Domain not available

Message:
After creating a function using the Functions API, the domain is not created automatically, even though the documentation says a domain should be created after each deployment.

What I did:

Connected GitHub, got the installationId and repositoryId.

Successfully uploaded the function and deployed it.

However, the domain was not created, I had to create it manually.

I also tried uploading via file (Manual), and again the domain was not created.

I checked that when I create a function via the UI, the domain is created automatically. But when using the API, I need to create the domain manually and then redeploy.

My question:
Is this the expected behavior, or am I doing something wrong in my code?
If this is how it’s supposed to work, that’s fine — I’ll just create the domain manually.

Code:

const myFunc = await functions.create({
  functionId: ID.unique(),
  name: "My Function 3",
  runtime: "node-18.0",
  execute: [],
  scopes: ["users.read"],
  installationId: "",
  providerRepositoryId: "",
  providerBranch: "main",
  providerRootDirectory: "./",
  providerSilentMode: false,
  entrypoint: "src/index.js",
  commands: "npm install",
})

const myDeployment = await functions.createVcsDeployment({
    functionId: myFunc.$id,
    type: "branch",
    reference: "main",
    activate: true, // optional
});