[GH-ISSUE #1511] Failed to create Spirc instance: Error { kind: InvalidArgument, error: StatusCode(400) }

kerem commented

2026-02-27 19:31:56 +03:00

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Originally created by @thedtvn on GitHub (Jun 17, 2025).
Original GitHub issue: https://github.com/librespot-org/librespot/issues/1511

There are no docs orexamplese for this, soIi created this issue

use futures_util::StreamExt as _;
use librespot::{connect::{ConnectConfig, Spirc}, core::{Session, SessionConfig}, discovery::{Credentials, DeviceType, Discovery}, playback::{audio_backend, config::{AudioFormat, PlayerConfig}, mixer::{self, MixerConfig}, player::Player}};

const APP_NAME: &str = "Spotify Player";
const DEVICE_TYPE: DeviceType = DeviceType::Tv;

async fn discover_prosessing(session: Session, credentials: Credentials) {
    let player_config = PlayerConfig::default();
    let audio_format = AudioFormat::default();
    let mut connect_config = ConnectConfig::default();
    connect_config.name = APP_NAME.to_string();
    connect_config.device_type = DEVICE_TYPE;
    let mixer_config = MixerConfig::default();
    let sink_builder = audio_backend::find(None).unwrap();
    let mixer_builder = mixer::find(None).unwrap();
    let mixer = mixer_builder(mixer_config);
    let player = Player::new(
        player_config,
        session.clone(),
        mixer.get_soft_volume(),
        move || sink_builder(None, audio_format),
    );
    let (spirc, spirc_task) =
        Spirc::new(connect_config, session.clone(), credentials, player, mixer).await
        .expect("Failed to create Spirc instance");

    spirc.activate().expect("Failed to activate Spirc");
    spirc_task.await;
}


#[tokio::main]
async fn main() {
    env_logger::init();
    let session_config = SessionConfig::default();
    let mut discovery = Discovery::builder(&session_config.device_id, &session_config.client_id)
        .name(APP_NAME)
        .device_type(DEVICE_TYPE)
        .launch()
        .expect("Failed to create discovery instance");
    while let Some(cred) = discovery.next().await {
        let session_config = session_config.clone();
        tokio::spawn(async move {
            let session = Session::new(session_config, None);
            discover_prosessing(session, cred).await;
        });
        
    }

}

Here is my code I use lib ver 0.6.0-dev full direct from github

Originally created by @thedtvn on GitHub (Jun 17, 2025). Original GitHub issue: https://github.com/librespot-org/librespot/issues/1511 There are no docs orexamplese for this, soIi created this issue ```rs use futures_util::StreamExt as _; use librespot::{connect::{ConnectConfig, Spirc}, core::{Session, SessionConfig}, discovery::{Credentials, DeviceType, Discovery}, playback::{audio_backend, config::{AudioFormat, PlayerConfig}, mixer::{self, MixerConfig}, player::Player}}; const APP_NAME: &str = "Spotify Player"; const DEVICE_TYPE: DeviceType = DeviceType::Tv; async fn discover_prosessing(session: Session, credentials: Credentials) { let player_config = PlayerConfig::default(); let audio_format = AudioFormat::default(); let mut connect_config = ConnectConfig::default(); connect_config.name = APP_NAME.to_string(); connect_config.device_type = DEVICE_TYPE; let mixer_config = MixerConfig::default(); let sink_builder = audio_backend::find(None).unwrap(); let mixer_builder = mixer::find(None).unwrap(); let mixer = mixer_builder(mixer_config); let player = Player::new( player_config, session.clone(), mixer.get_soft_volume(), move || sink_builder(None, audio_format), ); let (spirc, spirc_task) = Spirc::new(connect_config, session.clone(), credentials, player, mixer).await .expect("Failed to create Spirc instance"); spirc.activate().expect("Failed to activate Spirc"); spirc_task.await; } #[tokio::main] async fn main() { env_logger::init(); let session_config = SessionConfig::default(); let mut discovery = Discovery::builder(&session_config.device_id, &session_config.client_id) .name(APP_NAME) .device_type(DEVICE_TYPE) .launch() .expect("Failed to create discovery instance"); while let Some(cred) = discovery.next().await { let session_config = session_config.clone(); tokio::spawn(async move { let session = Session::new(session_config, None); discover_prosessing(session, cred).await; }); } } ``` Here is my code I use lib ver 0.6.0-dev full direct from github

kerem closed this issue

2026-02-27 19:31:56 +03:00

kerem commented

2026-02-27 19:31:57 +03:00

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@photovoltex commented on GitHub (Jun 17, 2025):

all examples
spirc example
connect docs
- you should be able to get the full documentation where the connect module should have full coverage by running the following in root or the connect directory
```
cargo doc --open
```
taking a look at the main loop of the binary might also be helpful

I will take a look later at your provided example. Just a thing that seems off about you async code. You spawn a new thread, but don't await the handle, meaning the thread will not be executed (if I'm correct?). Couldn't you remove the tokio::spawn and just run the spirc task on the current thread? I might be wrong but maybe that all it is.

