fun getAttachment(sysId: String, isValidateAttachment: Boolean) { 
  val call = attachmentService.attachment(sysId, isValidateAttachment) 
  call.enqueue( 
    { response -> 
      val attachment: NowAttachment? = response.body 
    }, 
      { nowDataError -> handleError(nowDataError) } 
  ) 
}

fun fetchMetadata(sysId: String) { 
  val call = attachmentService.attachmentMetadata(sysId) 
  call.enqueue(
    { response -> 
      val metadata: NowAttachmentMetadata? = response.body 
    },
    { nowDataError -> handleError(nowDataError) } 
  )
}

fun fetchMultipleMetadata(filterQuery: String, limit: Int) { 
  val call = attachmentService.attachmentMetadata(Filter(filterQuery), limit) 
  call.enqueue( 
    { response -> 
      val metadataList: List<NowAttachmentMetadata>? = response.body 
    },
    { nowDataError -> handleError(nowDataError) } 
  )
}

次のコード例は、この関数を呼び出す方法を示しています。

suspend fun createAttachmentMetadataPaginator() {
  val filterQuery: String = "content_type=text/plain"
  val filter = filterQuery.let(::Filter)
  val limit = 10
  val paginator = nowServiceManager.getNowAttachmentService()?.attachmentMetadataPaginator(filter, limit)
    ?.observe(object : PaginatorCallBack<NowAttachmentMetadata> {
      override fun onFailure(e: NowDataError) {
        handleError(e)
      }

      override fun onSuccess(response: Response<List<NowAttachmentMetadata>>) {
        handleResponse(response)
      }

    })
    ?: throw Exception("Response is null")
}

fun deleteAttachment(sysId: String) { 
  val call = attachmentService.delete(sysId) 
  call.enqueue( 
    { response -> handleResponse(response) }, 
    { nowDataError -> handleError(nowDataError) } 
  )
} 

fun uploadAttachment(tableName: String, recordSysId: String, fileName: String) { 
  val bitmap = BitmapFactory.decodeResource(resources, R.drawable.test_image) 
  val data = bitmap.compress(ImageType.JPEG) 
  val contentType = "image/jpg" 
  val config = NowAttachmentUploadConfiguration(tableName, recordSysId, fileName, contentType) 
  val call = attachmentService.upload(data, config) 
 
  call.enqueue( 
    { response -> 
      val uploadedAttachmentMetadata: NowAttachmentMetadata? = response.body 
    },
    { nowDataError -> handleError(nowDataError) } 
  )
}