQL Query, Mutation, Subscription along with advanced topics using latest Spring for GraphQL and Springboot 3

What you'll learn

What is GraphQL and how to implement GraphQL APIs using Spring for GraphQL and Springboot Framework

GraphQL Query, Mutation and event-based Subscriptions

GraphQL Custom Scalars and Directives

GraphQL Cursor Paginations

GraphQL Exception Handling

GraphQL Request and Response Interceptors

GraphQL Test cases for Query, Mutation and Subscription

Requirements

basic knowledge of Java Programming and Spring Framework, mostly Springboot architecture

Description

In this Course, you will learn from basics to advanced features of GraphQL using Spring for GraphQL with Springboot 3 framework.Earlier, you need to write more java codes of GraphQL-Java to implement query, mutation or subscription. After springboot version 2.7, Spring for GraphQL released, which helped developers immensely with its annotation based architecture. In this course, we will develop GraphQL microservice APIs using Springboot 3 and Spring for GraphQL framework.Now-a-days, GraphQL is gaining its popularity over REST apis. In my experience, I have seen many projects move towards GraphQL mostly because of its Query feature which retrieves data exactly what the client has requested for. In this course, I have extensively covered all the features of GraphQL Query including custom scalars, directives and paginations for this purpose.This course is mostly hands-on and java programming based, I have focused more on how to implement GraphQL services rather that on the theoretical aspects. This course covers GraphQL Query, Mutation, Subscription as well as advanced topics like extended scalars (using external jars), directives, cursor paginations etc. You will also learn about exception handlings and how to use interceptors. In any API development, writing unit test cases or integration test cases is a must, hence, you will learn that as well using Spring GraphQLTester apis.After completion of the course, you will be able to write complete GraphQL microservice applications using Spring framework with most its features including test cases.

Overview

Section 1: Introduction and Course Structure

Lecture 1 Welcome to the Course and Course Setup

Lecture 2 Course Structure

Section 2: Introduction to GraphQL

Lecture 3 Introduction to GraphQL

Section 3: GraphQL Query

Lecture 4 Writing first GraphQL Query

Lecture 5 MySQL Database Design and connect with Spring Data JPA

Lecture 6 DataFetcher and GraphQL Resolver

Lecture 7 GraphQL Dataloader to solve (n+1) problem

Lecture 8 GraphQL Interfaces and Fragments

Lecture 9 GraphQL Unions and differences with Interfaces

Lecture 10 GraphQL Join Queries

Section 4: GraphQL Advance Topics

Lecture 11 GraphQL Extended Scalars

Lecture 12 GraphQL Directives

Lecture 13 Cursor Paginations

Section 5: GraphQL Mutation

Lecture 14 GraphQL Mutation

Section 6: GraphQL Exception Handling

Lecture 15 How to handle Exceptions in GraphQL

Section 7: GraphQL Interceptors

Lecture 16 Request and Response Interceptors

Section 8: GraphQL Subscription (Event based)

Lecture 17 GraphQL Subscription (Part I)

Lecture 18 GraphQL Subscription (Part II)

Section 9: GraphQL Test Cases

Lecture 19 GraphQL Query Test Cases

Lecture 20 GraphQL Mutation Test Cases

Lecture 21 GraphQL Subscription Test Cases

Lecture 22 GraphQL Error/Exception Test Cases

Section 10: Thank you

Lecture 23 GraphQL Docs and Thank you!

Any Java developer, who wants to learn and develop GraphQL APIs using latest Spring Framework