Enum Error 

#[non_exhaustive]
pub enum Error {
    Api(Box<ApiError>),
    Transport(Error),
    NoCredentials,
    Credentials(String),
    Config(String),
    InvalidRequest(String),
    Decode(String),
    NotDone(String),
}

What a call, or waiting on an operation, failed with.

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.

Api(Box<ApiError>)

The API refused the call, or the operation failed: branch on ApiError::reason.

Transport(Error)

The call got no answer: the connection failed or broke off.

NoCredentials

Neither the environment nor a CLI session holds credentials, and no instance metadata service answered.

Credentials(String)

The credentials couldn’t supply an access token.

Config(String)

The client’s configuration is invalid.

InvalidRequest(String)

The request can’t be sent as it is, such as a name of the wrong form; it was not sent.

Decode(String)

The answer couldn’t be read.

NotDone(String)

Operation::result of an operation that isn’t done.

Implementations

impl Error

pub fn api(&self) -> Option<&ApiError>

The refusal, when the API refused the call or the operation failed.

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

The platform’s error code, such as NOT_FOUND, when the API refused the call with one.

pub fn is_retryable(&self) -> bool

Whether the API answered that the same call may succeed if it is sent again.

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<ApiError> for Error

fn from(e: ApiError) -> Self

Converts to this type from the input type.