identity_iota::storage::key_id_storage

Enum KeyIdStorageErrorKind

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#[non_exhaustive]
pub enum KeyIdStorageErrorKind {
    KeyIdNotFound,
    KeyIdAlreadyExists,
    Unavailable,
    Unauthenticated,
    RetryableIOFailure,
    SerializationError,
    Unspecified,
}
Expand description

The cause of the failed key id storage operation.

Variants (Non-exhaustive)§

This enum is marked as 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.
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KeyIdNotFound

Indicates that the key id storage implementation is not able to find the requested key id.

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KeyIdAlreadyExists

Indicates that the key id already exists in the storage.

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Unavailable

Indicates that the storage is unavailable for an unpredictable amount of time.

Occurrences of this variant should hopefully be rare, but could occur if hardware fails, or a hosted key store goes offline.

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Unauthenticated

Indicates that an attempt was made to authenticate with the key storage, but the operation did not succeed.

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RetryableIOFailure

Indicates an unsuccessful I/O operation that may be retried, such as a temporary connection failure or timeouts.

Returning this error signals to the caller that the operation may be retried with a chance of success. It is at the caller’s discretion whether to retry or not, and how often.

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SerializationError

Indicates a failure to serialize or deserialize.

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Unspecified

Indicates that something went wrong, but it is unclear whether the reason matches any of the other variants.

When using this variant one may want to attach additional context to the corresponding KeyIdStorageError. See KeyIdStorageError::with_custom_message and KeyIdStorageError::with_source.

Implementations§

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impl KeyIdStorageErrorKind

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pub const fn as_str(&self) -> &str

Returns the string representation of the error.

Trait Implementations§

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impl AsRef<str> for KeyIdStorageErrorKind

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fn as_ref(&self) -> &str

Converts this type into a shared reference of the (usually inferred) input type.
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impl Clone for KeyIdStorageErrorKind

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fn clone(&self) -> KeyIdStorageErrorKind

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for KeyIdStorageErrorKind

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

Formats the value using the given formatter. Read more
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impl Display for KeyIdStorageErrorKind

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

Formats the value using the given formatter. Read more

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