No thumbnail produced

[Ejyption]

I have installed and included the library, all runs fine with source folders and destination folder. As my nodejs server runs it prints out all the names of the images through the node-thumbnail library. The callback prints 'All done!' But no files are in the destination folder.

I am unsure of what the problem could be

[honza]

What version? Master or from the npm distribution?

[honza]

Can you post some sample code to help me debug this?

[ntpnhan]

I encounter the same problem, i install via "npm install node-thumbnail"

[honza]

@ntpnhan Can you post some sample code to help me debug this?

[shvhh]

var fs = require('fs');
var gm = require('gm');
var path  = require("path");
var express = require('express');
var multer  = require('multer');
var app = express();
var storage = multer.diskStorage({
  destination: function(request, files, callback) {
    callback(null,path.join(__dirname, '/uploads'));
  },

  filename: function(request, files, callback) {
    callback(null, Date.now() + files.originalname);
  }

});

var upload = multer({storage: storage});
var thumb = require('node-thumbnail').thumb;
app.use('/static', express.static(path.join(__dirname, 'uploads')))

app.post('/addimg',upload.any(), function (req, res) { 
  thumbnailc(req.files[0].filename);

  res.sendFile(__dirname + '/index.html'); 
});

app.get('/' , function(req,res) {
  res.sendFile(__dirname + '/index.html');
});

// https://github.com/honza/node-thumbnail/issues/17  post a issue on this, everything is fine 
function thumbnailc(name) { 
  thumb({
    source:  'abc.jpg',
    destination:   path.join(__dirname,'uploads/thum'),
    concurrency: 1
  }, function(err) {
    console.log('All done!',err);
  });
};

var server = app.listen(8081, function () {
  var host = server.address().address;
  var port = server.address().port;

   console.log("Example app listening at http://%s:%s", host, port)
});

[shvhh]

help me out

[shvhh]

no output

[honza]

@shvhh Does the destination file exist?

[honza]

I just published 0.8.1 to npm, would you mind trying that? It has better error messages.

[shvhh]

yes it is

[Hardik21]

I have same problem, How to solve it?

 `thumb({
                source: "./Media/ChatDocUpload/" + _fileName,
                destination: "./Media/ChatDocUpload/" + _fileName,
                concurrency: 1,
                overwrite: true,
                width: 50, height: 50
            }, function (err, stdout, stderr) {
                console.log('All done!');
            });`

This is my code. Function call successfully without error. But not generate Thumb Image.

[honza]

@Hardik21

You should inspect the value of the err argument in the callback to see if any errors occurred. For example:

thumb(options, function(err, stdout, stderr) {
  if (err) {
    throw err;
  }

  console.log('All done!');
});

Also, please note that the source and destination configuration options should point to directories, not files.

Please let me know if you're still having issues. I'm happy to help.

[Hardik21]

Hi, For 'source': it is filepath with filename. Bcz without filename how to identify image for thumbnail? For 'destination': I set only path without filename. Am i right?

And,

I set

thumb(options, function(err, stdout, stderr) { if (err) { console.log(err); } else console.log('All done!'); });

Then it show in console: 'All done!'. But in destination dir no thumb image generate.

[honza]

Here is my directory structure:

code.js
dest/
package.json
src/
    cat.jpg

Here is package.json:

{
  "name": "test",
  "dependencies": {
    "node-thumbnail": "^0.8.1"
  }
}

Here is code.js:

var thumb = require('node-thumbnail').thumb;

thumb({
  source: 'src/cat.jpg',
  destination: 'dest',
  concurrency: 1,
  overwrite: true,
  width: 50, height: 50
}, function (err, stdout, stderr) {
  console.log('All done!');
});

The src/ direcotory has a single image in it, called cat.jpg.

I install the dependencies with npm install.

Then, I run the code like this:

$ node code.js

Here is the output:

cat.jpg
All done!
all items have been processed

This is with:

• nodejs v6.10.2
• npm 3.10.10

[Hardik21]

I also get that output. But thumb image not generated in destination directory.

[honza]

Can you create a minimal project directory that reproduces this issue, tar it up, and send it to me?

[Hardik21]

Hi, I upload demo code in Google Drive. Plz download from there and help me to solve.

Click Here for google drive

Thanks

[honza]

Unfortunately, your example works perfectly for me.

[honza]

What is your nodejs and npm version? What operating system are you using?

[Hardik21]

node: v6.7.0 npm: 4.5.0 OS: Windows 7 64bit

[Hardik21]

you have generate thumb image in './Media/ChatDocUpload_Thumb/'?

[honza]

I just released version 0.9.0 which removes the dependency on imagemagick. I think that's what is causing the issue on Windows. If you upgrade, you will get a version that's only using Javascript.

[Hardik21]

Yes. Version 0.9.0 is perfect for windows. Its working awesome. You save my one day. Thanks

[honza]

:sparkles: