How to unmarshal an escaped JSON string

Question

I am using Sockjs with Go, but when the JavaScript client send json to the server it escapes it, and send's it as a []byte. I'm trying to figure out how to parse the json, so that i can read the data. but I get this error.

json: cannot unmarshal string into Go value of type main.Msg

How can I fix this? html.UnescapeString() has no effect.

val, err := session.ReadMessage() if err != nil { break } var msg Msg  err = json.Unmarshal(val, &msg)  fmt.Printf("%v", val) fmt.Printf("%v", err)  type Msg struct {     Channel string     Name    string     Msg     string } 

//Output "{\"channel\":\"buu\",\"name\":\"john\", \"msg\":\"doe\"}" json: cannot unmarshal string into Go value of type main.Msg 

Answer 1

You might want to use strconv.Unquote on your JSON string first :)

Here's an example, kindly provided by @gregghz:

package main  import (     "encoding/json"     "fmt"     "strconv" )  type Msg struct {     Channel string     Name string     Msg string }  func main() {     var msg Msg     var val []byte = []byte(`"{\"channel\":\"buu\",\"name\":\"john\", \"msg\":\"doe\"}"`)      s, _ := strconv.Unquote(string(val))      err := json.Unmarshal([]byte(s), &msg)      fmt.Println(s)     fmt.Println(err)     fmt.Println(msg.Channel, msg.Name, msg.Msg) }