What is GZIP? So if you are not enabling GZIP in the request options then the actual response from the server that you will get is compressed gibberish that will result in a corrupt file.
Also make sure the headers that you are setting are correct and they are in sync with what a normal request to that file would look like. How do I download a file with Node. Improve this question. Joseph is making an incorrect assertion that all node processes are server processes — lededje.
It is prefectly doable. Add a comment. Active Oldest Votes. Improve this answer. Michelle Tilley Michelle Tilley k 39 39 gold badges silver badges bronze badges. I got the following console output when I ran this script: node.
Does this code close the file properly when the script ends or would it lose data? This depends upon the req url type if you are requesting https you must use https otherwise it will throw error. EthanKeiley why do you say that it isn't closed properly? By default createWriteStream will set autoClose to true and readable. Show 14 more comments. Don't forget to handle errors!
The following code is based on Augusto Roman's answer. But we don't check the result if cb cb err. Vince Yuan Vince Yuan VinceYuan the callback is confusing me. What would I place as the cb argument? Abdul Sounds like you are very new to node.
Take a look at this tutorial: tutorialspoint. Abdul maybe it would be good if you share with the rest of the class what you have figured out? Is there a way to see the speed of the download? Show 7 more comments. Kelvin Omereshone 2 2 silver badges 11 11 bronze badges. Abdul You specify the callback with a function only if you need to do something when the file has been successfully fetched. It would be good to check the status code before saving: response. But we don't check the result return cb err.
Buzut Buzut 4, 4 4 gold badges 41 41 silver badges 50 50 bronze badges. The request module just works straight for HTTPs. S Ventura. It's more error prone without a doubt. Drop your email in the box below and I'll send new stuff straight into your inbox!
Nathan Sebhastian is a software engineer with a passion for writing tech tutorials. Learn JavaScript and other web development technology concepts through easy-to-understand explanations written in plain English. How to download a file using NodeJS without any extra package Download a file to your filesystem using NodeJS without any extra package Posted on June 26, You can download a file an image, a text, or any kind of file and save it to your filesystem using NodeJS built-in https and fs module.
Level up your programming skills I'm sending out an occasional email with the latest programming tutorials. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website.
These cookies will be stored in your browser only with your consent. You also have the option to opt-out of these cookies. But opting out of some of these cookies may have an effect on your browsing experience.
Necessary Necessary. 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. All the three methods have multiple options, you choice will ultimately depend on what your needs are.
0コメント