SoapUI. Add multipart body part using groovy - groovy

Question

I need to add json as multipart body part to "multipart/form-data" request using groovy.
I can do this using file attachments:
testRunner.testCase
.testSteps["/job/result"]
.getHttpRequest()
.attachBinaryData(json.toString().getBytes(), "application/json").contentID = "info"
My problem is "attachBinaryData" creates a temp file per request. It is not good for load tests :)
Is there other possibility to add body parts, without file attachments?
something like :
testRunner.testCase
.testSteps["/job/result"]
.getHttpRequest()
.addBodyPart("application/json", json.toString())
P.S. it must be the "add", because request has also one static attachment.

Answer 1

If you want to add a json to your request as a multipart/form-data using groovy script testStep you can use the follow code:
def jsonStr = "{'id':'test','someValue':'3'}"
def testStep = context.testCase.testSteps["/job/result"]
// set the content for the request
testStep.getHttpRequest().setRequestContent(jsonStr)
// and set the media type
testStep.testRequest.setMediaType('application/json')
// if you want to send as a multipart/form-data then use follow line instead
// testStep.testRequest.setMediaType('multipart/form-data')
This results in a request configured as follows:
Hope it helps,

Answer 2

Have found a solution using https://github.com/jgritman/httpbuilder
def http = new HTTPBuilder(serviceEndPoint)
def scanResultFile = new File(testRunner.testCase.getPropertyValue("ScanResultFile"))
http.request( POST ){ req ->
headers.'Connection' = 'Keep-Alive'
headers.'User-Agent' = 'SoapUI 4.5.1'
requestContentType = 'multipart/form-data'
ByteArrayBody bin = new ByteArrayBody(scanResultFile.readBytes(), "application/octet-stream", "jobResult");
StringBody info = new StringBody(testRunner.testCase.getPropertyValue("JsonScanResult"), "application/json", java.nio.charset.StandardCharsets.UTF_8);
MultipartEntity entity = new MultipartEntity()
entity.addPart("info", info);
entity.addPart("jobResult", bin)
req.entity = entity
}