Is a "theme extension" necessary, when only used via JSONAPI and Vue?

[rowild]

Hi,

this is a rather general question: If I decide to use TYPO3 in a "headless" manner and connect to it only via JSONAPI, is there any scenario, where I actually need what I think is called a theme extension?

The site is very simple: only 1 user, who sells his music scores. A customer management will be necessary, but I think that does not require a theme extension, right? Or am I missing out on something?

[aimeos]

No, you don't need any Aimeos theme extension if you build your own PWA.
The theme extensions are only for HTML based frontends.

[rowild]

Thank you very much for your answer! And please apologize for my late response!

A follow-up question: How can I use TYPO3's headless extension alongside Aimeos' json features? It seems that headless predominates the RestAPI calls, when the template is included in the Start page. So I changed my page tree to this structure:

START <-- includes only "page = PAGE" and "page.typeNum = 0"
Content <-- includes headless typoscript
[pages]
Shop <-- includes aimeos typoscript
[shop pages]
jsonapi

The call to Aimeos' `jsonapi` should be
curl -X OPTIONS 'https://jvds.ddev.site/jsonapi'

But that only returns
curl: (35) LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to jvds.ddev.site:443

What am I doing wrong?
TYPO3 11.5, ddev, php 8.1

[aimeos]

Guess, your DDEV setup doesn't support HTTPS. Did you try HTTP instead?

[rowild]

The headless ext returns valid data... Working with "normal" typo3 fe works fine, too.

"curl" calling only http returns a "not found"
log-in on a ddev TYPO3 without https does not work (login does not redirect; manually calling /typo3 redirects to https, even though there is a separate domain with http...)

Also tried colima, but there the same problem occurs...