An Advanced Guide to GraphQL With Java, MySQL, and JPA Implementation
GraphQL is a query language to retrieve data from a server. It is an alternative to REST, SOAP, or gRPC in some way.
GraphQL is a new API standard and offers a revolutionary approach to building data-driven applications. The project was first created by Facebook while they were shifting their mobile app from HTML5 to a native mobile app.
GraphQL follows the same set of constraints as REST APIs, but it organizes data into a graph using one interface. Objects are represented by nodes (defined using the GraphQL schema), and the relationship between nodes is represented by edges in the graph. Each object is then backed by a resolver that accesses the server’s data.In this article, we will cover the following topics:
What are GraphQL and its use cases?
Key differences between REST and GraphQL. Which types of problems are solving by GraphQL that is created by REST API?
Why GraphQL is getting more popular day by day?
GraphQL implementation using spring boot, JPA, and MySQL database for a blog server
Sharing the codebase with the resources files
To understand this article you may need prior knowledge of Spring boot, JPA, and in-memory database. For this, you may try this article.Implementation Details
Today we will implement a typical blog server. Its ER diagram is given below:
Here, we have a User table and one post table
User table contains user-related data like full name, email, gender, date of birth, and address
Post table contains post-related data like title, description, publish date, and user id.
Here, user_id in the post table is a foreign key from the user table
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