Ship the product. bem does the structured work behind every upload.

import Bem from "bem-ai-sdk";

const bem = new Bem(); // reads BEM_API_KEY from the environment

export async function onUpload(upload: { id: string; base64: string }) {
  // 1. A user uploads a file in your product. Classify labels it and sends it to the right Extract.
  const { call, error } = await bem.workflows.call("vendor-onboarding", {
    input: { singleFile: { inputType: "pdf", inputContent: upload.base64 } },
    callReferenceID: upload.id,
    wait: true, // blocks up to 30 seconds; use a webhook for longer files
  });
  if (error || !call) throw new Error(error ?? "bem returned no call");

  // 2. The terminal output is the Extract event: typed JSON, and a score for every field.
  for (const output of call.outputs) {
    if (output.eventType !== "extract") continue;
    saveVendor(upload.id, output.transformedContent);
    if ((output.avgConfidence ?? 1) < 0.9) queueForReview(upload.id, output.fieldConfidences);
  }
}