res.download from a url

[Angelo Chen]

Hi,

this works:
res.download('localfile.jpeg')

this not working:
res.download('http://sample123.com/file.jpeg')

possible to do above? reason is, in the page I have a <a href="">save
as</a>, using res.download will save the file without opening a page.

Thanks,
Angelo

[greelgorke]

res.download is for local files. it does not a redirection or something like that. if you want to proxy than you have to do something like that in your route:

app.get('some path', function(req,res,next){

  http.get('http://sample123.com/file.jpeg', function(err, dlRes){

     if(err) return res.send(err.code) 

     if (dlRes.statusCode == 200 /* or all other possible ones*/)

        res.attachment(/* you could extract the filename from the path of http.get */)

        dlRes.pipe(res)

  })

})


this code is untested and just there to give you a clue. it uses nodes Streaming API.

[Angelo Chen]

pipie works, thanks.

[greelgorke]

i have an eror in my example. here the better one:

app.get('some path', function(req,res,next){

  http.get('http://sample123.com/file.jpeg', function(dlRes){

     if (dlRes.statusCode == 200 /* or all other possible ones*/){

        res.attachment(/* you could extract the filename from the path of http.get */)

        dlRes.pipe(res)

     } else res.send(dlRes.statusCode)

  }).on('error', function(err){ res.send(err.code) })

})