index/functions/assertUniqueKey.md

assertUniqueKey(uniqueKey): void

Validates a caller-supplied write uniqueKey: 1 to 128 characters of A-Za-z0-9._:-, the shape the apply-results route accepts, so the write's outcome can always be read back with confirm(). A key is one attempt's identity: reuse it only to retry that same attempt.

Parameters

Parameter	Type
uniqueKey	string

Returns

void

Throws

GalaSDKError INVALID_UNIQUE_KEY otherwise.