La vérification d'e-mails pour les agences d'e-mail marketing

import { parse, stringify } from "csv";
import fs from "fs";
const auth = { Authorization: `Bearer ${process.env.MAILBEAM_KEY}` };
async function verifyList(emails: string[]) {
  const job = await fetch("https://api.mailbeam.dev/v1/verify/batch", {
    method: "POST",
    headers: { ...auth, "Content-Type": "application/json" },
    body: JSON.stringify({ emails }),
  }).then((r) => r.json());
  // Attendez le webhook batch.completed, ou interrogez /v1/jobs/:id jusqu'à la fin.
  const { results } = await fetch(
    `https://api.mailbeam.dev/v1/jobs/${job.job_id}/results?format=json`,
    { headers: auth }
  ).then((r) => r.json());
  return results; // [{ index, email, status, score, reason }]
}
async function preflightVerify(inputPath: string, outputPath: string) {
  const rows = await parseCSV(inputPath);
  const results = await verifyList(rows.map((r) => r.email));
  // Les résultats reviennent dans l'ordre d'envoi, et portent aussi leur index.
  const cleaned = rows
    .map((row, i) => ({ ...row, ...results[i] }))
    .filter((r) => r.status === "deliverable");
  await writeCSV(outputPath, cleaned);
  console.log(`Avant-vol terminé : ${cleaned.length}/${rows.length} adresses retenues.`);
}
preflightVerify("./client-list.csv", "./campaign-ready.csv");