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How to build Travel itinerary app with Lovable?

Learn how to build a travel itinerary app with Lovable. Follow our step-by-step guide to create a seamless and enjoyable travel planning experience.

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How to build Travel itinerary app with Lovable?

 
Project File Structure and Setup
 

  • Create a new Lovable project.
  • Add three new files to your project: index.html, style.css, and app.js.
  • These files will form the structure of your Travel Itinerary application.

 
Adding Dependencies Without a Terminal
 

  • Since Lovable does not offer a terminal, you need to add any external dependencies directly in your index.html file using CDN links.
  • For this example, we will use a basic library (like Moment.js for date handling) to enhance the itinerary experience.
  • Open your index.html file and insert the following code inside the <head> tag to load the dependencies:
    • 
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Travel Itinerary App</title>
  <link rel="stylesheet" href="style.css">
  <!-- Dependency: Moment.js for date handling -->
  <script src="https://cdn.jsdelivr.net/npm/[email protected]/min/moment.min.js"></script>
</head>
  • The above snippet ensures that all dependencies are loaded when your app runs.

 
Building the HTML Structure
 

  • Edit the index.html file to create the basic HTML structure of your travel itinerary app.
  • Add a header, a form for adding itinerary items, and a container to display the itinerary list.
  • Insert the following code in the body section of your index.html file:
    • 
<body>
  <header>
    <h1>Travel Itinerary App</h1>
  </header>

  <main>
    <form id="itinerary-form">
      <input type="text" id="destination" placeholder="Destination" required>
      <input type="date" id="date" required>
      <input type="text" id="activity" placeholder="Activity" required>
      <button type="submit">Add Itinerary</button>
    </form>

    <section id="itinerary-list">
      <h2>Your Itinerary</h2>
      <!-- Itinerary items will appear here -->
    </section>
  </main>

  <script src="app.js"></script>
</body>
  • This layout provides a clear structure where users can enter their travel details and see the planned itinerary below.

 
Styling the App with CSS
 

  • Open the style.css file and add the following CSS to style the app layout and elements:
    • 
/_ Basic styling for the Travel Itinerary App _/
body {
  font-family: Arial, sans-serif;
  margin: 20px;
  background-color: #f4f4f4;
}

header {
  text-align: center;
  margin-bottom: 20px;
}

form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 20px;
}

form input, form button {
  padding: 10px;
  font-size: 1rem;
}

#itinerary-list {
  max-width: 600px;
  margin: 0 auto;
  background-color: #fff;
  border-radius: 5px;
  padding: 20px;
  box-shadow: 0px 0px 10px rgba(0,0,0,0.1);
}

#itinerary-list h2 {
  text-align: center;
}

.itinerary-item {
  border-bottom: 1px solid #ddd;
  padding: 10px 0;
}

.itinerary-item:last-child {
  border-bottom: none;
}
  • This CSS will give your app a clean and modern look, making it easy for users to navigate.

 
Implementing JavaScript Functionality
 

  • Open the app.js file.
  • Add JavaScript code that listens for form submissions, processes the itinerary details, and dynamically updates the itinerary list.
  • Paste the following code in your app.js file:
    • 
// Wait until the document is fully loaded
document.addEventListener('DOMContentLoaded', function () {
  // Reference to the itinerary form and list
  var form = document.getElementById('itinerary-form');
  var itineraryList = document.getElementById('itinerary-list');

  // Listen for form submission
  form.addEventListener('submit', function(event) {
    event.preventDefault(); // Prevent page refresh

    // Get values from the form inputs
    var destination = document.getElementById('destination').value;
    var date = document.getElementById('date').value;
    var activity = document.getElementById('activity').value;

    // Format the date using Moment.js (if date is valid)
    var formattedDate = moment(date).format('MMMM Do, YYYY');

    // Create a new itinerary item element
    var item = document.createElement('div');
    item.className = 'itinerary-item';
    item.innerHTML = '<strong>Destination:</strong> ' + destination + '<br>' +
                     '<strong>Date:</strong> ' + formattedDate + '<br>' +
                     '<strong>Activity:</strong> ' + activity;

    // Append the item to the itinerary list
    itineraryList.appendChild(item);

    // Clear the form inputs
    form.reset();
  });
});
  • This script waits for the document to load, then listens for the form submission. When the form is submitted, it collects the input values, formats the date using Moment.js, and creates a new itinerary item in the list.

 
Testing Your Travel Itinerary App
 

  • After completing the above steps, your app is ready for testing.
  • In Lovable, click the “Run” button to start your project.
  • Interact with your Travel Itinerary App by filling out the form and verifying that your itinerary items appear in the list with the correct formatting.

