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graphql for java

Anjali Sharma answered on January 12, 2023 Popularity 9/10 Helpfulness 1/10

answer graphql for java

graphql for java

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GraphQL is a query language to retrieve data from a server. It is an alternative to REST, SOAP or gRPC.

import static graphql.schema.idl.RuntimeWiring.newRuntimeWiring;

public class HelloWorld {

    public static void main(String[] args) {
        String schema = "type Query{hello: String} schema{query: Query}";

        SchemaParser schemaParser = new SchemaParser();
        TypeDefinitionRegistry typeDefinitionRegistry = schemaParser.parse(schema);

        RuntimeWiring runtimeWiring = new RuntimeWiring()
                .type("Query", builder -> builder.dataFetcher("hello", new StaticDataFetcher("world")))
                .build();

        SchemaGenerator schemaGenerator = new SchemaGenerator();
        GraphQLSchema graphQLSchema = schemaGenerator.makeExecutableSchema(typeDefinitionRegistry, runtimeWiring);

        GraphQL build = GraphQL.newGraphQL(graphQLSchema).build();
        ExecutionResult executionResult = build.execute("{hello}");

        System.out.println(executionResult.getData().toString());
        // Prints: {hello=world}
    }
}

https://www.graphql-java.com/

Popularity 9/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: graphql java

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Contributed on Jan 12 2023

Anjali Sharma

0 Answers Avg Quality 2/10

graphql for java

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