diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2aca35ae..d04f223f 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
{
- ".": "0.5.0"
+ ".": "0.5.1"
}
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ffc952b6..b8b2a364 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,14 @@
# Changelog
+## 0.5.1 (2026-02-24)
+
+Full Changelog: [v0.5.0...v0.5.1](https://github.com/openlayer-ai/openlayer-java/compare/v0.5.0...v0.5.1)
+
+### Chores
+
+* drop apache dependency ([c189130](https://github.com/openlayer-ai/openlayer-java/commit/c189130bcb7d4d925ab0ba5a6666760176ac4a27))
+* make `Properties` more resilient to `null` ([8c199df](https://github.com/openlayer-ai/openlayer-java/commit/8c199df8c9b0acd5d409c287f24bdd31fba7050b))
+
## 0.5.0 (2026-02-19)
Full Changelog: [v0.4.5...v0.5.0](https://github.com/openlayer-ai/openlayer-java/compare/v0.4.5...v0.5.0)
diff --git a/README.md b/README.md
index 133fdec1..8a176769 100644
--- a/README.md
+++ b/README.md
@@ -2,8 +2,8 @@
-[](https://central.sonatype.com/artifact/com.openlayer.api/openlayer-java/0.5.0)
-[](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.5.0)
+[](https://central.sonatype.com/artifact/com.openlayer.api/openlayer-java/0.5.1)
+[](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.5.1)
@@ -13,7 +13,7 @@ It is generated with [Stainless](https://www.stainless.com/).
-The REST API documentation can be found on [openlayer.com](https://openlayer.com/docs/api-reference/rest/overview). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.5.0).
+The REST API documentation can be found on [openlayer.com](https://openlayer.com/docs/api-reference/rest/overview). Javadocs are available on [javadoc.io](https://javadoc.io/doc/com.openlayer.api/openlayer-java/0.5.1).
@@ -24,7 +24,7 @@ The REST API documentation can be found on [openlayer.com](https://openlayer.com
### Gradle
```kotlin
-implementation("com.openlayer.api:openlayer-java:0.5.0")
+implementation("com.openlayer.api:openlayer-java:0.5.1")
```
### Maven
@@ -33,7 +33,7 @@ implementation("com.openlayer.api:openlayer-java:0.5.0")
com.openlayer.api
openlayer-java
- 0.5.0
+ 0.5.1
```
diff --git a/build.gradle.kts b/build.gradle.kts
index 84d5d0a5..c9d9885c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -8,7 +8,7 @@ repositories {
allprojects {
group = "com.openlayer.api"
- version = "0.5.0" // x-release-please-version
+ version = "0.5.1" // x-release-please-version
}
subprojects {
diff --git a/openlayer-java-core/build.gradle.kts b/openlayer-java-core/build.gradle.kts
index 77e27251..396e8396 100644
--- a/openlayer-java-core/build.gradle.kts
+++ b/openlayer-java-core/build.gradle.kts
@@ -27,8 +27,6 @@ dependencies {
implementation("com.fasterxml.jackson.datatype:jackson-datatype-jdk8:2.18.2")
implementation("com.fasterxml.jackson.datatype:jackson-datatype-jsr310:2.18.2")
implementation("com.fasterxml.jackson.module:jackson-module-kotlin:2.18.2")
- implementation("org.apache.httpcomponents.core5:httpcore5:5.2.4")
- implementation("org.apache.httpcomponents.client5:httpclient5:5.3.1")
testImplementation(kotlin("test"))
testImplementation(project(":openlayer-java-client-okhttp"))
diff --git a/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/Properties.kt b/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/Properties.kt
index a4b37bc1..a694f9c1 100644
--- a/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/Properties.kt
+++ b/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/Properties.kt