 
Final Notes and Deployment
 

  • Every time you make changes to any of the files (index.html, style.css, app.js), save them and use the “Run” feature to view your updates.
  • If you need to add any other dependencies later, simply insert their CDN links into the index.html file as done for Moment.js.
  • This guide provides all necessary steps to build a Travel Itinerary App with Lovable without using a terminal. Enjoy building your app!

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How to build a Travel Itinerary App with Lovable: Creating and Managing Itineraries with Express and MongoDB


const express = require('express');
const mongoose = require('mongoose');

const app = express();
app.use(express.json());

const ItinerarySchema = new mongoose.Schema({
  user: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true },
  title: { type: String, required: true },
  dates: {
    start: { type: Date, required: true },
    end: { type: Date, required: true }
  },
  stops: [{
    location: { type: String, required: true },
    arrival: { type: Date, required: true },
    departure: { type: Date, required: true },
    activities: [{ type: String }],
    isLoved: { type: Boolean, default: false }
  }]
});

const Itinerary = mongoose.model('Itinerary', ItinerarySchema);

app.post('/api/itineraries', async (req, res) => {
  try {
    const itinerary = new Itinerary(req.body);
    await itinerary.save();
    res.status(201).json(itinerary);
  } catch (error) {
    res.status(400).json({ error: error.message });
  }
});

app.post('/api/itineraries/:id/stops', async (req, res) => {
  try {
    const itinerary = await Itinerary.findById(req.params.id);
    if (!itinerary) return res.status(404).json({ error: 'Itinerary not found' });
    itinerary.stops.push(req.body);
    await itinerary.save();
    res.status(200).json(itinerary);
  } catch (error) {
    res.status(400).json({ error: error.message });
  }
});

mongoose.connect('mongodb://localhost/travelitinerary', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => app.listen(3000))
  .catch(err => console.error(err));

How to Fetch Loved Travel Recommendations with Express and Axios

const express = require('express');
const axios = require('axios');
const router = express.Router();

router.get('/api/external/recommendations', async (req, res) => {
  const { latitude, longitude, category } = req.query;
  if (!latitude || !longitude) {
    return res.status(400).json({ error: 'latitude and longitude query parameters are required.' });
  }
  try {
    const externalResponse = await axios.get('https://api.externaltravel.com/v1/places', {
      params: {
        lat: latitude,
        lng: longitude,
        term: category || 'landmark',
        sort: 'popular'
      },
      headers: {
        'Authorization': 'Bearer YOUR_EXTERNAL_API\_KEY'
      }
    });
    
    // Example: Filter and transform data to include only highly rated places marked as "loved"
    const recommendations = externalResponse.data.places
      .filter(place => place.rating >= 4.5)
      .map(place => ({
        id: place.id,
        name: place.name,
        address: place.location.address,
        rating: place.rating,
        isLoved: true // mark as loved based on high rating
      }));
    
    res.status(200).json({ recommendations });
  } catch (err) {
    res.status(500).json({ error: err.message });
  }
});

module.exports = router;

How to delay stops and add a little love in your travel itinerary app


const express = require('express');
const router = express.Router();
const mongoose = require('mongoose');

const ItinerarySchema = new mongoose.Schema({
  user: { type: mongoose.Schema.Types.ObjectId, ref: 'User', required: true },
  title: { type: String, required: true },
  dates: {
    start: { type: Date, required: true },
    end: { type: Date, required: true }
  },
  stops: [{
    stopId: { type: mongoose.Schema.Types.ObjectId, auto: true },
    location: { type: String, required: true },
    arrival: { type: Date, required: true },
    departure: { type: Date, required: true },
    activities: [{ type: String }],
    isLoved: { type: Boolean, default: false }
  }]
});

const Itinerary = mongoose.model('Itinerary', ItinerarySchema);

router.put('/api/itineraries/:itineraryId/stops/:stopId/delay', async (req, res) => {
  try {
    const { itineraryId, stopId } = req.params;
    const { delay } = req.body; // delay in minutes

    if (!delay || isNaN(delay)) {
      return res.status(400).json({ error: 'A valid delay (in minutes) is required.' });
    }

    const itinerary = await Itinerary.findById(itineraryId);
    if (!itinerary) {
      return res.status(404).json({ error: 'Itinerary not found.' });
    }

    const stops = itinerary.stops;
    const index = stops.findIndex(stop => stop.stopId.toString() === stopId);
    if (index === -1) {
      return res.status(404).json({ error: 'Stop not found in itinerary.' });
    }

    const delayMs = delay \* 60000;

    // Adjust the departure time for the affected stop
    stops[index].departure = new Date(new Date(stops[index].departure).getTime() + delayMs);

    // Propagate delay to subsequent stops
    for (let i = index + 1; i < stops.length; i++) {
      stops[i].arrival = new Date(new Date(stops[i].arrival).getTime() + delayMs);
      stops[i].departure = new Date(new Date(stops[i].departure).getTime() + delayMs);
    }

    // If the delay is significant, mark the stop as "loved"
    if (delay >= 30) {
      stops[index].isLoved = true;
    }

    await itinerary.save();
    res.json({ itinerary });
  } catch (err) {
    res.status(500).json({ error: err.message });
  }
});

module.exports = router;

Want to explore opportunities to work with us?

