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rollback_schema.go
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/
rollback_schema.go
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// Copyright 2023 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// https://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package schema
// [START pubsub_rollback_schema]
import (
"context"
"fmt"
"io"
"cloud.google.com/go/pubsub"
)
// rollbackSchema creates a new schema revision that is a copy of the provided revisionID.
func rollbackSchema(w io.Writer, projectID, schemaID, revisionID string) error {
// projectID := "my-project-id"
// schemaID := "my-schema"
// revisionID := "a1b2c3d4"
ctx := context.Background()
client, err := pubsub.NewSchemaClient(ctx, projectID)
if err != nil {
return fmt.Errorf("pubsub.NewSchemaClient: %w", err)
}
defer client.Close()
s, err := client.RollbackSchema(ctx, schemaID, revisionID)
if err != nil {
return fmt.Errorf("RollbackSchema: %w", err)
}
fmt.Fprintf(w, "Rolled back a schema: %#v\n", s)
return nil
}
// [END pubsub_rollback_schema]