Create thumbnail.gs

Author: grant

slides/thumbnail/thumbnail.gs

@@ -0,0 +1,15 @@
+/**
+ * Saves a thumbnail image of the current Google Slide presentation in Google Drive.
+ * Logs the image URL.
+ * @param {number} i The zero-based slide index. 0 is the first slide.
+ * @example saveThumbnailImage(0)
+ */
+function saveThumbnailImage(i) {
+  var presentation =  SlidesApp.getActivePresentation();
+  var thumbnail = Slides.Presentations.Pages.getThumbnail(presentation.getId(),
+                                                          presentation.getSlides()[i].getObjectId());
+  var response = UrlFetchApp.fetch(thumbnail.contentUrl);
+  var image = response.getBlob();
+  var file = DriveApp.createFile(image);
+  Logger.log(file.getUrl());
+}