Select Component

Since the API doesn’t allow for editing of the headers in the blocks.
Is there a way in which you can select a component in the design view ?

For example:
I have a text-box called username
and in the API component can I reference it by saying &username?
or is it possible to get data from a variable ?

HI @xslapslobbys - sorry for the delayed response.

Is this an API that you are creating yourself, or if not, do you have a reference doc for the API?

Thanks.

I have the site made in django.
For the API it is using django rest framework.

The thing is that the data that is being sent in the header is based on user input.
As the data is not constant for each use it makes it had for me to contact the API because it requires authentication which is what i am trying to pass.