How to download a file from online nodejs

Overview 2. Example 2. Conclusion 4. References Was this post helpful? Was this post helpful? Let us know if you liked the post. Yes No Tags: file-download , nodejs. Java Developer Zone. JavaDeveloperZone is a group of innovative software developers. Feel free to ask any questions and suggestions. Otherwise, immediate uses of the file may fail very rarely! Without scheduling the cb callback via close, you may get a race between accessing the file and the file actually being ready.

Maybe node. Don't make file when you get an error, and prefere to use timeout to close your request after X secondes.

From my answer to "What's the difference between. Modern version ES6, Promise, Node I decided do not use 3rd party libraries due to it can be easy done with standard Node. Kudo to Andrey Tkachenko for his gist which I modified. 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:.

The following was the test I wrote to try it out, which worked as intended:. It's typed, it's safer. Here's yet another way to handle it without 3rd party dependency and also searching for redirects:. You can try using res. I've found this approach to be the most helpful especially when it comes to pdfs and random other files. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow.

Learn more. How to download a file with Node. Ask Question. Asked 9 years, 3 months ago. Active 2 months ago. Viewed k times.

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 Do not forget to set the Cookie header or the Authorization Tokens if you are dealing with content only accessible to logged in users. You can easily do this by adding another parameter in the headers object just like this. Lets end this with an overall recap of what is happening with this snippet and how it is working step by step.

There are plenty of alternatives out there, like: http. Since the HTTP. One each data event, write the data to the writeable stream. Once the server finishes sending data, close the instance of fs. If you use fs. Use fs. To download files using curl in Node. We are using spawn instead of exec for the sake of convenience - spawn returns a stream with data event and doesn't have buffer size issue unlike exec. 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.