JavaScript

npm install filecheck-js

​

Quickstart

import { loadFilecheck } from 'filecheck-js';

const fc = await loadFilecheck('pk_…');
if (fc) {
  const intake = fc.elements.create('intake', { workflowId: 'wf_…' });

  intake.on('status', ({ canProceed, jobId }) => {
    submitButton.disabled = !canProceed;      // authoritative — never re-derive
    jobIdInput.value = jobId ?? '';           // verify server-side before fulfilling
  });

  intake.mount('#fc-slot');
}

​

loadFilecheck(publishableKey, options?)

• Idempotent. Repeated and concurrent calls inject exactly one <script> tag and share one promise. A tag you added yourself is reused.
• SSR-safe. In a non-browser environment it resolves null instead of touching window, so you can call it unconditionally in isomorphic code.
• Recoverable. A load failure or timeout rejects with a descriptive error; calling loadFilecheck again retries the load.

​

TypeScript