Enum EnvError 

pub enum EnvError {
    Missing {
        key: String,
    },
    Empty {
        key: String,
    },
    Invalid {
        key: String,
        expected: &'static str,
        value: String,
    },
    NotUnicode {
        key: String,
    },
}

Why an environment variable could not be used.

Variants

Missing

The variable is not set at all.

Fields

key: String

The variable’s name.

Empty

The variable is set, but its value is blank once trimmed.

Fields

key: String

The variable’s name.

Invalid

The variable is set to something that is not valid for its type.

Fields

key: String

The variable’s name.

expected: &'static str

What the value should have been, for the error message.

value: String

What it actually was.

NotUnicode

The variable’s value is not valid Unicode.

Fields

key: String

The variable’s name.

Trait Implementations

impl Debug for EnvError

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

Formats the value using the given formatter.

impl Display for EnvError

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

Formats the value using the given formatter.

impl Error for EnvError

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<EnvError> for ObservabilityError

fn from(source: EnvError) -> Self

Converts to this type from the input type.

impl From<EnvError> for WebServerError

fn from(source: EnvError) -> Self

Converts to this type from the input type.