Enum NifiError 

#[non_exhaustive]
pub enum NifiError {
    Http {
        source: Error,
    },
    InvalidBaseUrl {
        source: ParseError,
    },
    Auth {
        message: String,
    },
    InvalidCertificate {
        source: Error,
    },
    Unauthorized {
        message: String,
    },
    Forbidden {
        message: String,
    },
    NotFound {
        message: String,
    },
    Conflict {
        message: String,
    },
    Api {
        status: u16,
        message: String,
    },
    UnsupportedVersion {
        detected: String,
    },
    UnsupportedEndpoint {
        endpoint: String,
        version: String,
    },
    UnsupportedEnumVariant {
        variant: String,
        type_name: String,
        version: String,
    },
    MissingRequiredField {
        field: String,
        type_name: String,
        version: String,
    },
}

All errors that can be returned by the NiFi client.

Variants are #[non_exhaustive] — new variants may be added in future releases.

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.

Http

An underlying HTTP transport error from reqwest.

Fields

source: Error

The underlying reqwest error.

InvalidBaseUrl

The base URL provided to NifiClientBuilder could not be parsed.

Fields

source: ParseError

The underlying URL parse error.

Auth

Authentication against the NiFi /access/token endpoint failed.

Fields

message: String

A description of why authentication failed.

InvalidCertificate

A custom CA certificate or client certificate could not be loaded.

Fields

source: Error

The underlying reqwest error.

Unauthorized

The NiFi server returned HTTP 401 — credentials are missing or expired.

Fields

message: String

The error message returned by NiFi.

Forbidden

The NiFi server returned HTTP 403 — the authenticated user lacks permission.

Fields

message: String

The error message returned by NiFi.

NotFound

The NiFi server returned HTTP 404 — the requested resource does not exist.

Fields

message: String

The error message returned by NiFi.

Conflict

The NiFi server returned HTTP 409 — the request conflicts with current state.

Fields

message: String

The error message returned by NiFi.

Api

The NiFi server returned an unexpected non-2xx HTTP status code.

Fields

status: u16

The HTTP status code.

message: String

The error message returned by NiFi.

UnsupportedVersion

The detected NiFi version is not compiled into this client build.

Enable the matching nifi-x-y-z feature flag or use the dynamic feature.

Fields

detected: String

The version string returned by the NiFi server.

UnsupportedEndpoint

The requested endpoint does not exist in the active NiFi version.

Occurs in dynamic mode when the server version predates a given endpoint.

Fields

endpoint: String

The path of the unsupported endpoint.

version: String

The NiFi version that lacks the endpoint.

UnsupportedEnumVariant

A response enum field contained a variant not known to this client build.

Fields

variant: String

The raw wire value of the unrecognised variant.

type_name: String

The Rust type name of the enum.

version: String

The NiFi version that produced the variant.

MissingRequiredField

A required field was absent when converting a dynamic response to a typed struct.

Fields

field: String

The name of the missing field.

type_name: String

The Rust type that expected the field.

version: String

The NiFi version involved.

Implementations

impl NifiError

pub fn status_code(&self) -> Option<u16>

Returns the HTTP status code if this is an API error variant.

pub fn is_retryable(&self) -> bool

True if this error is likely transient and worth retrying.

Trait Implementations

impl Debug for NifiError

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

Formats the value using the given formatter.

impl Display for NifiError

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

Formats the value using the given formatter.

impl Error for NifiError

where Self: Debug + Display,

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 ErrorCompat for NifiError

fn backtrace(&self) -> Option<&Backtrace>

Returns a Backtrace that may be printed.

fn iter_chain(&self) -> ChainCompat<'_, '_>

where Self: AsErrorSource,

Returns an iterator for traversing the chain of errors, starting with the current error and continuing with recursive calls to Error::source.