How to update Worker secrets via REST API (or TS SDK)?

I found such undocumented endpoints in

wrangler

wrangler

Unfortunately they are not working. The update one fails with error saying that the key is already in use - of course it is:

{
  code: 10053,
  message: "Binding name 'INSTAGRAM_ACCESS_TOKEN' already in use. Please use a different name and try again."
}

{
  code: 10053,
  message: "Binding name 'INSTAGRAM_ACCESS_TOKEN' already in use. Please use a different name and try again."
}

{
  code: 10053,
  message: "Binding name 'INSTAGRAM_ACCESS_TOKEN' already in use. Please use a different name and try again."
}

{
  code: 10053,
  message: "Binding name 'INSTAGRAM_ACCESS_TOKEN' already in use. Please use a different name and try again."
}

So I tried to delete it first. And the delete one doesn't work as well saying the binding not found when it's already there:

 {
  code: 10056,
  message: "Binding 'INSTAGRAM_ACCESS_TOKEN' not found. Please use a different name and try again."
}

 {
  code: 10056,
  message: "Binding 'INSTAGRAM_ACCESS_TOKEN' not found. Please use a different name and try again."
}

 {
  code: 10056,
  message: "Binding 'INSTAGRAM_ACCESS_TOKEN' not found. Please use a different name and try again."
}

 {
  code: 10056,
  message: "Binding 'INSTAGRAM_ACCESS_TOKEN' not found. Please use a different name and try again."
}

The API access token I'm using has full read/write previlages in the scope of the worker's zone.

I'm completely out of ideas. Please help.

GitHub

Home to Wrangler, the CLI for Cloudflare Workers® - cloudflare/workers-sdk