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userinfo.go
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userinfo.go
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// Package goiguserid returns id of Instagram user given the user name.
package goiguserid
// Get Instagram user information, such as id and biography, via username.
// See ``Instagram API -Get the userId - Stack Overflow``
// https://stackoverflow.com/a/44773079
import (
"encoding/json"
"net/http"
"strings"
)
// no need to login or cookie to access this URL
const UrlUserInfo = `https://www.instagram.com/{{USERNAME}}/?__a=1`
// used to decode the JSON data
type RawUserResp struct {
User UserInfo
}
// You can add more fields in the struct to get more information
// See response/types.go in github.com/ahmdrz/goinsta
type UserInfo struct {
Id string `json:"id"`
Biography string `json:"biography"`
}
// Given user name, return information of the user name.
// Currently only id and biography is returned.
func GetUserInfo(username string) (ui UserInfo, err error) {
url := strings.Replace(UrlUserInfo, "{{USERNAME}}", username, 1)
resp, err := http.Get(url)
if err != nil {
return
}
defer resp.Body.Close()
dec := json.NewDecoder(resp.Body)
r := RawUserResp{}
if err = dec.Decode(&r); err != nil {
return
}
ui = r.User
return
}
// Given user name, return id of the user name.
func GetUserId(username string) (id string, err error) {
ui, err := GetUserInfo(username)
if err != nil {
return
}
id = ui.Id
return
}