Merge pull request #2 from flowmar/dev

Fix code to show image in response before deleting from server

Author: flowmar

src/server.ts

@@ -34,18 +34,22 @@ import { filterImageFromURL, deleteLocalFiles } from './util/util';
  app.get('/filteredimage', async (req, res) => {
  // Validate the image_url query
  if (!req.query.image_url) {
- res.send('Please use the path to an image in your url.');
+ res.status(400).send('Please use the path to an image in your url.');
  }
 
  let image_url = req.query.image_url;
 
  // Call filterImageFromURL(image_url) to filter the image
- let filteredImage = await filterImageFromURL(image_url);
-
- // Send the resulting file in the response
- await res.status(200).sendFile(filteredImage);
- // Deletes any files on the server on finish of the response
- deleteLocalFiles([filteredImage]);
+ filterImageFromURL(image_url)
+ // Send the resulting file in the response
+ .then((result) => {
+ res.status(200).sendFile(result);
+ // Delete any files on the server on finish of the response
+ res.on('finish', () => deleteLocalFiles([result]));
+ })
+ .catch((error) => {
+ res.status(error.status).send(error.message);
+ });
  });
 
  // Root Endpoint