Enum Error 

#[non_exhaustive]
pub enum Error {
    InvalidBaseUrl(String),
    MissingEnvVar(&'static str),
    Rpc(ConnectError),
}

An error from constructing or calling the Headwaters read API.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

InvalidBaseUrl(String)

The configured base URL could not be parsed.

MissingEnvVar(&'static str)

A required environment variable was not set (see from_env).

Rpc(ConnectError)

The RPC failed — a transport error, or a non-OK status from the server.

Implementations

impl Error

pub fn code(&self) -> Option<ErrorCode>

The Connect status code, when this is an Error::Rpc carrying one.

Lets callers branch on the failure kind — e.g. distinguish a missing entity (is_not_found) from a transport failure.

pub fn is_not_found(&self) -> bool

True when the failure is a not_found status — the requested job, dataset, or run does not exist.

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, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

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<ConnectError> for Error

fn from(source: ConnectError) -> Self

Converts to this type from the input type.