Function extractDescriptions

vision/textDetection.js:166–174

* Grab the description, and push it into redis. * @param {string} filename Name of the file being processed * @param {Index} index The Index object that wraps Redis * @param {*} response Individual response from the Cloud Vision API * @returns {Promise }

(filename, index, response)

 * @returns {Promise<void>}
 */
async function extractDescriptions(filename, index, response) {
  if (response.textAnnotations.length) {
    const words = extractDescription(response.textAnnotations);
    await index.add(filename, words);
  } else {
    console.log(`${filename} had no discernable text.`);
    await index.setContainsNoText(filename);
  }
}

/**
 * Given a set of image file paths, extract the text and run them through the