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.
What is the difference between exports and module. Let's first take a look at what the module object is all about. Create a file named run. This is useful in cases where you're generating many dynamic url's, some of which can result in a http status code for example , and there is no point in repeating that request. You can pass a proxy string.
Under the hood, this will create a custom httpsAgent. This feature wasn't tested extensively. If the auto-repeat feature is enabled by setting the maxAttempts to higher than 1 , then only a failure of the final attempt will throw an error. Git github. If you encounter any bugs or have a question, please don't hesitate to open an issue. An error is thrown in case of network errors, or status codes of and above. It's quite rare, but happens , will not have a "statusCode" property.
I'd even validate by checking response code. Here it's considered success only for response code, but other codes might be good. Despite the relative simplicity of this code, I would advise to use the request module as it handles many more protocols hello HTTPS! 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. Joseph is making an incorrect assertion that all node processes are server processes — lededje. It is prefectly doable. Add a comment. Active Oldest Votes. 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. The file could be anything: a PDF file, an image, or a simple text file. The fs module grants you access to the filesystem to read and write files in Node. You can also use the download package from the NPM registry if you do not like low-level Node.
The download package allows you to download a file from a URL and save it under a folder as shown below:.
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