Function detectPdfText

vision/detect.js:688–739

(bucketName, fileName, outputPrefix)

}

async function detectPdfText(bucketName, fileName, outputPrefix) {
  // [START vision_text_detection_pdf_gcs]

  // Imports the Google Cloud client libraries
  const vision = require('@google-cloud/vision').v1;

  // Creates a client
  const client = new vision.ImageAnnotatorClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // Bucket where the file resides
  // const bucketName = 'my-bucket';
  // Path to PDF file within bucket
  // const fileName = 'path/to/document.pdf';
  // The folder to store the results
  // const outputPrefix = 'results'

  const gcsSourceUri = `gs://${bucketName}/${fileName}`;
  const gcsDestinationUri = `gs://${bucketName}/${outputPrefix}/`;

  const inputConfig = {
    // Supported mime_types are: 'application/pdf' and 'image/tiff'
    mimeType: 'application/pdf',
    gcsSource: {
      uri: gcsSourceUri,
    },
  };
  const outputConfig = {
    gcsDestination: {
      uri: gcsDestinationUri,
    },
  };
  const features = [{type: 'DOCUMENT_TEXT_DETECTION'}];
  const request = {
    requests: [
      {
        inputConfig: inputConfig,
        features: features,
        outputConfig: outputConfig,
      },
    ],
  };

  const [operation] = await client.asyncBatchAnnotateFiles(request);
  const [filesResponse] = await operation.promise();
  const destinationUri =
    filesResponse.responses[0].outputConfig.gcsDestination.uri;
  console.log('Json saved to: ' + destinationUri);
  // [END vision_text_detection_pdf_gcs]
}

async function localizeObjects(fileName) {
  // [START vision_localize_objects]