18. 初回に実行をすると、認証を求められます
> query_exec(samp_sql , project = prj)
Use a local file ('.httr-oauth'), to cache OAuth
access credentials between R sessions?
1: Yes
2: No
Selection: Yes
19. 以下のURLをブラウザに入力
Adding .httr-oauth to .gitignore
httpuv not installed, defaulting to out-of-band
authentication
Please point your browser to the following url:
https://accounts.google.com/o/oauth2/auth?clien
t_id=*************************