Enum ProxyError 

pub enum ProxyError {
    Upstream {
        source: String,
        inner: Option<Error>,
    },
    ProtocolConversion(String),
    ChannelSelection {
        model: String,
    },
    Compression(String),
    BadRequest(String),
    Unauthorized,
    RateLimited {
        retry_after: Duration,
    },
    CircuitOpen {
        channel: String,
    },
    Internal(Error),
}

Top-level error for the proxy.

Maps to HTTP responses with appropriate status codes and JSON bodies. Internal details are never leaked to clients — use tracing for server-side logging.

Variants

Upstream

Upstream returned an error or was unreachable.

Fields

source: String

Human-readable description of the upstream error.

inner: Option<Error>

Optional chained error for server-side diagnostics.

ProtocolConversion(String)

Protocol conversion between AI API formats failed.

ChannelSelection

No channel could be selected for the requested model.

Fields

model: String

The client-requested model name.

Compression(String)

Token compression failed (non-fatal — falls back to passthrough).

BadRequest(String)

Client sent a malformed request.

Unauthorized

Proxy-level auth failed.

RateLimited

Rate limit exceeded.

Fields

retry_after: Duration

Suggested retry delay.

CircuitOpen

Circuit breaker is open — channel is unavailable.

Fields

channel: String

The channel that is currently open.

Internal(Error)

Internal error (DB, config, unexpected).

Implementations

impl ProxyError

pub fn to_response(&self) -> Response

Converts this error into an HTTP response.

Maps each variant to the appropriate status code and sanitized JSON body. Internal details are stripped from the client-facing response.

pub fn status_code(&self) -> StatusCode

Returns the HTTP status code for this error.

pub fn error_code(&self) -> &'static str

Returns the machine-readable error code.

Trait Implementations

impl Debug for ProxyError

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

Formats the value using the given formatter.

impl Display for ProxyError

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

Formats the value using the given formatter.

impl Error for ProxyError

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<Error> for ProxyError

fn from(source: Error) -> Self

Converts to this type from the input type.

impl IntoResponse for ProxyError

fn into_response(self) -> Response

Create a response.