Learn to build a GraphQL server in Java step by step

Focused View

Benjamin Habegger

7:01:41

253 View

1. Introduction

1. Introduction.mp4

07:15

2.1 pom.zip

2. Setting up the environment for a new GraphQL project.mp4

07:53

2. Schema Basics

1. General presentation of GraphQL types.mp4

10:46

2. Hands-on Creating our first schema.mp4

13:22

3. Update the GraphQL schema.html

3. Data Fetcher Basics

1. Data Fetcher Basics.mp4

06:02

2. Hands On Creating our first Data Fetchers using static data.mp4

30:03

3. Create a StaticProvinceDataFetcher with the provided static data.html

4. Exposing over HTTP

1. How make a GraphQL service over HTTP.mp4

05:21

2. Hands On Creating our GraphQL HTTP service with Jetty.mp4

40:43

5. Connecting to a Database

1. Our sample database the Mondial Database.mp4

03:41

2. Hands On Our first DataFetcher with real data.mp4

35:55

3. Complete the database data fetchers with a DBProvinceDataFetcher.html

6. Types Deep Dive

1. Part 1 Input Types, Enums and Scalars.mp4

06:25

2. Hands-on Lets add criteria to select countries.mp4

06:25

3. Implement criteria for the provinces entrypoint.html

4. Hands-on Adding custom scalars.mp4

45:41

5. Unions and interfaces.mp4

03:43

6. Hands-on implementing a places entry point.mp4

25:10

7. Schema Directives and Documentation

1. Schema Directives And Documentation.mp4

00:05

2. Hands-On Lets add some documentation.mp4

01:51

8. Queries Deep Dive

1. Query constructs.mp4

09:07

2. Exercise your querying skills.html

9. Schema Introspection

1. Schema Introspection.mp4

09:07

2. Exercise querying the GraphQL schema through introspection.html

10. Schema Changes

1. Managing schema changes smoothly.mp4

03:27

2. Hands-on change our schema keeping old fields wired.mp4

10:10

3. Implement deprecation of the province field renamed to region.html

11. Schema via code

1. Schema via code.mp4

04:04

2. Hands-on Populating pieces of the GraphQL schema via POJO introspection.mp4

30:24

3. Generating the City type via code.html

12. Instrumentation

1. Instrumentation.mp4

05:08

2. Hands-on Logging query execution via an instrumentation.mp4

30:34

3. Hands-on Implementing an access control instrumentation.mp4

12:20

4. Implement DataFetcher usage tracing via an instrumentation.html

13. Execution

1. Execution phases and asynchronicity.mp4

07:18

2. Hands-on Making our data fetching asychronous.mp4

15:17

3. Fetching data in batches batch loading.mp4

04:54

4. Hands-on Using batch loading to optimize the number of database queries.mp4

26:14

5. Implement batch loading for provinces.html

14. End notes

1. Recap.mp4

03:16

Description

Deep dive into the graphql-java library and learn everything about schemas, datafetchers, wirings, etc.

What You'll Learn?

Understand the basics of GraphQL (schema, data fetchers)
Know how to write a GraphQL schema using the schema definition language (SDL)
Know how to write and wire DataFetchers
Know how to unit test a GraphQL engine
Know how to expose a GraphQL engine over HTTP using Jetty
Know how to create a DataFetcher for data from an SQL database
Get an in depth understanding of all GraphQL Schema types and how to wire them
Understand how GraphQL schema introspection works
Have in in depth understanding of querying a GraphQL API
Understand how to evolve a GraphQL schema
Understand how to generate all or parts of a schema through code
Know how to extend a GraphQL engine using instrumentations
Understand the execution workflow of a GraphQL query
Know how to optimize performance by using batch loading

Who is this for?

Java developers wanting to learn how to build a GraphQL service

What You Need to Know?

Java programming skills is a minimal requirement

More details

Description
In this course we will take a deep dive into GraphQL and how to build a GraphQLÂ server in Java using the production ready graphql-java library. After this course you will master everything you need to know to build an efficient and modular GraphQLÂ service adapted to any use case.
We will walk through everything you need to know to create a GraphQLÂ server and go through the different notions with hands-on examples and exercises for you to train. After this course you should be comfortable in building your own production ready GraphQLÂ server.
We will walk through:
Schema creation via the schema description languageÂ (SDL)Â and via code
Writing DataFetcher (also called resolvers) both synchronous and asynchronous
Wiring the data fetchers with your schema
Building an GraphQLÂ service over HTTP embedding GraphiQLÂ as a GUI
All the schema and query constructs of offered by GraphQL
All about schema introspection
Everything there is to know about GraphQLÂ query execution
How to implement batch loading to optimize database access
Throughout the course we will illustrate these concepts with hands-on presentations and exercises.
We will be using a concrete database as a demonstration use case and build a full GraphQLÂ service on top of it.
Who this course is for:
Java developers wanting to learn how to build a GraphQL service

User Reviews

Rating

average 0

Total votes0

Focused display

Java

Benjamin Habegger

Instructor's Courses

I am a software professional with more than 20 years of experience with a broad range of skills. I have worked in many different IT environments, be it academia, start ups, small and big companies and faced many challenges. But most of all, I fell into IT and the internet at a very young age, when the general public still did not know what internet was.I have a particular taste for any topics around data integration, transformation and delivery with or without machine learning. I even have a PhD on the topic.

Udemy

View courses Udemy

Students take courses primarily to improve job-related skills.Some courses generate credit toward technical certification. Udemy has made a special effort to attract corporate trainers seeking to create coursework for employees of their company.