Displaying Mortgage Info In The 'Se Pant' Modal

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Displaying Mortgage Information in the 'Se Pant' Modal

Hey everyone! Today, we're diving into how to effectively display mortgage information within the "Se pant" modal using the api.beepi.no API. This is super important for users to understand the financial status of a vehicle, so let's get into the nitty-gritty. We'll cover everything from making the API calls to handling different response scenarios, ensuring a smooth and informative user experience. Ready to roll up your sleeves? Let's go!

Understanding the API: GET /mortgage/{registrationNumber}

Alright, first things first, let's understand the core of our operation: the API endpoint. We're using a GET request to /mortgage/{registrationNumber}. This endpoint is designed to fetch mortgage (or pant) information from Brreg Losoreregisteret, a crucial registry in Norway. The most important thing here is the registrationNumber, which is the vehicle's license plate (like AB12345). Think of it like a unique ID for each car.

Now, let's break down the API call itself. It’s pretty straightforward, but knowing the details is key. We send a GET request, and in the URL, we provide the registrationNumber. The API then does its magic and returns a response that tells us whether the vehicle has a mortgage and, if so, the details of the mortgage. This includes who the lender is, the amount, and other relevant info. This is where the magic happens, guys. Understanding this part makes everything else easier. Making sure you have the correct registrationNumber is very important.

Parameters

The API call only needs one parameter: registrationNumber. This is a path parameter, meaning it's included directly in the URL. For example: /mortgage/AB12345. Make sure the registration number is correctly formatted (e.g., two letters followed by five numbers) to avoid errors. Incorrect formatting will lead to errors. Always check the format before making the call. It saves a lot of time!

Decoding the API Responses

Response (Has Mortgage)

Let's get down to the responses. The API will return different responses depending on whether a mortgage exists. First up, the response when a vehicle does have a mortgage. Here’s what it might look like:

{
  "status": "complete",
  "completedAt": "2025-10-24T11:15:00Z",
  "cached": false,
  "hasMortgage": true,
  "data": {
    "rettsstiftelser": [
      {
        "dokumentnummer": "2025-12345",
        "rolle": "PANTHAVER",
        "organisasjonsnavn": "Example Bank AS",
        "belopIValuta": 300000,
        "valutakode": "NOK"
      }
    ]
  },
  "registrationNumber": "AB12345",
  "correlationId": "req-12345"
}

As you can see, the hasMortgage field is true. The data field contains an array named rettsstiftelser, which holds the mortgage details. Inside this array, you'll find information like the lender's name (organisasjonsnavn), the amount of the mortgage (belopIValuta), and the currency (valutakode).

Response (No Mortgage)

Now, let's look at the response when a vehicle doesn't have a mortgage:

{
  "status": "complete",
  "completedAt": "2025-10-24T11:15:00Z",
  "cached": false,
  "hasMortgage": false,
  "data": {
    "rettsstiftelser": []
  },
  "registrationNumber": "AB12345",
  "correlationId": "req-12345"
}

Here, the hasMortgage field is false. The data field still exists, but the rettsstiftelser array is empty. This tells us there are no registered mortgages for this vehicle. Easy peasy, right?

Response (Error Handling)

Things don’t always go as planned, and that's where error handling comes in. The API might return an error if something goes wrong. Here's an example:

{
  "status": "error",
  "code": "MORTGAGE_NOT_FOUND",
  "message": "No mortgage information found for this vehicle registration number.",
  "correlationId": "req-12345"
}

In this case, the status is "error", and we get a specific code and message to help us understand what went wrong. There are several error codes you need to be ready for. We'll go over them in the next section.

Handling Error Codes

Understanding and handling error codes is crucial for providing a robust user experience. Let’s go through the error codes and what they mean:

  • INVALID_INPUT: This means the registration number is in the wrong format. Double-check the user input and validate it before making the API call. Give the user a clear message like "Invalid registration number format. Please enter a valid license plate."
  • MORTGAGE_NOT_FOUND: This is the most common one. It means the vehicle has no registered mortgage. Display a message like "No mortgage information found for this vehicle." It's not an error; it's just the expected outcome for some vehicles.
  • AUTH_ERROR: This indicates an authentication issue. It could be due to incorrect API keys or other authorization problems. Make sure your authentication is set up correctly. If the problem persists, reach out to the API provider.
  • TIMEOUT_ERROR: The request took too long to respond. This might be a temporary issue. You could retry the request or show a message like "The request timed out. Please try again later."
  • SERVICE_UNAVAILABLE: The Brreg service is temporarily down. Show a message like "The mortgage information service is temporarily unavailable. Please try again later."
  • RATE_LIMIT_EXCEEDED: You've made too many requests in a short period. Implement rate limiting in your code or contact the API provider to increase your rate limit.
  • INTERNAL_ERROR: An internal server error occurred. This is a generic error, so inform the user something went wrong with the system, and to try again later. Log the error details on your end to help debug the issue.

