Struct Error 

pub struct Error { /* private fields */ }

The error type for Hyper client operations.

Implementations

impl Error

pub fn new(kind: ErrorKind, message: impl Into<String>) -> Self

Creates a new error with the given kind and message.

pub fn with_cause<E>( kind: ErrorKind, message: impl Into<String>, cause: E, ) -> Self

where E: Into<Box<dyn StdError + Send + Sync>>,

Creates a new error with a cause.

pub fn new_with_details( kind: ErrorKind, message: impl Into<String>, detail: Option<String>, hint: Option<String>, sqlstate: Option<String>, ) -> Self

Creates a new error with additional details (SQLSTATE, detail, hint).

This is primarily used for gRPC errors that carry structured error information.

pub fn kind(&self) -> ErrorKind

Returns the error kind.

pub fn message(&self) -> &str

Returns the error message.

pub fn detail(&self) -> Option<&str>

Returns the error detail, if available.

pub fn hint(&self) -> Option<&str>

Returns the error hint, if available.

pub fn connection(message: impl Into<String>) -> Self

Creates a connection error.

pub fn authentication(message: impl Into<String>) -> Self

Creates an authentication error.

pub fn query(message: impl Into<String>) -> Self

Creates a query error.

pub fn protocol(message: impl Into<String>) -> Self

Creates a protocol error.

pub fn closed() -> Self

Creates a closed connection error.

pub fn timeout() -> Self

Creates a timeout error.

pub fn io(err: Error) -> Self

Creates an error from an I/O error.

pub fn db(severity: &str, code: &str, message: &str) -> Self

Creates an error from a database error response.

pub fn feature_not_supported(message: impl Into<String>) -> Self

Creates a “feature not supported” error.

Used when an operation is not available on a particular connection type (e.g., write operations on gRPC connections).

pub fn other(message: impl Into<String>) -> Self

Creates a generic “other” error.

pub fn sqlstate(&self) -> Option<&str>

Extracts the PostgreSQL SQLSTATE code from the error, if present.

SQLSTATE codes are 5-character codes that identify error conditions. See: https://www.postgresql.org/docs/current/errcodes-appendix.html

Example

use hyperdb_api_core::client::{Error, ErrorKind};

let err = Error::db("ERROR", "42P04", "database already exists");
assert_eq!(err.sqlstate(), Some("42P04"));

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

fn from(err: Error) -> Self

Converts to this type from the input type.