How to parse json with changing structure?

Question

go

VK sends the following response

{"access_token_XXXXXX":"533bacf01e11f55b536a565b57531ac114461ae8736d6506a3", "expires_in":0}

How to get the access_token_XXXXXX field if XXXXXX is a group id that is constantly changing?

Answer 1

jsonSource := `{"access_token_XXXXXX":"533bacf01e11f55b536a565b57531ac114461ae8736d6506a3", "expires_in":0}`

var raw map[string]interface{}
err := json.Unmarshal([]byte(jsonSource), &raw)
if err != nil {
  log.Fatal(err)
}

for key, val := range raw {
  fmt.Printf("%s: %v\n", key, val)
}

https://play.golang.org/p/_GA06JaJqr8