How to sanitize the contents coming from an input widget

[nathannino]

I'll be honest, I am not certain if this is more of a eww question or a bash question.

I wrote this as part of a widget (or rather as a way to test how the input widget worked before I added the actual functionality to it) :

(input :onchange "eww update hahalolxd='{}'")
(label :text "${hahalolxd}")

Now, the variable name is very temporary, but if I were to write this into the input :

hi hello' oups rest is gone

the label only shows this :

hi hello

From my understanding, the ' will remove any special meaning to every charater... except for the ' character, as it has to have a way to end that delimitation.
But how do I escape the ' if I can't modify the value that will replace {}?