Migrated compute subnetworks data source to use transport_tpg.SendRequest

Author: nsamartsev

mmv1/third_party/terraform/services/compute/data_source_google_compute_subnetworks.go

@@ -94,22 +94,49 @@ func dataSourceGoogleComputeSubnetworksRead(d *schema.ResourceData, meta interfa
 
 	subnetworks := make([]map[string]interface{}, 0)
 
-	subnetworkList, err := NewClient(config, userAgent).Subnetworks.List(project, region).Filter(filter).Do()
+	baseURL, err := tpgresource.ReplaceVars(d, config, "{{ComputeBasePath}}projects/{{project}}/regions/{{region}}/subnetworks")
+	if err != nil {
+		return err
+	}
+
+	params := map[string]string{}
+	if filter != "" {
+		params["filter"] = filter
+	}
+	url, err := transport_tpg.AddQueryParams(baseURL, params)
+	if err != nil {
+		return err
+	}
+
+	res, err := transport_tpg.SendRequest(transport_tpg.SendRequestOptions{
+		Config:    config,
+		Method:    "GET",
+		Project:   project,
+		RawURL:    url,
+		UserAgent: userAgent,
+	})
 	if err != nil {
 		return transport_tpg.HandleNotFoundError(err, d, fmt.Sprintf("Subnetworks : %s %s", project, region))
 	}
 
-	for _, subnet := range subnetworkList.Items {
-		subnetworks = append(subnetworks, map[string]interface{}{
-			"description":              subnet.Description,
-			"ip_cidr_range":            subnet.IpCidrRange,
-			"name":                     subnet.Name,
-			"network_self_link":        filepath.Base(subnet.Network),
-			"network":                  subnet.Network,
-			"network_name":             filepath.Base(subnet.Network),
-			"private_ip_google_access": subnet.PrivateIpGoogleAccess,
-			"self_link":                subnet.SelfLink,
-		})
+	if items, ok := res["items"].([]interface{}); ok {
+		for _, item := range items {
+			subnet, ok := item.(map[string]interface{})
+			if !ok {
+				continue
+			}
+			network, _ := subnet["network"].(string)
+			subnetworks = append(subnetworks, map[string]interface{}{
+				"description":              subnet["description"],
+				"ip_cidr_range":            subnet["ipCidrRange"],
+				"name":                     subnet["name"],
+				"network_self_link":        filepath.Base(network),
+				"network":                  subnet["network"],
+				"network_name":             filepath.Base(network),
+				"private_ip_google_access": subnet["privateIpGoogleAccess"],
+				"self_link":                subnet["selfLink"],
+			})
+		}
 	}
 
 	if err := d.Set("subnetworks", subnetworks); err != nil {