Nodejs manage file download

I like to work with Promises because I can use Async and Await on them which makes my code more clean and working as I need it to. I am easily doing this by attaching a resolve and reject on the actual events that are coming from the request library.

It is pretty straight forward and the logic would be that the promise will resolve itself once the finish callback is fired and we are rejecting when it fires an error callback. What is GZIP? Using stream we can download file in node. We just need to set headers. Browser will automatically download the file. If this header will present in response then browser will force fully download the file. We can also specify the file name in this header.

Another header is Content-Type , this contains the type of content or file type. Now run server. Your file will be download. In Express. Here [] indicates the optional parameter. First parameter is. We can use both relative as well as absolute path. Log in Sign up. Install Node. Goal Install and manage a local installation of node using nvm. Prerequisites Overview: Manage Node. Download the install script Using curl, or wget, download the installation script.

Run the install script Run the install script with bash. Verify it worked Finally, you can verify that it's installed with the command command: command -v nvm Should return nvm. See what it does Finally, run the nvm command to get a list of all the available sub-commands and to further verify that installation worked. List available versions To see the entire list of Node. Install a specific version Install a specific version: nvm install 8.

List installed versions You can see which versions of Node. This also doesnt require page. The problem is that the browser closes before download finished. I just didn't like to load file contents into buffer. Andrey Shorin Andrey Shorin 41 1 1 bronze badge. This worked for me - thanks! Whatever it is about my bank, I couldn't get any of the other approaches to work.

No matter how I attempted to intercept the request or make a separate request with the same headers etc, the backend seemed to somehow identify that it hadn't come from their frontend and returned an error page. This works though. In this case, I'm streaming the file through, but you could just as easily save it.

David Buck 3, 32 32 gold badges 27 27 silver badges 34 34 bronze badges. Evgen Evgen 1. This doesn't wait for the download to get fully completed. How to wait? Works in both headless either False or True Using this any kind of webpage can be downloaded. Dharman Utsav Talwar Utsav Talwar 60 7 7 bronze badges. Headers["Content-Type"]; if contentType.

Add new Cookie cookie. Name, cookie. Value, cookie. Path, cookie. Cryptc Cryptc 1, 1 1 gold badge 11 11 silver badges 14 14 bronze badges. I have another solution to this problem, since none of the answers here worked for me.