Enum H2Error 

pub enum H2Error {
    FrameError,
    ProtocolError(String),
    CompressionError,
    FlowControlError,
    FrameSizeError,
    ConnectionError(ErrorCode),
    StreamError(u32, ErrorCode),
    MessageError(String),
    MaxSizeExceeded(String),
    Internal(String),
}

Errors produced by the HTTP/2 framing layer.

Variants

FrameError

Frame decoding error (truncated, invalid payload, etc.).

ProtocolError(String)

Received a frame that violates the protocol.

CompressionError

HPACK header compression/decompression error.

FlowControlError

Flow control violation.

FrameSizeError

Frame size exceeds the maximum allowed.

ConnectionError(ErrorCode)

Connection-level error with an error code.

StreamError(u32, ErrorCode)

Stream-level error with an error code.

MessageError(String)

HTTP message semantic error (malformed pseudo-headers, forbidden connection-specific headers, uppercase header names, etc. — RFC 9113 §8.1, §8.2).

MaxSizeExceeded(String)

A resource cap configured by Settings (max_header_list_size, max_recv_buf, etc.) or by the H2 implementation’s hard ceilings (HPACK literal count, dynamic table size) was exceeded.

Internal(String)

Internal error with a description.

Implementations

impl H2Error

pub fn code(&self) -> ErrorCode

The connection-level error code that this error should be reported as in a GOAWAY frame (RFC 7540 §7).

Trait Implementations

impl Debug for H2Error

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

Formats the value using the given formatter.

impl Display for H2Error

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

Formats the value using the given formatter.

impl Error for H2Error

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.