@@ -34,9 +34,9 @@ fun getOsName(): String {
}
}
-fun getOsVersion(): String = System.getProperty("os.version", "unknown")
+fun getOsVersion(): String = System.getProperty("os.version", "unknown") ?: "unknown"
fun getPackageVersion(): String =
- OpenlayerClient::class.java.`package`.implementationVersion ?: "unknown"
+ OpenlayerClient::class.java.`package`?.implementationVersion ?: "unknown"
-fun getJavaVersion(): String = System.getProperty("java.version", "unknown")
+fun getJavaVersion(): String = System.getProperty("java.version", "unknown") ?: "unknown"
diff --git a/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/http/HttpRequestBodies.kt b/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/http/HttpRequestBodies.kt
index 39005535..93f84e24 100644
--- a/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/http/HttpRequestBodies.kt
+++ b/openlayer-java-core/src/main/kotlin/com/openlayer/api/core/http/HttpRequestBodies.kt
@@ -8,13 +8,13 @@ import com.fasterxml.jackson.databind.JsonNode
import com.fasterxml.jackson.databind.json.JsonMapper
import com.fasterxml.jackson.databind.node.JsonNodeType
import com.openlayer.api.core.MultipartField
+import com.openlayer.api.core.toImmutable
import com.openlayer.api.errors.OpenlayerInvalidDataException
+import java.io.ByteArrayInputStream
import java.io.InputStream
import java.io.OutputStream
+import java.util.UUID
import kotlin.jvm.optionals.getOrNull
-import org.apache.hc.client5.http.entity.mime.MultipartEntityBuilder
-import org.apache.hc.core5.http.ContentType
-import org.apache.hc.core5.http.HttpEntity
@JvmSynthetic
internal inline fun json(jsonMapper: JsonMapper, value: T): HttpRequestBody =
@@ -37,94 +37,231 @@ internal fun multipartFormData(
jsonMapper: JsonMapper,
fields: Map>,
): HttpRequestBody =
- object : HttpRequestBody {
- private val entity: HttpEntity by lazy {
- MultipartEntityBuilder.create()
- .apply {
- fields.forEach { (name, field) ->
- val knownValue = field.value.asKnown().getOrNull()
- val parts =
- if (knownValue is InputStream) {
- // Read directly from the `InputStream` instead of reading it all
- // into memory due to the `jsonMapper` serialization below.
- sequenceOf(name to knownValue)
- } else {
- val node = jsonMapper.valueToTree(field.value)
- serializePart(name, node)
+ MultipartBody.Builder()
+ .apply {
+ fields.forEach { (name, field) ->
+ val knownValue = field.value.asKnown().getOrNull()
+ val parts =
+ if (knownValue is InputStream) {
+ // Read directly from the `InputStream` instead of reading it all
+ // into memory due to the `jsonMapper` serialization below.
+ sequenceOf(name to knownValue)
+ } else {
+ val node = jsonMapper.valueToTree(field.value)
+ serializePart(name, node)
+ }
+
+ parts.forEach { (name, bytes) ->
+ val partBody =
+ if (bytes is ByteArrayInputStream) {
+ val byteArray = bytes.readBytes()
+
+ object : HttpRequestBody {
+
+ override fun writeTo(outputStream: OutputStream) {
+ outputStream.write(byteArray)
+ }
+
+ override fun contentType(): String = field.contentType
+
+ override fun contentLength(): Long = byteArray.size.toLong()
+
+ override fun repeatable(): Boolean = true
+
+ override fun close() {}
}
+ } else {
+ object : HttpRequestBody {
+
+ override fun writeTo(outputStream: OutputStream) {
+ bytes.copyTo(outputStream)
+ }
+
+ override fun contentType(): String = field.contentType
+
+ override fun contentLength(): Long = -1L
- parts.forEach { (name, bytes) ->
- addBinaryBody(
- name,
- bytes,
