Kernstra.getLicense()
The current license state, as the exported LicenseState. if (state.valid) state.features.includes('export') type-checks: the valid half has every field, the invalid half the reason.
An invalid state's reason is one of no-license, insecure-context (plain HTTP), malformed, unsupported-algorithm, invalid-signature, not-yet-valid, expired, origin-mismatch, wrong-holder, revoked, paused or stale (the licensing API has not confirmed the license for more than 48 hours, or never on this browser and the check could not get through; the SDK loads, watermarked and without extract, and asks again whenever a document is opened). A paused state carries pauseReason: payment, suspended, term_ended, trial_ended or other. During a licensing-API outage getLicense() says why output is watermarked. It reports a verdict as soon as it arrives; documents already open keep the rights they were opened with.
Signature
Returns
LicenseState A union narrowed on valid: the valid half carries watermark, env, plan, features, offline and, on a license with an expiry date, expiresAt; the invalid half carries watermark: true, a reason and, when the reason is paused, a pauseReason.
Example
const state = Kernstra.getLicense(); if (!state.valid) console.warn('License not valid:', state.reason); else if (state.watermark) console.warn('Output is watermarked (development token)');