About Japanese support of cometchat

cometchat is a chat API & message SDK that allows you to easily set up a chat function on your website.

I used this comet at pro (cometch at's more flexible service) API to add chat functionality to my site. (Implemented in python (Django) based on here) But after completion, a tragedy will occur.

I can't send Japanese text with cometchat. .. .. .. My site is in Japanese

The site has become international.

The official document says, "Japanese is also supported!" Actually, when I try to send a message in Japanese, I get the following error.

UnicodeEncodeError: 'latin-1' codec can't encode characters 
in position 90-92: Body ('Ah ah') is not valid Latin-1. 
Use body.encode('utf-8') if you want to send it encoded in UTF-8.

Use body.encode ('utf-8') ← The above error tells me that I should try this, If you try, ERR_BAD_REQUEST will be returned.

{"error":{"code":"ERR_BAD_REQUEST","details":{"receiver":["The
 receiver field is required."],"receiverType":["The receiver 
type field is required."]},"message":"Failed to validate the 
data sent with the request."}}

Solution

When sending a message. Convert to byte and convert to hexadecimal character string.

text = "Message you want to send"
text.encode().hex() 
# 'e98081e3828ae3819fe38184e383a1e38383e382bbe383bce382b8'

When receiving a message. Converts a hexadecimal string to bytes and bytes to str.

bytes.fromhex(text).decode()
# "Message you want to send"

Since it is written that Japanese is also supported on the official website, It may be okay to send it normally.