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dicomweb_rendered_retrieve.go
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dicomweb_rendered_retrieve.go
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// Copyright 2019 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 snippets
// [START healthcare_dicomweb_retrieve_rendered]
import (
"context"
"fmt"
"io"
"os"
healthcare "google.golang.org/api/healthcare/v1"
)
// dicomWebRetrieveRendered retrieves a consumer imaging format like JPEG or PNG.
func dicomWebRetrieveRendered(w io.Writer, projectID, location, datasetID, dicomStoreID, dicomWebPath string, outputFile string) error {
// projectID := "my-project"
// location := "us-central1"
// datasetID := "my-dataset"
// dicomStoreID := "my-dicom-store"
// dicomWebPath := "studies/1.3.6.1.4.1.11129.5.5.1113639985/series/1.3.6.1.4.1.11129.5.5.1953511724/instances/1.3.6.1.4.1.11129.5.5.9562821369/rendered"
// outputFile := "rendered_image.png"
ctx := context.Background()
healthcareService, err := healthcare.NewService(ctx)
if err != nil {
return fmt.Errorf("healthcare.NewService: %w", err)
}
storesService := healthcareService.Projects.Locations.Datasets.DicomStores.Studies.Series.Instances
parent := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)
call := storesService.RetrieveRendered(parent, dicomWebPath)
call.Header().Set("Accept", "image/png")
resp, err := call.Do()
if err != nil {
return fmt.Errorf("RetrieveRendered: %w", err)
}
defer resp.Body.Close()
if resp.StatusCode > 299 {
return fmt.Errorf("RetrieveRendered: status %d %s: %s", resp.StatusCode, resp.Status, resp.Body)
}
file, err := os.Create(outputFile)
if err != nil {
return fmt.Errorf("os.Create: %w", err)
}
defer file.Close()
if _, err := io.Copy(file, resp.Body); err != nil {
return fmt.Errorf("io.Copy: %w", err)
}
fmt.Fprintf(w, "Rendered PNG image retrieved and downloaded to file: %v\n", outputFile)
return nil
}
// [END healthcare_dicomweb_retrieve_rendered]