- ContentType.parseLenient(field.contentType),
- field.filename().getOrNull(),
- )
+ override fun repeatable(): Boolean = false
+
+ override fun close() = bytes.close()
+ }
}
- }
+
+ addPart(
+ MultipartBody.Part.create(
+ name,
+ field.filename().getOrNull(),
+ field.contentType,
+ partBody,
+ )
+ )
}
- .build()
+ }
}
+ .build()
- private fun serializePart(
- name: String,
- node: JsonNode,
- ): Sequence> =
- when (node.nodeType) {
- JsonNodeType.MISSING,
- JsonNodeType.NULL -> emptySequence()
- JsonNodeType.BINARY -> sequenceOf(name to node.binaryValue().inputStream())
- JsonNodeType.STRING -> sequenceOf(name to node.textValue().inputStream())
- JsonNodeType.BOOLEAN ->
- sequenceOf(name to node.booleanValue().toString().inputStream())
- JsonNodeType.NUMBER ->
- sequenceOf(name to node.numberValue().toString().inputStream())
- JsonNodeType.ARRAY ->
- sequenceOf(
- name to
- node
- .elements()
- .asSequence()
- .mapNotNull { element ->
- when (element.nodeType) {
- JsonNodeType.MISSING,
- JsonNodeType.NULL -> null
- JsonNodeType.STRING -> node.textValue()
- JsonNodeType.BOOLEAN -> node.booleanValue().toString()
- JsonNodeType.NUMBER -> node.numberValue().toString()
- null,
- JsonNodeType.BINARY,
- JsonNodeType.ARRAY,
- JsonNodeType.OBJECT,
- JsonNodeType.POJO ->
- throw OpenlayerInvalidDataException(
- "Unexpected JsonNode type in array: ${node.nodeType}"
- )
- }
- }
- .joinToString(",")
- .inputStream()
- )
- JsonNodeType.OBJECT ->
- node.fields().asSequence().flatMap { (key, value) ->
- serializePart("$name[$key]", value)
- }
- JsonNodeType.POJO,
- null ->
- throw OpenlayerInvalidDataException(
- "Unexpected JsonNode type: ${node.nodeType}"
- )
+private fun serializePart(name: String, node: JsonNode): Sequence> =
+ when (node.nodeType) {
+ JsonNodeType.MISSING,
+ JsonNodeType.NULL -> emptySequence()
+ JsonNodeType.BINARY -> sequenceOf(name to node.binaryValue().inputStream())
+ JsonNodeType.STRING -> sequenceOf(name to node.textValue().byteInputStream())
+ JsonNodeType.BOOLEAN -> sequenceOf(name to node.booleanValue().toString().byteInputStream())
+ JsonNodeType.NUMBER -> sequenceOf(name to node.numberValue().toString().byteInputStream())
+ JsonNodeType.ARRAY ->
+ sequenceOf(
+ name to
+ node
+ .elements()
+ .asSequence()
+ .mapNotNull { element ->
+ when (element.nodeType) {
+ JsonNodeType.MISSING,
+ JsonNodeType.NULL -> null
+ JsonNodeType.STRING -> element.textValue()
+ JsonNodeType.BOOLEAN -> element.booleanValue().toString()
+ JsonNodeType.NUMBER -> element.numberValue().toString()
+ null,
+ JsonNodeType.BINARY,
+ JsonNodeType.ARRAY,
+ JsonNodeType.OBJECT,
+ JsonNodeType.POJO ->
+ throw OpenlayerInvalidDataException(
+ "Unexpected JsonNode type in array: ${element.nodeType}"
+ )
+ }
+ }
+ .joinToString(",")
+ .byteInputStream()
+ )
+ JsonNodeType.OBJECT ->
+ node.fields().asSequence().flatMap { (key, value) ->
+ serializePart("$name[$key]", value)
}
+ JsonNodeType.POJO,
+ null -> throw OpenlayerInvalidDataException("Unexpected JsonNode type: ${node.nodeType}")
+ }
- private fun String.inputStream(): InputStream = toByteArray().inputStream()
+private class MultipartBody
+private constructor(private val boundary: String, private val parts: List) : HttpRequestBody {
+ private val boundaryBytes: ByteArray = boundary.toByteArray()
+ private val contentType = "multipart/form-data; boundary=$boundary"
- override fun writeTo(outputStream: OutputStream) = entity.writeTo(outputStream)
+ // This must remain in sync with `contentLength`.
