DioxusLabs/dioxus · error · WebsocketError

Failed to deserialize message

Error message

Failed to deserialize message

What it means

Constructs the Deserialization variant of WebsocketError: an incoming websocket message body could not be decoded by the Encoding's from_bytes (client side). Used where deserialization of a received frame fails; the raw frame was received but its payload does not match the expected In type.

Source

Thrown at packages/fullstack/src/payloads/websocket.rs:934

                code: close_event.code.into(),
                description: close_event.reason,
            },
            WebSocketError::MessageSendError(_js_error) => WebsocketError::Unexpected,
            _ => WebsocketError::Unexpected,
        }
    }
}

impl WebsocketError {
    pub fn closed_away() -> Self {
        Self::ConnectionClosed {
            code: CloseCode::Normal,
            description: "Connection closed normally".into(),
        }
    }

    pub fn deserialization() -> Self {
        Self::Deserialization(anyhow::anyhow!("Failed to deserialize message").into())
    }

    pub fn serialization() -> Self {
        Self::Serialization(anyhow::anyhow!("Failed to serialize message").into())
    }
}

#[cfg(feature = "web")]
struct WebsysSocket {
    sender: Mutex<SplitSink<WsWebsocket, WsMessage>>,
    receiver: Mutex<SplitStream<WsWebsocket>>,
}

/// A `WebSocket` message, which can be a text string or binary data.
#[derive(Clone, Debug)]
pub enum Message {
    /// A text `WebSocket` message.
    // note: we can't use `tungstenite::Utf8String` here, since we don't have tungstenite on wasm.

View on GitHub (pinned to 24f6a829df)

Solutions

1. The websocket message could not be deserialized. Match the client and server message types and versions.

When it happens

Trigger: Thrown at packages/fullstack/src/payloads/websocket.rs:934 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of DioxusLabs/dioxus@24f6a829df (2026-08-23). Data as JSON: /api/errors/1e26783477b5d619. Report an issue: GitHub.