go-serial | A cross-platform serial library for go-lang | Wrapper library

I previously asked a similar question: How do I add a reverse field value into the django serializer data set

But oddly, what worked for the first model doesn't work for the second. Here are my models:

1. How do I add the host port to the URLs in my serialized responses? Django is currently providing them without port so the links are broken.
2. Or, if adding the port is not the correct approach, how do I change my configuration such that I don't need to specify port in the URL while accessing the resource?

Output (missing port ":1337" in image_url field)

I have arduino uno with simple firmware which provides simple API over serial port:

• Command "read" returns the current state
• Command "on" sets the state to "on"
• Command "off" sets the state to "off"

Now I want to implement a client for this device. If I use Arduino IDE serial monitor, this API works as expected. If I use python with pySerial library, API works.

But whenever I try to read data from the serial port using golang and go-serial, my read calls hangs (but works fine with /dev/pts/X created by socat, for example)

Python client