Copy and Movement 7

ioPipeHttpServer.go

package main

import (
    "io"
    "net/http"
    "os"
)

func main() {
    http.HandleFunc("/download", func(w http.ResponseWriter, r *http.Request) {
        filePath := "largeFile.txt"

        file, err := os.Open(filePath)
        if err != nil {
            http.Error(w, "File not found", http.StatusNotFound)
            return
        }
        defer file.Close()

        // Stream the file content to the client
        // Set headers
        w.Header().Set("Content-Disposition", "attachment; filename="+filePath)
        w.Header().Set("Content-Type", "application/octet-stream")
        // Copy the file to the HTTP response
        _, err = io.Copy(w, file)
        if err != nil {
            http.Error(w, "Error streaming file", http.StatusInternalServerError)
        }
    })

    println("Server listening on port 8080...")
    if err := http.ListenAndServe(":8080", nil); err != nil {
        panic(err)
    }
}