zet

Writing a Large File Web with Go Safely

No ReadAll is not the answer if you don’t want to blow up your memory. Use the io.Copy() approach instead.

import (
  "net/http"
  "io"
  "os"
)
// ...
out, err := os.Create("output.txt")
defer out.Close()
// ...
resp, err := http.Get("http://example.com/")
defer resp.Body.Close()
// ...
n, err := io.Copy(out, resp.Body)

#golang #tips #http

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