use twitter_v2::TwitterApi;
use twitter_v2::authorization::{Oauth2Token, BearerToken};
use twitter_v2::query::{TweetField, UserField};

let auth = BearerToken::new(std::env::var("APP_BEARER_TOKEN").unwrap());
let tweet = TwitterApi::new(auth)
    .get_tweet(1261326399320715264)
    .tweet_fields([TweetField::AuthorId, TweetField::CreatedAt])
    .send()
    .await?
    .into_data()
    .expect("this tweet should exist");
assert_eq!(tweet.id, 1261326399320715264);
assert_eq!(tweet.author_id.unwrap(), 2244994945);
assert_eq!(tweet.created_at.unwrap(), datetime!(2020-05-15 16:03:42 UTC));

let auth: Oauth2Token = serde_json::from_str(&stored_oauth2_token)?;
let my_followers = TwitterApi::new(auth)
    .with_user_ctx()
    .await?
    .get_my_followers()
    .user_fields([UserField::Username])
    .max_results(20)
    .send()
    .await?
    .into_data();