# Node.js
npm install evernote

# Python
pip install evernote

# Create .env file
cat << 'EOF' >> .env
EVERNOTE_CONSUMER_KEY=your-consumer-key
EVERNOTE_CONSUMER_SECRET=your-consumer-secret
EVERNOTE_SANDBOX=true
EOF

// Node.js - Initialize client for OAuth flow
const Evernote = require('evernote');

const client = new Evernote.Client({
  consumerKey: process.env.EVERNOTE_CONSUMER_KEY,
  consumerSecret: process.env.EVERNOTE_CONSUMER_SECRET,
  sandbox: process.env.EVERNOTE_SANDBOX === 'true',
  china: false
});

# Python - Initialize client
from evernote.api.client import EvernoteClient

client = EvernoteClient(
    consumer_key='your-consumer-key',
    consumer_secret='your-consumer-secret',
    sandbox=True
)

// Step 5a: Get request token and redirect URL
const callbackUrl = 'http://localhost:3000/oauth/callback';

client.getRequestToken(callbackUrl, (error, oauthToken, oauthTokenSecret) => {
  if (error) {
    console.error('Failed to get request token:', error);
    return;
  }

  // Store tokens in session (required for callback)
  req.session.oauthToken = oauthToken;
  req.session.oauthTokenSecret = oauthTokenSecret;

  // Redirect user to Evernote authorization page
  const authorizeUrl = client.getAuthorizeUrl(oauthToken);
  res.redirect(authorizeUrl);
});

// Step 5b: Handle OAuth callback
app.get('/oauth/callback', (req, res) => {
  const oauthVerifier = req.query.oauth_verifier;

  client.getAccessToken(
    req.session.oauthToken,
    req.session.oauthTokenSecret,
    oauthVerifier,
    (error, oauthAccessToken, oauthAccessTokenSecret, results) => {
      if (error) {
        console.error('Failed to get access token:', error);
        return res.status(500).send('Authentication failed');
      }

      // Store access token securely (valid for 1 year by default)
      req.session.accessToken = oauthAccessToken;

      // Token expiration included in results.edam_expires
      console.log('Token expires:', new Date(parseInt(results.edam_expires)));

      res.redirect('/dashboard');
    }
  );
});

// Create authenticated client and verify
const authenticatedClient = new Evernote.Client({
  token: req.session.accessToken,
  sandbox: true
});

const userStore = authenticatedClient.getUserStore();
const noteStore = authenticatedClient.getNoteStore();

// Verify connection
userStore.getUser().then(user => {
  console.log('Authenticated as:', user.username);
  console.log('User ID:', user.id);
}).catch(err => {
  console.error('Authentication verification failed:', err);
});

const client = new Evernote.Client({
  token: process.env.EVERNOTE_DEV_TOKEN,
  sandbox: true
});

const noteStore = client.getNoteStore();