Slack Api response shows encoded characters for Japanese characters in message

Question

I am using Slack API /channels.history to get messages of channel. My messages have Japanese characters. Api response is always encoded for Japanese characters as below:

Original message in Slack web interface:

me: テスト

But It returns response:

{...
'text': '\u30c6\u30b9\u30c8',
}

I don't know which encoding method is used here. Then, how can I get Japanese characters back from Api response.

Answer 1

This is a unicode notation from Java. \u stands for unicode, probably UTF-8. the 4 bytes in hex notation define the character.

To convert it back check for methods in your programming language to handle UTF-8 encoding.

Also see this question for info on how to handle this encoding in Java.