Send "raw" string from app to ESP32

MIT App Inventor Help
1

First off, hi guys, I don't know if this is the right place to post this, correct me if I'm wrong.
I have an ESP32 with the following code which works great with netcat:

void loop(){
  wfc client = server.available();
  if(client){
    CT = millis();
    PT = CT;
    Serial.println("New client");
    while(client.connected() && CT - PT <= timeout){
      if(client.available()){
        c = client.read();
        if(c == '\n'){
          break;
        }else if(c != '\r'){
          currentLine += c;
        }
      }
    }
    if(currentLine == "reboot"){
      ESP.restart();
    }
    Serial.println(currentLine);
    currentLine = "";
    c = '\0';
    client.write("Message recieved\n");
    Serial.println("Client disconnected");
    Serial.println();
    client.stop();
  }

The ESP32 boots up, tells me it's address and I hit it with an echo "test" | nc 192.168.1.36 80 from a terminal and the message(test in this case) shows up in my serial monitor, it even sends back that "Message recieved"; the ESP32 also reacts to that reboot "command".
Now my question is how do I make the app work the same way as or "incorporate" netcat?