jvmMain.graphql.GraphRoute.kt Maven / Gradle / Ivy
package io.fluidsonic.raptor
import io.fluidsonic.graphql.*
import io.fluidsonic.json.*
import io.fluidsonic.raptor.ktor.*
import io.ktor.http.*
import io.ktor.server.application.*
import io.ktor.server.request.*
import io.ktor.server.response.*
import kotlin.system.*
import org.slf4j.*
internal class GraphRoute(
internal val system: GraphSystem,
) {
suspend fun handle(call: ApplicationCall) {
// TODO rewrite JSON parsing
// TODO disallow mutation for GET
val context = DefaultRaptorGraphContext(
parent = call.raptorContext,
system = system
)
val query: String
val operationName: String?
val variableValues: Map
if (call.request.contentType().match(ContentType("application", "graphql"))) {
query = call.receiveText()
operationName = null
variableValues = emptyMap()
}
else { // TODO check contentType is json or not specified
val json = JsonParser.default.parseMap(call.receiveText())
query = json["query"] as String
operationName = json["operationName"] as String?
@Suppress("UNCHECKED_CAST")
variableValues = (json["variables"] as Map?).orEmpty()
}
val result: Map
val time = measureTimeMillis {
result = system.execute(
documentSource = GDocumentSource.of(query, name = "query"),
operationName = operationName,
variableValues = variableValues,
context = context
)
}
// TODO
LoggerFactory.getLogger(GraphRoute::class.java).info("Execution took ${time}ms")
call.respondText(
text = JsonSerializer.default.serializeValue(result),
contentType = ContentType.Application.Json.withCharset(Charsets.UTF_8)
)
}
internal companion object {
val propertyKey = RaptorPropertyKey("graph route")
}
}