drupal8 POST endpoint

Hi,

I’ve lifted this from a chat I put into the drupal-support IRC channel. No reply in there. Sorry for x-posting

I could do with a wee bit of help: https://www.pastery.net/pjbtht/ – tldr; why is my POST giving 404, when the GET to the corresponding url works ok?

all code is in that pastery bin. Except to add that I’ve change sync/rest.resource.single_consultation.yml adding POST to the methods: section, and it still doesn’t work.

Thanks
Dominic

Drupal version: 


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