Connect with our team to unlock the full potential of no-code solutions with a no-commitment consultation!

Book a Free Consultation
Matt Graham, CEO of Rapid Developers

Book a call with an Expert

Starting a new venture? Need to upgrade your web app? RapidDev builds application with your growth in mind.

Book a free No-Code consultation

Best Practices for Building a Travel itinerary app with AI Code Generators

 
Overview of the Travel Itinerary App with AI Code Generators
 

  • This guide explains how to build an interactive travel itinerary app using AI code generators.
  • The app is designed to help users organize travel plans with smart suggestions generated by AI.
  • It is structured for non-tech persons and focuses on best practices, clear instructions, and minimal technical jargon.

 
Project Planning and Setting Requirements
 

  • Outline the purpose of your app: helping users plan travel itineraries, suggesting destinations, activities, and accommodations.
  • Identify the main features: user input forms, dynamic itinerary generation, integration with mapping services, and AI-powered suggestions.
  • Decide on a user-friendly interface with a mobile-first approach to suit travelers on the go.
  • Prepare a list of essential tasks such as design, development, testing, and deployment.

 
Selecting Tools and AI Code Generators
 

  • Explore popular no-code or low-code platforms that support AI integrations such as Bubble, Glide, or OutSystems.
  • Review available AI code generators like OpenAI's Codex, which can help in auto-generating code snippets based on natural language descriptions.
  • Select a tool that provides robust integrations (APIs, plugins) for AI functionalities and supports iterative design.
  • Consult the tool’s documentation and community resources for guidance on AI integration and best practices.

 
Designing the User Interface (UI)
 

  • Sketch the layout using wireframing tools such as Figma or Adobe XD. Focus on a clean and intuitive design.
  • Create sections for input (travel dates, number of travelers, preferences), itinerary display, and recommendations.
  • Ensure all interactive components like buttons, drop-down menus, and maps are easily accessible.
  • Use visual elements such as icons and illustrations related to travel to enhance the user experience.

 
Integrating AI Code Generators into Your App
 

  • Configure the AI code generator API by registering and obtaining necessary API keys.
  • Create an integration process where user input gets sent to the AI code generator to produce itinerary suggestions.
  • Implement code that connects your app to the AI service. For example, if using a simple backend script, include the following snippet:
  • 
# Example Python code snippet for AI integration
import requests


    def get_itinerary_suggestions(user_input):
        api_url = "https://api.example-ai.com/generate"
        headers = {"Authorization": "Bearer YOUR_API_KEY"}
        payload = {"input": user_input}
        response = requests.post(api_url, json=payload, headers=headers)
        if response.status_code == 200:
            return response.json().get("suggestions")
        else:
            return "An error occurred while generating suggestions."
    

    Example usage
    

    user_input = "3-day trip in Paris with a focus on art and cuisine"
    suggestions = get_itinerary_suggestions(user_input)
    print(suggestions)


  • Ensure that the backend of your app can handle API responses and display the itinerary suggestions seamlessly.

 
Building and Customizing Key Features
 

  • Develop interactive forms where users enter their travel inputs such as dates, budget, and interests.
  • Design dynamic result sections to present AI-generated itineraries clearly with options to customize or edit suggestions.
  • Integrate external mapping services (such as Google Maps APIs) to display locations and directions based on the itinerary.
  • Implement data storage solutions to allow users to save and revisit their planned itineraries.

 
Testing and Debugging Your Itinerary App
 

  • Conduct manual testing by simulating user scenarios to ensure that input fields, AI integrations, and display components work together seamlessly.
  • Request feedback from potential users to identify usability issues.
  • Use debugging tools provided by your development platform and review console logs for any errors in API integrations.
  • Iterate over design and functionality based on testing feedback, updating both UI and backend integrations as necessary.

 
Deployment and Hosting
 

  • Choose a cloud platform or hosting service that supports your chosen development tool (for example, Heroku, Netlify, or your no-code platform’s built-in hosting).
  • Ensure that your app is configured for a production environment, including the management of API keys and environment variables securely.
  • Deploy a test version, review performance and usability, and then move to production when ready.
  • Monitor usage and maintain logs to allow for ongoing optimization and troubleshooting.

 
Post-Launch Best Practices
 

  • Regularly update the AI integration to keep pace with new features and API changes provided by the AI code generator.
  • Collect user feedback continuously to further refine user experience, responsiveness, and reliability.
  • Incorporate analytics to track how users interact with your app and to identify areas for improvement.
  • Plan for regular maintenance, security updates, and feature expansions based on user demand and technological advances.

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