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Gmail wip #3

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Merged
nnamdiarimah merged 1 commit into from
Dec 3, 2025
Merged

Gmail wip #3

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96 changes: 75 additions & 21 deletions src/routes/gmail.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -58,29 +58,83 @@ router.get('/oauth/callback', asyncHandler(async (req: Request, res: Response) =

console.log('📱 Received OAuth callback:', { code: !!code, state, error });

// Build the deep link to redirect back to the app
const deepLink = `snacktrack://oauth/callback?${new URLSearchParams({
...(code && { code: code as string }),
...(state && { state: state as string }),
...(error && { error: error as string }),
}).toString()}`;
if (error) {
// OAuth error - redirect back with error
const deepLink = `snacktrack://oauth/callback?error=${encodeURIComponent(error as string)}`;
return res.send(`
<!DOCTYPE html>
<html>
<head>
<title>Authorization Failed</title>
<script>
window.location.href = '${deepLink}';
</script>
</head>
<body>
<p>Authorization failed. Redirecting back to app...</p>
<p>If you're not redirected, <a href="${deepLink}">click here</a>.</p>
</body>
</html>
`);
}

// For web, show a simple HTML page that redirects
const html = `
<!DOCTYPE html>
<html>
<head>
<title>Redirecting...</title>
<meta http-equiv="refresh" content="0;url=${deepLink}">
</head>
<body>
<p>Redirecting back to app...</p>
<p>If you're not redirected, <a href="${deepLink}">click here</a>.</p>
</body>
</html>
`;
if (!code) {
return res.status(400).send('Missing authorization code');
}

res.send(html);
try {
// Exchange code for tokens
const oAuth2Client = getOAuth2Client();
const { tokens } = await oAuth2Client.getToken(code as string);

console.log('✅ Exchanged code for tokens');

// Redirect back to app with access token
const deepLink = `snacktrack://oauth/callback?${new URLSearchParams({
access_token: tokens.access_token!,
...(state && { state: state as string }),
}).toString()}`;

// Show success page with auto-redirect
res.send(`
<!DOCTYPE html>
<html>
<head>
<title>Success!</title>
<script>
// Try to redirect
setTimeout(function() {
window.location.href = '${deepLink}';
}, 500);
</script>
</head>
<body style="font-family: Arial, sans-serif; text-align: center; padding: 50px;">
<h2>✅ Authorization Successful!</h2>
<p>Redirecting back to SnackTrack...</p>
<p><a href="${deepLink}" style="color: #4CAF50; text-decoration: none; font-weight: bold;">Click here if you're not redirected automatically</a></p>
<p style="margin-top: 30px; color: #666; font-size: 14px;">You can close this window and return to the app.</p>
</body>
</html>
`);
} catch (error) {
console.error('❌ Error exchanging code for tokens:', error);
const deepLink = `snacktrack://oauth/callback?error=${encodeURIComponent('token_exchange_failed')}`;
res.send(`
<!DOCTYPE html>
<html>
<head>
<title>Error</title>
<script>
window.location.href = '${deepLink}';
</script>
</head>
<body>
<p>Failed to complete authorization. Redirecting back to app...</p>
<p>If you're not redirected, <a href="${deepLink}">click here</a>.</p>
</body>
</html>
`);
}
}));

/**
Expand Down