Gofileiod -

Gofile.io is a file hosting service that allows users to upload and share files without requiring an account or registration. It is widely used for transferring large files that might be too big for email or standard messaging apps.

f, err := os.OpenFile("log.txt", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
f.WriteString("new log line\n")

Typically 10 days after the last download. Files with frequent downloads can last up to 30 days. gofileiod

Pro tip: Add ?download=1 to the end of the share link to force automatic download. Gofile

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// Full read into []byte
data, err := os.ReadFile("data.txt")

func copyFile(src, dst string) error 
    source, err := os.Open(src)
    if err != nil 
        return err
defer source.Close()
destination, err := os.Create(dst)
if err != nil 
    return err
defer destination.Close()
_, err = io.Copy(destination, source)
return err

This code is just a few lines but demonstrates powerful, efficient copying without loading the whole file into RAM. Typically 10 days after the last download

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Yes, via standard HTTP range requests.