CrossmintException

Class Base class for every exception the Crossmint SDK throws.

class CrossmintException implements Exception

Every subclass carries a code (CrossmintErrorCode) so consumer code can switch on error categories instead of string-matching on message. The optional cause preserves the original error / payload that triggered this exception — useful for logging and programmatic handling.

Constructors

const CrossmintException(
  this.message, {
  this.code = CrossmintErrorCode.unknown,
  this.cause,
})

Creates a generic CrossmintException. Prefer throwing a subclass scoped to the failure domain (auth / wallet / signer / …).

Properties

message

final String message

Human-readable message suitable for logs. Not localized — do not show this directly to end users.

code

final CrossmintErrorCode code

A machine-readable error code for programmatic switch/case handling.

cause

final Object? cause

The underlying cause — typically a lower-level exception or an API response payload. Inspect this for extra detail when diagnosing errors.

Methods

toString

String toString()

CrossmintEvmWallet CrossmintExportPrivateKeyButton

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​Constructors