Swift 4 OutputStream produces more output than input - ios

Question

I have been attempting to use streams in swift to interface with a java socket server (I don't believe the java server is my problem) but when I attempt to write with an OutputStream my string includes a bunch of extra garbage that was not in my original string
The code currently looks like this:
var maxWriteLength = 4096
func sendMessage(msg: String) {
let encodedDataArray = [UInt8](msg.utf8)
outputStream.write(encodedDataArray, maxLength: maxWriteLength)
}
However when I give it an input of "hi" it returns an ouput of:
Echo: hi���8B��,rؾ�؇��allowCloudBackup؇��allowAppInstallation؇��safariForceFraudWarning�&��q���ޙTh�C��=wthread��&��q����������������8$��N��8$���0'}��#�
Echo: �'��q����������p�g�iYh�C���iYh�C��
Echo: D�#D�8״
Echo: pV���؇��requireAlphanumeric؇��allowCellularHDUploadsInternational-Key_2��
and much much more
I have seen other posts suggesting that you should use encodedDataArray.count instead of a maxWriteLength however when I have used this the OutputStream will not write anything.
Thanks in advance.

Answer 1

For future people who struggle with this it was indeed the way the server was handling messages (I went back to check it). The problem was that I was using Scanner.nextLine() and had no \n inside of the swift portion of my code. If you are using an array make sure that you add + "\n" to your string before it is made into an array otherwise the bytes for \n will not be written. The final code looked like this:
func sendMessage(msg: String) {
var finalMsg = msg + "\n"
let encodedDataArray = [UInt8](finalMsg.utf8)
outputStream.write(encodedDataArray, maxLength: encodedDataArray.count)
}