Internet Explorer does not support it. The idea is to programmatically create an anchor link, and then trigger the click event. This method is especially helpful for dynamically generated file URLs. Sometimes, you may want to save programmatically generated data as a file using JavaScript. That's where blobs and object URLs are useful. Your locally saved file is now a text file with just a URL inside What is your URL?
It should be absolute — Pawel. I couldnt find the info anywhere, hence why Ive done it wrong. Show 2 more comments. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. Built-in modules Node. You might also like How to terminate a Node. So let's fix this situation by promisifying it.
Our function returns a promise which allows us to track the process completion and the status. To install axios you can use npm or your favorite package manager like yarn :.
Then we're able to replace our function internal to get the same functionality. As I've mentioned before, we can change the entire function content while keeping the behavior persistent. As I've mentioned before, Javascript allows you to resolve most of the tasks with a separate module, and image downloading using NodeJS is not an exclusion from this rule.
Meet image-downloader. 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.
Anyway, in any case where using request module is an option, I'd advise it as it's way higher level and thus, easier and efficient. Alex, nope, this is an error message and there's a return. So if response. Thank you for showing example using request module. Show 3 more comments. MikeL 5, 38 38 silver badges 41 41 bronze badges.
Augusto Roman Augusto Roman 6 6 silver badges 4 4 bronze badges. What for are you storing request into a variable? You are right, there is no need to save the request, its not used anyway.
That's what you mean? Yes, I think that's what polkovnikov. Per default the fs. Bjarke Pjedsted Bjarke Pjedsted 4 4 silver badges 8 8 bronze badges. Two comments on this: 1 it should probably reject Error objects, not strings, 2 fs. This works great! No errors popped up but the. Removing the logic for the flag fixed it.
Just wanted to point that out if someone had the issues with the approach. Is there a memory leak in this answer: stackoverflow. You can add timeout like I did in http.
The memory leak is only if the file take too long to be downloaded. Based on the other answers above and some subtle issues, here is my attempt. Check the file does not exist before hitting the network by using fs. Only create the fs. This reduces the amount of fs. Even on a OK we can still possibly reject due to an EEXIST file already exists imagine another process created the file whilst we were doing network calls. Recursively call download if you get a Moved Permanently or Found Moved Temporarily redirect following the link location provided in the header.
The issue with some of the other answers recursively calling download was that they called resolve download instead of download
0コメント