+ override fun writeTo(outputStream: OutputStream) {
+ parts.forEach { part ->
+ outputStream.write(DASHDASH)
+ outputStream.write(boundaryBytes)
+ outputStream.write(CRLF)
- override fun contentType(): String = entity.contentType
+ outputStream.write(CONTENT_DISPOSITION)
+ outputStream.write(part.contentDisposition.toByteArray())
+ outputStream.write(CRLF)
- override fun contentLength(): Long = entity.contentLength
+ outputStream.write(CONTENT_TYPE)
+ outputStream.write(part.contentType.toByteArray())
+ outputStream.write(CRLF)
- override fun repeatable(): Boolean = entity.isRepeatable
+ outputStream.write(CRLF)
+ part.body.writeTo(outputStream)
+ outputStream.write(CRLF)
+ }
- override fun close() = entity.close()
+ outputStream.write(DASHDASH)
+ outputStream.write(boundaryBytes)
+ outputStream.write(DASHDASH)
+ outputStream.write(CRLF)
+ }
+
+ override fun contentType(): String = contentType
+
+ // This must remain in sync with `writeTo`.
+ override fun contentLength(): Long {
+ var byteCount = 0L
+
+ parts.forEach { part ->
+ val contentLength = part.body.contentLength()
+ if (contentLength == -1L) {
+ return -1L
+ }
+
+ byteCount +=
+ DASHDASH.size +
+ boundaryBytes.size +
+ CRLF.size +
+ CONTENT_DISPOSITION.size +
+ part.contentDisposition.toByteArray().size +
+ CRLF.size +
+ CONTENT_TYPE.size +
+ part.contentType.toByteArray().size +
+ CRLF.size +
+ CRLF.size +
+ contentLength +
+ CRLF.size
+ }
+
+ byteCount += DASHDASH.size + boundaryBytes.size + DASHDASH.size + CRLF.size
+ return byteCount
+ }
+
+ override fun repeatable(): Boolean = parts.all { it.body.repeatable() }
+
+ override fun close() {
+ parts.forEach { it.body.close() }
+ }
+
+ class Builder {
+ private val boundary = UUID.randomUUID().toString()
+ private val parts: MutableList = mutableListOf()
+
+ fun addPart(part: Part) = apply { parts.add(part) }
+
+ fun build() = MultipartBody(boundary, parts.toImmutable())
+ }
+
+ class Part
+ private constructor(
+ val contentDisposition: String,
+ val contentType: String,
+ val body: HttpRequestBody,
+ ) {
+ companion object {
+ fun create(
+ name: String,
+ filename: String?,
+ contentType: String,
+ body: HttpRequestBody,
+ ): Part {
+ val disposition = buildString {
+ append("form-data; name=")
+ appendQuotedString(name)
+ if (filename != null) {
+ append("; filename=")
+ appendQuotedString(filename)
+ }
+ }
+ return Part(disposition, contentType, body)
+ }
+ }
+ }
+
+ companion object {
+ private val CRLF = byteArrayOf('\r'.code.toByte(), '\n'.code.toByte())
+ private val DASHDASH = byteArrayOf('-'.code.toByte(), '-'.code.toByte())
+ private val CONTENT_DISPOSITION = "Content-Disposition: ".toByteArray()
+ private val CONTENT_TYPE = "Content-Type: ".toByteArray()
+
+ private fun StringBuilder.appendQuotedString(key: String) {
+ append('"')
+ for (ch in key) {
+ when (ch) {
+ '\n' -> append("%0A")
+ '\r' -> append("%0D")
+ '"' -> append("%22")
+ else -> append(ch)
+ }
+ }
+ append('"')
+ }
}
+}
diff --git a/openlayer-java-core/src/test/kotlin/com/openlayer/api/core/http/HttpRequestBodiesTest.kt b/openlayer-java-core/src/test/kotlin/com/openlayer/api/core/http/HttpRequestBodiesTest.kt
new file mode 100644
index 00000000..971693c5
--- /dev/null
+++ b/openlayer-java-core/src/test/kotlin/com/openlayer/api/core/http/HttpRequestBodiesTest.kt
@@ -0,0 +1,729 @@
+// File generated from our OpenAPI spec by Stainless.