@photovoltex commented on GitHub (Jun 17, 2025): - [all examples](https://github.com/librespot-org/librespot/tree/dev/examples) - [spirc example](https://github.com/librespot-org/librespot/blob/dev/examples/play_connect.rs) - [connect docs](https://github.com/librespot-org/librespot/blob/dev/connect/README.md) - you should be able to get the full documentation where the connect module should have full coverage by running the following in root or the connect directory ``` cargo doc --open ``` - taking a look at the [main loop of the binary](https://github.com/librespot-org/librespot/blob/dev/src/main.rs#L1970) might also be helpful I will take a look later at your provided example. Just a thing that seems off about you async code. You spawn a new thread, but don't await the handle, meaning the thread will not be executed (if I'm correct?). Couldn't you remove the `tokio::spawn` and just run the spirc task on the current thread? I might be wrong but maybe that all it is.

kerem commented

2026-02-27 19:31:57 +03:00

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Owner

@thedtvn commented on GitHub (Jun 17, 2025):

all examples

spirc example
connect docs

you should be able to get the full documentation where the connect module should have full coverage by running the following in root or the connect directory
cargo doc --open
taking a look at the main loop of the binary might also be helpful
I will take a look later at your provided example. Just a thing that seems off about you async code. You spawn a new thread, but don't await the handle, meaning the thread will not be executed (if I'm correct?). Couldn't you remove the tokio::spawn and just run the spirc task on the current thread? I might be wrong but maybe that all it is.

thanks

@thedtvn commented on GitHub (Jun 17, 2025): > * [all examples](https://github.com/librespot-org/librespot/tree/dev/examples) > * [spirc example](https://github.com/librespot-org/librespot/blob/dev/examples/play_connect.rs) > * [connect docs](https://github.com/librespot-org/librespot/blob/dev/connect/README.md) > > * you should be able to get the full documentation where the connect module should have full coverage by running the following in root or the connect directory > > ``` > cargo doc --open > ``` > * taking a look at the [main loop of the binary](https://github.com/librespot-org/librespot/blob/dev/src/main.rs#L1970) might also be helpful > > I will take a look later at your provided example. Just a thing that seems off about you async code. You spawn a new thread, but don't await the handle, meaning the thread will not be executed (if I'm correct?). Couldn't you remove the `tokio::spawn` and just run the spirc task on the current thread? I might be wrong but maybe that all it is. thanks

kerem commented

2026-02-27 19:31:57 +03:00

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@thedtvn commented on GitHub (Jun 17, 2025):

@photovoltex , can I ask what I do wrong that makes it send a 400 error (I try to connect using Spotify client connect to this app )

@thedtvn commented on GitHub (Jun 17, 2025): @photovoltex , can I ask what I do wrong that makes it send a 400 error (I try to connect using Spotify client connect to this app )

kerem commented

2026-02-27 19:31:57 +03:00

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@photovoltex commented on GitHub (Jun 17, 2025):

I tried your provided code and connect to the connect device via the desktop player, which seemed to work. Please provide a log with your error, otherwise we can't help you with your problem.

@photovoltex commented on GitHub (Jun 17, 2025): I tried your provided code and connect to the connect device via the desktop player, which seemed to work. Please provide a log with your error, otherwise we can't help you with your problem.

kerem commented

2026-02-27 19:31:57 +03:00

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@thedtvn commented on GitHub (Jun 17, 2025):

i fixed that thanks for sory about wasted your times

@thedtvn commented on GitHub (Jun 17, 2025): i fixed that thanks for sory about wasted your times

kerem referenced this issue

2026-02-27 20:00:50 +03:00

[PR #682] [CLOSED] Channel balance correction. #1018

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[GH-ISSUE #1511] Failed to create Spirc instance: Error { kind: InvalidArgument, error: StatusCode(400) } #682