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API: get image by ID, not all get requests are fulfilled, request status is forever pending? #7

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dkjain opened this issue Nov 8, 2019 · 0 comments
Open

API: get image by ID, not all get requests are fulfilled, request status is forever pending? #7

dkjain opened this issue Nov 8, 2019 · 0 comments

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@dkjain
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dkjain commented Nov 8, 2019

Hello,

I followed the tutorial. All the API's works fine however when API to retrieve images by ID isn't working for multiple images. Most of get requests are pending on server (status is pending in Network panel of Chrome Dev tools).

The requests never gets completed once in pending state (forever pending) and server gets stuck in that.

Here is the screenshot of pending-network-requests-chrome-dev-tools:

pending-network-requests-chrome-dev-tools

###API to Retrieve Image by Id

app.get('/images/:id', async (req, res) => {
    try {
        const col = await loadCollection(COLLECTION_NAME, db);
        const result = col.get(req.params.id);

        if (!result) {
            res.sendStatus(404);
            return;
        };

        res.setHeader('Content-Type', result.mimetype);
        fs.createReadStream(path.join(UPLOAD_PATH, result.filename)).pipe(res);
    } catch (err) {
        res.sendStatus(400);
    }
})

HTML

<!doctype html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Fetch Image (NodeJS-LokiJS API) - Example</title>
    <style>
      .photo {
        width: 100px;
        display: block;
        margin-bottom: 5px;
        border: 2px solid black;
      }
    </style>    
  </head>
  <body>
    <h1>HTML Example</h1>
    <p>
      JPEG:<br>
      <img class="photo" src="http://localhost:3000/images/1">
      <img class="photo" src="http://localhost:3000/images/2">
      <img class="photo" src="http://localhost:3000/images/3">
      <img class="photo" src="http://localhost:3000/images/4">
      <img class="photo" src="http://localhost:3000/images/5">
      <img class="photo" src="http://localhost:3000/images/6">
    </p>
  </body>
</html>
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@dkjain