+
+package com.openlayer.api.core.http
+
+import com.openlayer.api.core.MultipartField
+import com.openlayer.api.core.jsonMapper
+import java.io.ByteArrayOutputStream
+import java.io.InputStream
+import org.assertj.core.api.Assertions.assertThat
+import org.junit.jupiter.api.Test
+
+internal class HttpRequestBodiesTest {
+
+ @Test
+ fun multipartFormData_serializesFieldWithFilename() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "file" to
+ MultipartField.builder()
+ .value("hello")
+ .filename("hello.txt")
+ .contentType("text/plain")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(output.size().toLong()).isEqualTo(body.contentLength())
+ val boundary = body.contentType()!!.substringAfter("multipart/form-data; boundary=")
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="file"; filename="hello.txt"
+ |Content-Type: text/plain
+ |
+ |hello
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesFieldWithoutFilename() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "field" to
+ MultipartField.builder()
+ .value("value")
+ .contentType("text/plain")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(output.size().toLong()).isEqualTo(body.contentLength())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="field"
+ |Content-Type: text/plain
+ |
+ |value
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesInputStream() {
+ // Use `.buffered()` to get a non-ByteArrayInputStream, which hits the non-repeatable code
+ // path.
+ val inputStream = "stream content".byteInputStream().buffered()
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "data" to
+ MultipartField.builder()
+ .value(inputStream)
+ .contentType("application/octet-stream")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isFalse()
+ assertThat(body.contentLength()).isEqualTo(-1L)
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="data"
+ |Content-Type: application/octet-stream
+ |
+ |stream content
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesByteArray() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "binary" to
+ MultipartField.builder()
+ .value("abc".toByteArray())
+ .contentType("application/octet-stream")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(body.contentLength()).isEqualTo(output.size().toLong())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="binary"
+ |Content-Type: application/octet-stream
+ |
+ |abc
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesBooleanValue() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "flag" to
+ MultipartField.builder()
+ .value(true)
+ .contentType("text/plain")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(body.contentLength()).isEqualTo(output.size().toLong())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="flag"
+ |Content-Type: text/plain
+ |
+ |true
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesNumberValue() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "count" to
+ MultipartField.builder().value(42).contentType("text/plain").build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(body.contentLength()).isEqualTo(output.size().toLong())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="count"
+ |Content-Type: text/plain
+ |
+ |42
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesNullValueAsNoParts() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "present" to
+ MultipartField.builder()
+ .value("yes")
+ .contentType("text/plain")
+ .build(),
+ "absent" to
+ MultipartField.builder()
+ .value(null as String?)
+ .contentType("text/plain")
+ .build(),
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(body.contentLength()).isEqualTo(output.size().toLong())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="present"
+ |Content-Type: text/plain
+ |
+ |yes
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesArray() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "items" to
+ MultipartField.builder>()
+ .value(listOf("alpha", "beta", "gamma"))
+ .contentType("text/plain")
+ .build()
+ ),
+ )
+
+ val output = ByteArrayOutputStream()
+ body.writeTo(output)
+
+ assertThat(body.repeatable()).isTrue()
+ assertThat(body.contentLength()).isEqualTo(output.size().toLong())
+ val boundary = boundary(body)
+ assertThat(output.toString("UTF-8"))
+ .isEqualTo(
+ """
+ |--$boundary
+ |Content-Disposition: form-data; name="items"
+ |Content-Type: text/plain
+ |
+ |alpha,beta,gamma
+ |--$boundary--
+ |
+ """
+ .trimMargin()
+ .replace("\n", "\r\n")
+ )
+ }
+
+ @Test
+ fun multipartFormData_serializesObjectAsNestedParts() {
+ val body =
+ multipartFormData(
+ jsonMapper(),
+ mapOf(
+ "meta" to
+ MultipartField.builder