Updated token example

Author: kingosticks

examples/get_token.rs

@@ -1,6 +1,7 @@
 use std::env;
 
 use librespot::core::{authentication::Credentials, config::SessionConfig, session::Session};
+use librespot::protocol::authentication::AuthenticationType;
 
 const SCOPES: &str =
     "streaming,user-read-playback-state,user-modify-playback-state,user-read-currently-playing";
@@ -10,36 +11,43 @@ async fn main() {
     let mut session_config = SessionConfig::default();
 
     let args: Vec<_> = env::args().collect();
-    if args.len() == 4 {
-        session_config.client_id = args[3].clone()
-    } else if args.len() != 3 {
-        eprintln!("Usage: {} USERNAME PASSWORD [CLIENT_ID]", args[0]);
+    if args.len() == 3 {
+        session_config.client_id = args[2].clone()
+    } else if args.len() != 2 {
+        eprintln!("Usage: {} ACCESS_TOKEN [CLIENT_ID]", args[0]);
         return;
     }
-    let username = &args[1];
-    let password = &args[2];
+    let access_token = &args[1];
 
+    // Now create a new session with that token.
     let session = Session::new(session_config.clone(), None);
-    let credentials = Credentials::with_password(username, password);
-    println!("Connecting with password..");
-    let token = match session.connect(credentials, false).await {
-        Ok(()) => {
-            println!("Session username: {:#?}", session.username());
-            session.token_provider().get_token(SCOPES).await.unwrap()
+    let credentials = Credentials::with_access_token(access_token);
+    println!("Connecting with token..");
+    match session.connect(credentials, false).await {
+        Ok(()) => println!("Session username: {:#?}", session.username()),
+        Err(e) => {
+            println!("Error connecting: {e}");
+            return;
         }
+    };
+
+    // This will fail. You can't use keymaster from an access token authed session.
+    // let token = session2.token_provider().get_token(SCOPES).await.unwrap();
+
+    // Instead, derive stored credentials and auth a new session using those.
+    let stored_credentials = Credentials {
+        username: Some(session.username()),
+        auth_type: AuthenticationType::AUTHENTICATION_STORED_SPOTIFY_CREDENTIALS,
+        auth_data: session.auth_data(),
+    };
+    let session2 = Session::new(session_config, None);
+    match session2.connect(stored_credentials, false).await {
+        Ok(()) => println!("Session username: {:#?}", session2.username()),
         Err(e) => {
             println!("Error connecting: {}", e);
             return;
         }
     };
-    println!("Token: {:#?}", token);
-
-    // Now create a new session with that token.
-    let session = Session::new(session_config, None);
-    let credentials = Credentials::with_access_token(token.access_token);
-    println!("Connecting with token..");
-    match session.connect(credentials, false).await {
-        Ok(()) => println!("Session username: {:#?}", session.username()),
-        Err(e) => println!("Error connecting: {}", e),
-    }
+    let token = session2.token_provider().get_token(SCOPES).await.unwrap();
+    println!("Got me a token: {token:#?}");
 }