Can I use custom Scalar Type

[1712048533]

this is my schema.graphql

scalar Date
type Query {
    findOneStudent:StudentNode
}

type StudentNode{
    ID: ID!
    name: String
    age:Int
    birthday: Date
}

this is my controller

@Controller
public class StudentController {

    @QueryMapping
    Student findOneStudent(){
        return new Student()
                .setID("1").setName("er ha").setAge(10).setBirthday(new Date());
    }

}

I want to use Date type in Spring-Boot-starter-graphql, Can you help me what Should I need do ?

[dondonz]

There are libraries of custom scalars which you can import. For example, graphql-java-extended-scalars has a Date scalar.

You can import this library via your favourite package manager, for example Gradle

implementation 'com.graphql-java:graphql-java-extended-scalars:20.0'

Then register the Date scalar with a RuntimeWiringConfigurer bean, for example

@Configuration
public class GraphQlConfig {
    @Bean
    public RuntimeWiringConfigurer runtimeWiringConfigurer() {
        return wiringBuilder -> wiringBuilder.scalar(ExtendedScalars.Date);
    }
}

[hantsy]

Customizing a Scalar is easy, my answer on a stackoverflow question: https://stackoverflow.com/questions/74681060/how-to-specify-datetime-in-graphql-schema/75266694#75266694

[1712048533]

There are libraries of custom scalars which you can import. For example, graphql-java-extended-scalars has a Date scalar.

You can import this library via your favourite package manager, for example Gradle

implementation 'com.graphql-java:graphql-java-extended-scalars:20.0'

Then register the Date scalar with a RuntimeWiringConfigurer bean, for example

@Configuration
public class GraphQlConfig {
    @Bean
    public RuntimeWiringConfigurer runtimeWiringConfigurer() {
        return wiringBuilder -> wiringBuilder.scalar(ExtendedScalars.Date);
    }
}

thank you very much，I will try it！

[1712048533]

There are libraries of custom scalars which you can import. For example, graphql-java-extended-scalars has a Date scalar.

You can import this library via your favourite package manager, for example Gradle

implementation 'com.graphql-java:graphql-java-extended-scalars:20.0'

Then register the Date scalar with a RuntimeWiringConfigurer bean, for example

@Configuration
public class GraphQlConfig {
    @Bean
    public RuntimeWiringConfigurer runtimeWiringConfigurer() {
        return wiringBuilder -> wiringBuilder.scalar(ExtendedScalars.Date);
    }
}

Hi, mogul，Can I ask for you a new Problem，You know I need the annotation of QueryMapping to wired Controller method, but I can not use the param of HttpServletRequest, but I really really want to operate cookie by it, How I shoud do?

[1712048533]

Customizing a Scalar is easy, my answer on a stackoverflow question: https://stackoverflow.com/questions/74681060/how-to-specify-datetime-in-graphql-schema/75266694#75266694

Hi, mogul，Can I ask for you a new Problem，You know I need the annotation of QueryMapping to wired Controller method, but I can not use the param of HttpServletRequest, but I really really want to operate cookie by it, How I shoud do?

[bclozel]

@1712048533 I'm glad you managed to register this custom scalar. As for accessing the HTTP request in a GraphQL Controller, this is not something we support on purpose: GraphQL can be used over many different transports and you cannot rely on transport-specific features there. See this comment as well.

For further questions, you can use StackOverflow with the spring-graphql tag that we monitor.

Thanks!

[1712048533]

thanks I will follow it！