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Test OTP & 2FA Email Flows

Extract one-time passwords and verification codes from emails. Test your two-factor authentication without manual copy-paste.

OTP testing is tedious and error-prone

  • Manually checking email for codes slows down testing
  • Codes expire quickly, causing flaky tests
  • Copy-paste errors lead to false test failures
  • No way to automate 2FA flows in CI/CD

Automated OTP extraction with plop

  • Fetch emails via API and extract codes programmatically
  • Use regex patterns to parse any OTP format
  • Test expiration logic by timing your requests
  • Run 2FA tests in CI/CD alongside other E2E tests

Example

Extracting OTP from Emailtypescript
import { test, expect } from '@playwright/test';

test('2FA login with OTP', async ({ page, request }) => {
  const testEmail = `otp+${Date.now()}@in.plop.email`;

  // Login with credentials
  await page.goto('/login');
  await page.fill('[name="email"]', testEmail);
  await page.fill('[name="password"]', 'SecurePass123!');
  await page.click('button[type="submit"]');

  // Wait for 2FA prompt
  await expect(page.locator('text=Enter verification code')).toBeVisible();

  // Fetch OTP email
  const response = await request.get(
    'https://api.plop.email/v1/messages/latest',
    {
      params: { to: testEmail },
      headers: { Authorization: `Bearer ${process.env.PLOP_API_KEY}` },
    }
  );
  const email = await response.json();

  // Extract 6-digit OTP code
  const otpMatch = email.textContent.match(/\b(\d{6})\b/);
  expect(otpMatch).toBeTruthy();
  const otpCode = otpMatch[1];

  // Enter OTP
  await page.fill('[name="otp"]', otpCode);
  await page.click('button:has-text("Verify")');

  // Verify login success
  await expect(page.locator('text=Dashboard')).toBeVisible();
});

Benefits

No More Manual Testing

Extract OTP codes automatically without checking your inbox.

Fast Execution

API-based retrieval is faster than IMAP polling or manual checks.

Expiration Testing

Test that expired codes are properly rejected.

CI/CD Compatible

Run 2FA tests as part of your automated pipeline.

Related Integrations

PlaywrightCypress

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