Download file with golang

This can be files, images, etc. And arguably, due to its superior handling of Linux pipes, curl can be more easily integrated with other commands and scripts.

For tar and zip files, I find it more useful to simply use the wget command, especially since I can pair it with the tar -xzvf commands. However, there is more community involvement going on at present to develop a more robust, concurrent download package. Skip to content. Parse fullURLFile if err! Create fileName if err! Ryan Armstrong Ryan Armstrong 1 1 silver badge 3 3 bronze badges.

Could you add a code snippet to ensure that the information will not be lost if the link gets deprecated? Get uri if err! ReadAll res. WriteFile dst, d, if err! TeeTracker TeeTracker 6, 6 6 gold badges 36 36 silver badges 43 43 bronze badges.

This example reads the entire contents into memory, with the ioutil. That's fine, as long as you are dealing with tiny files. Exactly right, that's why I commented so - for others to know as well not to use this for large files. This is not a benign answer, and should actually be removed. The use of ReadAll among a large pile of code is a latent problem waiting until a large file is used. What happens is that if there are ReadAll on large files, the usually response is to go along with the high memory consumption and increased AWS bills until something fails.

By the time the problem is discovered, the bills are already high. So what's the alternative? Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. To format filename properly in the header you should use mime. For outputing the content of a. ServeContent or http. 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 file in browser from Go server Ask Question. Asked 7 years, 5 months ago. Active 1 year, 2 months ago. Viewed 48k times. My code get file from remote url and download file in browser: func Index w http. Get url if err! ReadAll resp.

Body if err! ListenAndServe "", nil if err! Flimzy Base resp. String and import the path package. Edd is the Lead Developer at Hoowla, a prop-tech startup, where he spends much of his time working on production-ready Go and PHP code.

He loves coding, but also enjoys cycling and camping in his spare time. See something which isn't right?