golang upload client and server
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// curl -X POST -H "Content-Type: application/octet-stream" --data-binary '@filename' http://127.0.0.1:5050/upload | |
package main | |
import ( | |
"fmt" | |
"io" | |
"net/http" | |
"os" | |
"time" | |
"io/ioutil" | |
) | |
func uploadHandler(w http.ResponseWriter, r *http.Request) { | |
file, err := os.Create("./result") | |
if err != nil { | |
panic(err) | |
} | |
n, err := io.Copy(file, r.Body) | |
if err != nil { | |
panic(err) | |
} | |
w.Write([]byte(fmt.Sprintf("%d bytes are recieved.\n", n))) | |
} | |
func main() { | |
http.HandleFunc("/upload", uploadHandler) | |
go func() { | |
time.Sleep(time.Second * 1) | |
upload() | |
}() | |
http.ListenAndServe(":5050", nil) | |
} | |
func upload() { | |
file, err := os.Open("./filename") | |
if err != nil { | |
panic(err) | |
} | |
defer file.Close() | |
res, err := http.Post("http://127.0.0.1:5050/upload", "binary/octet-stream", file) | |
if err != nil { | |
panic(err) | |
} | |
defer res.Body.Close() | |
message, _ := ioutil.ReadAll(res.Body) | |
fmt.Printf(string(message)) | |
} |
Thank you for this it helped me in writing my go file upload handler
I'm gonna to try it.
@ebraminio, this code works well. Good job!
Quick question:
what are you doing with the anonymous go routine at line# 30 - 33 & the func upload()
? Are they necessary?
Program works even if I commented them. Shall we safely ignore them?
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https://gist.github.com/ebraminio/576fdfdff425bf3335b51a191a65dbdb#file-upload-go-L15
file
ไม่ได้ Close นะครับ