Supercharge your GraphQL with Ktor and GraalVM

All types within a GraphQL schema must have unique names. No two provided types may have the same name.
No provided type may have a name which conflicts with any built in types (including Scalar and Introspection types).
You have redefined the type 'LocalDateTime' from being a 'GraphQLScalarType' to a 'GraphQLScalarType'

@GetMapping("/posts/{id}")
suspend fun getById(@PathVariable id: Long): ResponseEntity<PostDto> {
    val response = postService.findById(id)
    return if (response != null) ResponseEntity.ok(response)
    else ResponseEntity.notFound().build()
}

object ProductTable : IntIdTable() {
    val name = varchar("name", 80)
    val price = double("price")
}

class ProductEntity(id: EntityID<Int>) : IntEntity(id) {
    companion object : IntEntityClass<ProductEntity>(ProductTable)

    var name by ProductTable.name
    var price by ProductTable.price
}
...
class ProductQuery : Query {
  private val repository = ProductRepository()
  suspend fun products(): List<Product> = repository.findAll()
}
...
class ProductRepository {
  suspend fun findAll(): List<Product> = query {
    val products = ProductEntity.all().map { entityToProduct(it) }

    products
  }
}

kotlin.reflect.jvm.internal.KotlinReflectionInternalError: Could not compute caller for function: public constructor ProductEntity(id: org.jetbrains.exposed.dao.id.EntityID<<http://kotlin.Int|kotlin.Int>>) defined in si.schlamberger.climbholds.db.product.ProductEntity[DeserializedClassConstructorDescriptor@733818e6] (member = null)

typeHierarchy = mapOf(
        IntEntity::class to listOf(ProductEntity::class),
        IntIdTable::class to listOf(ProductTable::class)
      )

@GraphQLInputName

Input

graphql-kotlin-schema-generator

schema.graphql

graphql-kotlin-maven-plugin

Execution default of goal com.expediagroup:graphql-kotlin-maven-plugin:8.0.0-SNAPSHOT:generate-sdl failed: A required class was missing while executing com.expediagroup:graphql-kotlin-maven-plugin:8.0.0-SNAPSHOT:generate-sdl: kotlin/jvm/functions/Function0
[ERROR] -----------------------------------------------------
[ERROR] realm =    plugin>com.expediagroup:graphql-kotlin-maven-plugin:8.0.0-SNAPSHOT
[ERROR] strategy = org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy
[ERROR] urls[0] = file:/Users/amaagarwal/.m2/repository/com/expediagroup/graphql-kotlin-maven-plugin/8.0.0-SNAPSHOT/graphql-kotlin-maven-plugin-8.0.0-SNAPSHOT.jar
[ERROR] Number of foreign imports: 1

graphqlGenerateClient

val graphqlGenerateClient by tasks.getting(GraphQLGenerateClientTask::class) {
    packageName.set("org.harmonelo.moneys4.graphql")
    schemaFile.set(file("${project.projectDir}/src/main/resources/schema.graphql"))
}

graphql-java

graphql-java

{
  "Data": {
    "CreateIssuedInvoice": {
      "ID": "62d0e9c6-1c54-4324-8ac5-716701b325be",
      "Stav": 0,
      "CisloDokladu": "240010989"
    }
  },
  "Status": 1,
  "Message": "",
  "StackTrace": ""
}

GraphQLWebClient

query {sessions(dateRange: {range: "2024-06-28/2024-07-28"})}

query ($dateRange: DateRangeInput) {sessions(dateRange: $dateRange)}

"dateRange": {"range": "2024-06-28/2024-07-28"}

spring-graphql

1 MDC.put("k1", "v1")
2 <http://logger.info|logger.info>("one")
3 withContext(<http://Dispatchers.IO|Dispatchers.IO> + MDCContext()) {
4   MDC.put("k2", "v2")
5   <http://logger.info|logger.info>("two")
6   delay(10000) // Fake an API call
7   <http://logger.info|logger.info>("three")
8 }
9 <http://logger.info|logger.info>("four")

{ "k1": "v1" }

{ "k1": "v1" }

{ "k1": "v1", "k2": "v2" }

{ "k1": "v1" }

graphql-kotlin-ktor-server

<ws://localhost:4000/graphql>

<ws://localhost:4000/subscriptions>

wscat -c <ws://localhost:4000/subscriptions>

error: Unexpected server response: 400

IMPORTANT

see <https://github.com/ExpediaGroup/graphql-kotlin/releases/tag/8.3.0>