curl - How do I accept POST requests from Go and write output to a file? -

first of all, i'm trying create logging service in go, lightweight server accepting post requests log data service. i'm writing service in go because supposed fast , handle lot of post requests @ once. logic sound there?

anyways, issue. i'm sending post requests test: curl -h "content-type: application/json" -x post -d '{"hello":"world"}' http://localhost:8080/log

and here go script far:

package main  import (    "fmt"    "log"    "net/http" )  func logger(w http.responsewriter, r *http.request) {    r.parseform()    fmt.println(r.form)    fmt.println(r.formvalue("hello")) }  func main() {    http.handlefunc("/log", logger)    log.fatal(http.listenandserve(":8080", nil)) } 

it outputting: map []

why that? how write post data file on server?

thank much! w

r.method contains type of received request (get, post, head, put, etc.).

you can read data r.body ioutil , write data file same package.

this handling post method, reading data , writing file (output.txt).

if r.method == "post" {     body, err := ioutil.readall(r.body)     if err != nil {         fmt.errorf("error during reading body: %v", err)     }      if err := ioutil.writefile("output.txt", body, 0644); err != nil {         fmt.errorf("error during writing data: %v", err)     } }