For example:

    Creating the body

    1. import io.micronaut.http.multipart.CompletedFileUpload
    2. import io.micronaut.http.multipart.StreamingFileUpload
    3. import io.micronaut.http.client.multipart.MultipartBody
    4. import org.reactivestreams.Publisher
    6.         File file = new File(uploadDir, "data.txt")
    7.         file.createNewFile()
    10.         MultipartBody requestBody = MultipartBody.builder()     (1)
    11.                 .addPart(                                       (2)
    12.                     "data",
    13.                     MediaType.TEXT_PLAIN_TYPE,
    14.                     file
    15.                 ).build()                                       (3)

    Creating a request

    1.                     HttpRequest.POST("/multipart/upload", requestBody)       (1)
    2.                             .contentType(MediaType.MULTIPART_FORM_DATA_TYPE) (2)

    Creating a request

    1.                     HttpRequest.POST("/multipart/upload", requestBody)   (1)
    1The multipart request body with different sets of data.
    2Set the content-type header of the request to multipart/form-data.