Download file from node script

I hope you like this Post, Please feel free to comment below, your suggestion and problems if you face - we are here to solve your problems. I am Arjun from Hyderabad India. Aside from work, I like gardening and spending time with pets. Hi Arjun Res. And Cant download file. The file is not in Local node project directory, It is in another outside directory. In Controller. Now in your text editor you will see a file with a name - package.

Now create a javascript file with the same name as main that is index. And your application will be running in the localhost Now let's review the above code line by line.

Both of these are same. Now what is happening here is that we importing express module in our file to use it's functions and components. Now like express module we are importing http module to use it's functions to create a server which we can use.

The first function is get function Syntax: app. Phil Really good point. I have updated the example with an earlier guard check before falling into the recursive networking calls but left the success file handling code the same.

This short circuit guard statement should save some time in this case now. Vince Yuan's code is great but it seems to be something wrong. But we don't check the result if callback callback err. Feel Physics Feel Physics 2, 4 4 gold badges 23 23 silver badges 36 36 bronze badges. I prefer request because you can use both http and https with it.

Looks like Request has been deprecated github. No new changes are expected to land. In fact, none have landed for some time. Wai Ha Lee 7, 61 61 gold badges 56 56 silver badges 85 85 bronze badges. Idan Dagan Idan Dagan 7, 3 3 gold badges 28 28 silver badges 38 38 bronze badges. Roman Podlinov Roman Podlinov Very clean, thank you.

What do the flags 'wx' do when you're creating the writeStream? It is returning garbage character if file name is other than ascii like if filename is in japanese. Do you think ajax-request is not a third party library? Download using promise, which resolve a readable stream. The questions was specific to not include third party modes : — David Gatti. If you are using express use res. A 13k 4 4 gold badges 90 90 silver badges bronze badges.

Using the http2 Module I saw answers using the http , https , and request modules. I'd like to add one using yet another native NodeJS module that supports either the http or https protocol: Solution I've referenced the official NodeJS API, as well as some of the other answers on this question for something I'm doing. Rik Rik 3 3 silver badges 8 8 bronze badges.

Is this backward compatible? Works everywhere or only for http2? Neil I'm assuming you are asking if http2 is backward compatible with http1. Because http2 improves framing; adding binary compression, the ability to push from server to client, and simultaneous connections - it is absolutely required that both server and client know the implementation this allows abstraction of implementation from the application too. Good news is that all major browsers have supported http2 since about - and Node as a client does too.

Node, Nginx, and Apache offer it server side - so most use cases are covered. Its a vast improvement. Thanks for the reply Rik — Neil. Without library it could be buggy just to point out. Here my suggestion: Call system tool like wget or curl use some tool like node-wget-promise which also very simple to use.

Geng Jiawen Geng Jiawen 7, 2 2 gold badges 41 41 silver badges 36 36 bronze badges. Writing my own solution since the existing didn't fit my requirements. Alex Pilugin Alex Pilugin 2 2 gold badges 9 9 silver badges 30 30 bronze badges. Pankaj Pankaj 1 1 gold badge 3 3 silver badges 9 9 bronze badges. Frankenmint Frankenmint 1, 1 1 gold badge 17 17 silver badges 30 30 bronze badges.

Like: res. Jeremy M. Yin Yin 9. 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?