A GraphQL directive is a way to add an extra behavior by annotating parts of the GraphQL schema. We can define a directive starting with @ character followed by the name, argument (optional), and execution location
In GraphQL, a mutation is used to insert, update or delete data. The mutation API is defined with the type Mutation rather than the Query. In Spring for Graphql, a mutation can be implemented using @SchemaMapping or @MutationMapping.
GraphQL is susceptible to one issue, commonly known as N + 1 problem. If the GraphQL service is not implemented correctly, it can cause significant latency in the API calls.
In the last article Getting started with Spring Boot GraphQL service, we discussed features of GraphQL and its implementation in Spring for GraphQL using low-level APIs of GraphQL Java. While low-level GraphQL Java implementation is fine for understanding the concept,…
GraphQL is a query language for API and a server-side runtime for executing queries. Spring for GraphQL provides a higher level abstraction for building Spring Boot GraphQL service.