Struggling with syntax in for eglot-workspace-configuration in .dir-locals.el

[mishok13]

I have a somewhat weird issue with Terraform's LSP server, which I was trying to address by changing the workspaceFolders setting. I just need to provide Eglot with a configuration in .dir-locals.el so that M-x eglot-show-workspace-configuration produces this:

{
  "terraform-ls": {
    "workspaceFolders": [
      {
        "uri": "foo",
        "name": "bar"
      }
    ]
  }
}

Turns out, I'm hitting the limits of my ELisp knowledge here, as this is the closest I could get without eglot swearing at me:

((nil
  . ((eglot-workspace-configuration
      . (terraform-ls
         (workspaceFolders
          (uri "foo" name "bar")))))))

which in turn produces this which is not correct (workspaceFolders is supposed to be a list):

{
  "terraform-ls": {
    "workspaceFolders": {
      "uri": "foo",
      "name": "bar"
    }
  }
}

So while the question is not exactly Eglot-specific, I'm still wondering if someone here with much stronger ELisp knowledge could give a helping hand. Thanks!

[mishok13]

Well, obviously writing this question led me on a path of discovery of correct syntax:

((nil
  . ((eglot-workspace-configuration
      . (terraform-ls
         (workspaceFolders [(uri "foo" name "bar")]))))))

Apologies for spamming the discussions section. I'll show myself out.

[joaotavora]

Glad you fixed it. Did you find this through trial and error or via the doc? I recommend using keyword symbols in the examples, but it's not necessary. See https://joaotavora.github.io/eglot/#Examples

[mishok13]

Even though I recall seeing the examples, I did manage to miss this specific example which would save me a couple of hours at least https://joaotavora.github.io/eglot/#JSONRPC-objects-in-Elisp-1 I ended up with trial and error method, btw.