Managing externally deleted resources in custom provider

I’m running into an issue with a custom provider using he Terraform Provider Framework.

The service I’m integrating with exposes the following endpoints:

GET /webhooks
POST /webooks
GET /webooks/{:id}
PUT /webooks/{:id}
DELETE /webooks/{:id}

The API is not consistent IMHO - deleting a resource via DELETE /webhooks/{:id} only removes the webhook from the collection (e.g. GET /webooks) - the resource is still available at GET /webhooks/{:id}.

Unfortunately I’m unable to change the API, so I want to work around this limitation in my custom provider. I need help determining a way of properly denoting a deleted resource so that Terraform knows the resource has been deleted and needs to be re-created. This is my current attempt, although it’s still not working.

Here is a snippet containing the relevant Read method from the webhook resource:

// Read refreshes the Terraform state with the latest data.
func (r *webhookResource) Read(ctx context.Context, req resource.ReadRequest, resp *resource.ReadResponse) {

	var state WebhookResourceModel

	diags := req.State.Get(ctx, &state)
	if resp.Diagnostics.HasError() {


	tflog.Info(ctx, "Reading all webhooks")

	exists := false
	webhooks, err := r.client.GetWebhooks()
	if err != nil {
			"Error reading webhooks",
			"Could not read webhook, unexpected error: "+err.Error(),

	for _, w := range webhooks {
		tflog.Info(ctx, fmt.Sprintf("Found webhook[%s]: %+v", w.ID, w))
		if state.ID.ValueString() == w.ID {
			exists = true

    // *** How can you set state to "removed"?
	if !exists {
		tflog.Info(ctx, "Webhook does not exist!")
		state = WebhookResourceModel{}

		// Set empty state
		diags = resp.State.Set(ctx, &state)
		if resp.Diagnostics.HasError() {

// *** Assuming webhook exists

	tflog.Info(ctx, fmt.Sprintf("Reading webhook id: %s", state.ID.ValueString()))

	// Continue with normal reading of state...

Here’s a link to the provider for reference:

I found the solution to my problem here:

func (r exampleResource) Read(ctx context.Context, req tfsdk.ReadResourceRequest, resp *tfsdk.ReadResourceResponse) {
  // ... other logic to call API/client ...

  if /* "resource not found" error */ {

  // ... other logic to update resp.State from API/client ...