Enum StreamError 

pub enum StreamError {
    Http(String),
    ConnectFailed(String),
    Json(Error),
    InvalidSse(String),
    ModelProvider(String),
    HttpStatus {
        status: u16,
        message: String,
    },
    ModelRefusal(Box<ModelRefusalError>),
    Terminal(Box<dyn Error + Send + Sync>),
    Io(Error),
}

Errors that can occur during streaming.

Variants

Http(String)

ConnectFailed(String)

The connection for the failing request hop could not be opened (connect, TLS handshake or DNS), as reported by the transport at the send site. For a request that followed no redirect, nothing was delivered. A redirect-following client may already have delivered an earlier hop; callers that must not re-send delivered work cannot rely on this variant alone.

The display text matches StreamError::Http so logs, diagnostics and user-facing messages are unchanged.

Json(Error)

InvalidSse(String)

ModelProvider(String)

HttpStatus

A provider returned a non-success HTTP response before streaming began.

Fields

status: u16

message: String

ModelRefusal(Box<ModelRefusalError>)

Terminal(Box<dyn Error + Send + Sync>)

The provider already exhausted its own retry/fallback budget producing this error; consumers must not retry or fall back. Produced only when a completed non-streaming call is synthesized into a stream (the wrapped failure already survived the full ladder). A genuine streaming leg never emits it, so fallback recovery for streamed failures is unaffected. The payload is the completed call’s failure; consumers walk its chain for the typed terminal cause beneath it.

Io(Error)

Trait Implementations

impl Debug for StreamError

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Display for StreamError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl Error for StreamError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<Box<ModelRefusalError>> for StreamError

fn from(source: Box<ModelRefusalError>) -> StreamError

Converts to this type from the input type.

impl From<Error> for StreamError

fn from(source: Error) -> StreamError

Converts to this type from the input type.