Move to std::futures to support async/await.

examples/test-installed/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 
 [dependencies]
 yup-oauth2 = { path = "../../" }
-hyper = "0.12"
-hyper-rustls = "0.17"
-futures = "0.1"
-tokio = "0.1"
+hyper = {version = "0.13.0-alpha.4", features = ["unstable-stream"]}
+hyper-rustls = "=0.18.0-alpha.2"
+futures-preview = "=0.3.0-alpha.19"
+tokio = "=0.2.0-alpha.6"

examples/test-installed/src/main.rs

@@ -1,24 +1,16 @@
-use futures::prelude::*;
 use yup_oauth2::GetToken;
 use yup_oauth2::{Authenticator, InstalledFlow};
 
-use hyper::client::Client;
-use hyper_rustls::HttpsConnector;
-
 use std::path::Path;
 
-fn main() {
-    let https = HttpsConnector::new(1);
-    let client = Client::builder()
-        .keep_alive(false)
-        .build::<_, hyper::Body>(https);
-    let ad = yup_oauth2::DefaultFlowDelegate;
+#[tokio::main]
+async fn main() {
     let secret = yup_oauth2::read_application_secret(Path::new("clientsecret.json"))
         .expect("clientsecret.json");
 
-    let mut auth = Authenticator::new(InstalledFlow::new(
+    let auth = Authenticator::new(InstalledFlow::new(
         secret,
-        yup_oauth2::InstalledFlowReturnMethod::HTTPRedirect(8081),
+        yup_oauth2::InstalledFlowReturnMethod::HTTPRedirectEphemeral,
     ))
     .persist_tokens_to_disk("tokencache.json")
     .build()
@@ -26,11 +18,8 @@ fn main() {
     let s = "https://www.googleapis.com/auth/drive.file".to_string();
     let scopes = vec![s];
 
-    let tok = auth.token(scopes);
-    let fut = tok.map_err(|e| println!("error: {:?}", e)).and_then(|t| {
-        println!("The token is {:?}", t);
-        Ok(())
-    });
-
-    tokio::run(fut)
+    match auth.token(scopes).await {
+        Err(e) => println!("error: {:?}", e),
+        Ok(t) => println!("The token is {:?}", t),
+    }
 }