Downloading using wget #Īlthough it says downloading using wget, this example applies to downloading using curl with the -O option too. Also we listen to spawn()'s exit event to make note of any errors. The only difference is that the data and end events are listened on the stdout object of spawn(). The way data was written to the instance of fs.createWriteStream is similar to way we did for HTTP.get. when the spawn child process exits, check if there were any errors and close the writeable stream add an 'end' event listener to close the writeable streamĬonsole.log(file_name + ' downloaded to ' + DOWNLOAD_DIR) Var child = exec(mkdir, function(err, stdout, stderr) ) This step is not required if you have manually created the directory We will be downloading the files to a directory, so make sure it's there ![]() Var spawn = require('child_process').spawn Var exec = require('child_process').exec The advantage of using HTTP.get() is that you don't rely on any external programs to download the files. HTTP.get() is Node's built-in method for making HTTP GET requests, which can also be used for downloading files using the HTTP protocol. Read the comments in the code thoroughly, you will not only learn how to download files, but will also learn more about Node's child_process, fs, Buffer, and Stream modules. To get the examples working makes sure you have the dependencies and the app variables set up and defined. ![]() I have created functions for all of them. There are three approaches to writing a file downloader using Node:
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