Signbee API vs DocuSign API: 1 Endpoint vs 400+

headers: {
  "Authorization": "Bearer sb_live_your_api_key",
  "Content-Type": "application/json"
}

// Step 1: JWT token generation omitted (~35 lines)
const token = await getDocuSignJWTToken();

// Step 2: Query User Info for Account Base URI
const userRes = await fetch("https://account-d.docusign.com/oauth/userinfo", {
  headers: { Authorization: `Bearer ${token}` }
});
const { accounts } = await userRes.json();
const accountId = accounts[0].account_id;
const baseUri = accounts[0].base_uri;

// Step 3: Construct Envelope with Tab Coordinates
const envelope = {
  emailSubject: "Please sign this Master Services Agreement",
  documents: [{
    documentBase64: Buffer.from(pdfBuffer).toString("base64"),
    name: "MSA.pdf",
    fileExtension: "pdf",
    documentId: "1"
  }],
  recipients: {
    signers: [{
      email: "jane@client.com",
      name: "Jane Smith",
      recipientId: "1",
      routingOrder: "1",
      tabs: {
        signHereTabs: [{
          anchorString: "/sig1/",
          anchorUnits: "pixels",
          anchorXOffset: "20",
          anchorYOffset: "10"
        }]
      }
    }]
  },
  status: "sent"
};

// Step 4: Dispatch Envelope
const res = await fetch(`${baseUri}/restapi/v2.1/accounts/${accountId}/envelopes`, {
  method: "POST",
  headers: {
    "Authorization": `Bearer ${token}`,
    "Content-Type": "application/json"
  },
  body: JSON.stringify(envelope)
});

const response = await fetch("https://signb.ee/api/v1/send", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Authorization": "Bearer sb_live_your_api_key",
  },
  body: JSON.stringify({
    title: "Master Services Agreement",
    markdown: "# Master Services Agreement\n\nBetween Acme Corp and Client...",
    recipient_name: "Jane Smith",
    recipient_email: "jane@client.com",
    webhook_url: "https://api.yourdomain.com/webhooks/signbee"
  }),
});

const { document_id, signing_url } = await response.json();

// DocuSign Connect: Must handle 24 events, XML or nested JSON, and complex filters
app.post("/webhooks/docusign", async (req, res) => {
  const envelopeStatus = req.body?.data?.envelopeSummary?.status;
  if (envelopeStatus === "completed") {
    // Requires additional API call to download signed PDF and certificate
    const docPdf = await fetchDocuSignPdf(req.body.data.envelopeId);
  }
  res.status(200).send();
});

// Signbee: Exactly 1 event with pre-signed PDF URL and cryptographic SHA-256 seal
app.post("/webhooks/signbee", express.raw({ type: "application/json" }), (req, res) => {
  const sig = req.headers["x-signbee-signature"];
  // Constant-time HMAC verification
  if (!verifySignbeeSignature(req.body, sig, process.env.SIGNBEE_WEBHOOK_SECRET)) {
    return res.status(401).send("Invalid signature");
  }
  const payload = JSON.parse(req.body.toString("utf8"));
  if (payload.event === "document.signed") {
    console.log("PDF ready immediately:", payload.signed_pdf_url);
    console.log("Tamper seal:", payload.signature_hash);
  }
  res.status(200).json({ received: true });
});