org.http4k.format.cloudEventsExtensions.kt Maven / Gradle / Ivy

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http4k support for the CloudEvents format

There is a newer version: 5.41.0.0

package org.http4k.format

import com.fasterxml.jackson.module.kotlin.jacksonTypeRef
import io.cloudevents.CloudEvent
import io.cloudevents.jackson.PojoCloudEventDataMapper
import org.http4k.lens.Lens
import org.http4k.lens.LensGet
import org.http4k.lens.LensSpec
import org.http4k.lens.ParamMeta.ObjectParam

inline fun  ConfigurableJackson.cloudEventDataLens(): Lens {
    val get = LensGet { _, target ->
        target.data?.let { listOf(PojoCloudEventDataMapper.from(mapper, jacksonTypeRef()).map(it).value) }
            .orEmpty()
    }

    return object : LensSpec("CloudEvent", ObjectParam, get) {}.required(T::class.simpleName!!)
}