openevidence-webhooks-events

# OpenEvidence Webhooks & Events ## Overview OpenEvidence delivers webhook notifications for clinical evidence retrieval workflows. Subscribe to events when queries complete, evidence bases are updated, new citations are added, or clinical reviews are flagged. Use these webhooks to keep clinical decision support systems current and trigger downstream audit workflows in real time. ## Webhook Registration ```typescript const response = await fetch("https://api.openevidence.com/v1/webhooks", { method: "POST", headers: { "Authorization": `Bearer ${process.env.OPENEVIDENCE_API_KEY}`, "Content-Type": "application/json", }, body: JSON.stringify({ url: "https://yourapp.com/webhooks/openevidence", events: ["query.completed", "evidence.updated", "citation.added", "review.flagged"], secret: process.env.OPENEVIDENCE_WEBHOOK_SECRET, }), }); ``` ## Signature Verification ```typescript import crypto from "crypto"; import { Request, Response, NextFunction } from "express"; function verifyOpenEvidenceSignature(req: Request, res: Response, next: NextFunction) { const signature = req.headers["x-openevidence-signature"] as string; const expected = crypto.createHmac("sha256", process.env.OPENEVIDENCE_WEBHOOK_SECRET!) .update(req.body).digest("hex"); if (!crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected))) { return res.status(401).json({ error: "Invalid signature" }); } next(); } ``` ## Event Handler ```typescript import expre...