What is the best way to parse the domain from a Slack message? I have a Slack bot that is used to perform lookups on any hostname that is provided. When the bot receives the payload from Slack the domain is in this format: <http://example.com|example.com>. For this application I simply need example.com.
One method to parse this would be to split the string using the '|' character and removing the "< >" characters and simply use the 2nd element.
msg = slack_response
strip1 = msg.replace(">", "")
strip2 = strip1.replace("<", "")
str_arr = strip2.split("|")
domain = str_arr[1]
Are there any better methods/libraries that can be used to parse the domain out? The bot will not always receive a domain and it can sometimes be in the form of an IP as well such as 8.8.8.8. I would prefer to perform this in a way that can deal for both scenarios.
You could use regex but since the response from slack is predictable I think it's probably overkill.
If you wanted a one liner you could do
msg.split("|")[-1][:-1]
However, because readability counts I would recommend something like
start = msg.find("|") + 1
stop = msg.find{">")
domain = msg[start:stop]