support partial mode to avoid writing diff to state while Update error

internal/services/azapi_resource.go

@@ -281,6 +281,10 @@ func resourceAzApiResourceCreateUpdate(d *schema.ResourceData, meta interface{})
 	ctx, cancel := tf.ForCreateUpdate(meta.(*clients.Client).StopContext, d)
 	defer cancel()
 
+	if !d.IsNewResource() {
+		d.Partial(true)
+	}
+
 	config := d.GetRawConfig()
 	var resourceName string
 
@@ -374,6 +378,10 @@ func resourceAzApiResourceCreateUpdate(d *schema.ResourceData, meta interface{})
 
 	d.SetId(id.ID())
 
+	if !d.IsNewResource() {
+		d.Partial(false)
+	}
+
 	return resourceAzApiResourceRead(d, meta)
 }
 

internal/services/azapi_resource_action_resource.go

@@ -115,6 +115,10 @@ func resourceResourceActionCreateUpdate(d *schema.ResourceData, meta interface{}
 	ctx, cancel := tf.ForCreateUpdate(meta.(*clients.Client).StopContext, d)
 	defer cancel()
 
+	if !d.IsNewResource() {
+		d.Partial(true)
+	}
+
 	id, err := parse.ResourceIDWithResourceType(d.Get("resource_id").(string), d.Get("type").(string))
 	if err != nil {
 		return err
@@ -151,6 +155,10 @@ func resourceResourceActionCreateUpdate(d *schema.ResourceData, meta interface{}
 	// #nosec G104
 	d.Set("output", flattenOutput(responseBody, d.Get("response_export_values").([]interface{})))
 
+	if !d.IsNewResource() {
+		d.Partial(false)
+	}
+
 	return resourceResourceActionRead(d, meta)
 }
 

internal/services/azapi_resource_test.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"regexp"
 	"testing"
 
 	"github.com/Azure/terraform-provider-azapi/internal/acceptance"
@@ -43,6 +44,30 @@ func TestAccGenericResource_basic(t *testing.T) {
 	})
 }
 
+func TestAccGenericResource_invalidVersionUpdate(t *testing.T) {
+	data := acceptance.BuildTestData(t, "azapi_resource", "test")
+	r := GenericResource{}
+
+	data.ResourceTest(t, r, []resource.TestStep{
+		{
+			Config: r.basic(data),
+			Check: resource.ComposeTestCheckFunc(
+				check.That(data.ResourceName).ExistsInAzure(r),
+			),
+		},
+		data.ImportStep(defaultIgnores()...),
+		{
+			Config:      r.basicInvalidVersion(data),
+			ExpectError: regexp.MustCompile("400 Bad Request"),
+		},
+		data.ImportStep(defaultIgnores()...),
+		{
+			Config:   r.basic(data),
+			PlanOnly: true,
+		},
+	})
+}
+
 func TestAccGenericResource_requiresImport(t *testing.T) {
 	data := acceptance.BuildTestData(t, "azapi_resource", "test")
 	r := GenericResource{}
@@ -446,6 +471,31 @@ resource "azapi_resource" "test" {
 `, r.template(data), data.RandomString, testCertBase64)
 }
 
+func (r GenericResource) basicInvalidVersion(data acceptance.TestData) string {
+	return fmt.Sprintf(`
+%s
+
+resource "azurerm_automation_account" "test" {
+  name                = "acctest%[2]s"
+  location            = azurerm_resource_group.test.location
+  resource_group_name = azurerm_resource_group.test.name
+  sku_name            = "Basic"
+}
+
+resource "azapi_resource" "test" {
+  type                      = "Microsoft.Automation/automationAccounts/certificates@1999-01-01"
+  name                      = "acctest%[2]s"
+  parent_id                 = azurerm_automation_account.test.id
+  schema_validation_enabled = false
+  body = jsonencode({
+    properties = {
+      base64Value = "%[3]s"
+    }
+  })
+}
+`, r.template(data), data.RandomString, testCertBase64)
+}
+
 func (r GenericResource) requiresImport(data acceptance.TestData) string {
 	return fmt.Sprintf(`
 %s

internal/services/azapi_update_resource.go

@@ -148,6 +148,10 @@ func resourceAzApiUpdateResourceCreateUpdate(d *schema.ResourceData, meta interf
 	ctx, cancel := tf.ForCreateUpdate(meta.(*clients.Client).StopContext, d)
 	defer cancel()
 
+	if !d.IsNewResource() {
+		d.Partial(true)
+	}
+
 	var id parse.ResourceId
 	if name := d.Get("name").(string); len(name) != 0 {
 		buildId, err := parse.NewResourceID(d.Get("name").(string), d.Get("parent_id").(string), d.Get("type").(string))
@@ -194,6 +198,10 @@ func resourceAzApiUpdateResourceCreateUpdate(d *schema.ResourceData, meta interf
 
 	d.SetId(id.ID())
 
+	if !d.IsNewResource() {
+		d.Partial(false)
+	}
+
 	return resourceAzApiUpdateResourceRead(d, meta)
 }