Nodejs download multiple files on click

That doesn't mean exec is inferior to spawn ; in fact we will use exec to download files using wget. The way data was written to the instance of fs. The only difference is that the data and end events are listened on the stdout object of spawn. Also we listen to spawn 's exit event to make note of any errors. Although it says downloading using wget , this example applies to downloading using curl with the -O option too. This method of downloading looks the most simple from coding point of view.

Why exec and not spawn? Because we just want wget to tell us if the work was done properly or not, we are not interested in buffers and streams. We are making wget do all the dirty work of making request, handling data, and saving the file for us.

As you might have guessed, this method is the fastest among the three methods I described. So now the question is - which method is the best? The answer - whatever suits your need. The wget method is probably the best is you want to save the files to the local disk, but certainly not if you want to send those files as a response to a current client request; for something like that you would need to use a stream. Could not find how to edit my OP. Just a couple of pointers: 1 I'm using Spring framework 3.

Bear Bibeault. I like Maneesh Godbole. I don't know if this is related, but I think this behavior could also be tied dow to your browser preferences. I use chrome and have configured it to use the Downloads folder. I never get asked where to download. However, for multiple downloads, I do get a confirmation dialog which says something like "This site is attempting to download multiple files".

Thanks Maneesh and Bear. Maneesh, yes, this is something that is primarily determined by browser preferences. It exports 2 functions:. When a client sends HTTP requests, we need to determine how the server will response by setting up the routes.

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