Splunk real-time data input from HTML page not working

[tamduong16]

I've been trying to look for a way to for Splunk to input real-time data and I come across Rest API thinking it could be a solution to my problem. But after I set it up a Rest api base on the instruction from Splunk, no data is being added to Splunk. Could anyone let me know what I did wrong here? For testing purposes, I use a Wikipedia site as an endpoint url and I did not set up any kind of handler. I just want to know if this REST api could get me any type of information from the site. The below is a picture of the rest api I set up:

[Damien_Dallimor]

Don't use the _json sourcetype. Define a custom sourcetype.

[tamduong16]

I set a custom sourcetype but it doesn't work! Do I have to configure the source type so that it look for html content? Thanks