Learn to build a GraphQL server in Java step by step

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Posted on 14 Apr 05:29 | by BaDshaH | 0 views

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

Requirements:
Java programming skills is a minimal requirement

Description:
In this course we will take a deep dive into GraphQL and how to build a GraphQL 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 GraphQL service adapted to any use case.We will walk through everything you need to know to create a GraphQL 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 GraphQL server.We will walk through:Schema creation via the schema description language and via codeWriting DataFetcher (also called resolvers) both synchronous and asynchronousWiring the data fetchers with your schemaBuilding an GraphQL service over HTTP embedding GraphiQL as a GUIAll the schema and query constructs of offered by GraphQLAll about schema introspectionEverything there is to know about GraphQL query executionHow to implement batch loading to optimize database accessThroughout 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 GraphQL service on top of it.

Who this course is for:
Java developers wanting to learn who to build a GraphQL service

Homepage

https://www.udemy.com/course/learn-graphql-in-java/


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