It’s important to note that in any request sent using htmx we have access, server-side, to a number of HTTP headers we can use.

We’ve got quite a few useful ones:

• XH-Current-URL the URL the request comes from
• XH-Target the id of the target element
• XH-Trigger the id of the triggered element
• XH-Trigger-Name the name of the triggered element

Remember, target = the element we’ll print the response to. trigger = the element that triggered the request.

We’ve talked about HX-Prompt already, if you have a prompt in the tag, you get what the user wrote in the prompt in this header.

See the full list of request headers: https://htmx.org/docs/#request-headers

Lessons in this unit:

0:	Introduction
1:	Why htmx
2:	The core idea of htmx
3:	Installing htmx
4:	Doing a GET request
5:	Swap
6:	POST request
7:	Targets
8:	Loading indicator
9:	Confirming actions, and prompts
10:	Triggers
11:	▶︎ Request headers
12:	Response headers
13:	Events