Implementing in the "Se pant" Modal

Now, let's put it all together and see how to implement this in the "Se pant" modal. Here’s a general outline, but the specifics will depend on your tech stack (e.g., React, Angular, Vue.js, etc.).

  1. Get the Registration Number: When the user opens the modal, you'll need the vehicle's registration number. This will likely come from the context of where the modal is opened. Make sure you have this before you start.
  2. Make the API Call: Use JavaScript (or your preferred language) to make the GET request to the API endpoint (/mortgage/{registrationNumber}). You'll probably use fetch or axios for this. Don't forget to handle the API key or any other authentication requirements.
  3. Process the Response: Once you get the response, parse the JSON. Check the status and hasMortgage fields to determine what to do next.
  4. Display the Information:
    • If hasMortgage is true: Display the mortgage details (lender, amount, currency) in a clear and user-friendly way. Make sure to format the amounts correctly. Present the data. No complicated displays.
    • If hasMortgage is false: Display a message saying, "No mortgage found for this vehicle."
    • If there is an error: Show an appropriate error message based on the error code. Be friendly and helpful to the user. Guide them through the process. Make sure to handle all cases.
  5. User Interface (UI) Considerations:
    • Loading State: Show a loading indicator while the API request is in progress.
    • Error Handling: Display user-friendly error messages, not just raw error codes.
    • Formatting: Format numbers and dates correctly for the user's locale.
    • Accessibility: Ensure the information is accessible to all users, including those using screen readers. Make sure all elements have appropriate ARIA attributes.

Code Example (Conceptual)

Here’s a conceptual example using JavaScript and fetch:

async function getMortgageInfo(registrationNumber) {
  try {
    const response = await fetch(`https://api.beepi.no/mortgage/${registrationNumber}`);
    const data = await response.json();

    if (data.status === 'error') {
      // Handle errors
      switch (data.code) {
        case 'MORTGAGE_NOT_FOUND':
          return { hasMortgage: false, message: 'No mortgage found.' };
        case 'INVALID_INPUT':
          return { hasMortgage: false, message: 'Invalid registration number.' };
        default:
          return { hasMortgage: false, message: 'An error occurred.' };
      }
    }

    // Handle success
    if (data.hasMortgage) {
      return {
        hasMortgage: true,
        lender: data.data.rettsstiftelser[0].organisasjonsnavn,
        amount: data.data.rettsstiftelser[0].belopIValuta,
        currency: data.data.rettsstiftelser[0].valutakode,
      };
    } else {
      return { hasMortgage: false, message: 'No mortgage found.' };
    }
  } catch (error) {
    // Handle network errors
    console.error('Fetch error:', error);
    return { hasMortgage: false, message: 'An error occurred while fetching data.' };
  }
}

// Example usage
async function displayMortgageInfo(registrationNumber) {
  const info = await getMortgageInfo(registrationNumber);
  const modalContent = document.getElementById('modalContent');

  if (info.hasMortgage) {
    modalContent.innerHTML = `Mortgage: ${info.lender} - ${info.amount} ${info.currency}`;
  } else {
    modalContent.innerHTML = info.message;
  }
}

This is just a starting point, guys. You’ll need to adapt it to your specific needs. Pay close attention to the error handling and UI/UX.

Optimizing the User Experience

Making this feature great isn’t just about showing the data; it’s about making the entire experience smooth and intuitive. Here are some tips:

  • Loading Indicators: Show a loading spinner while fetching data. This prevents the user from wondering if anything is happening. It also makes the interaction clearer.
  • Clear Error Messages: Instead of displaying technical error codes, translate them into user-friendly messages. For example, instead of “AUTH_ERROR,” show “There was a problem authenticating your request. Please try again.”
  • Informative Display: When displaying mortgage details, clearly label each piece of information (e.g., "Lender: Example Bank," "Amount: NOK 300,000"). Use formatting to make it easier to read.
  • Accessibility: Make sure the modal and its contents are accessible to all users. Use ARIA attributes and ensure proper contrast ratios.
  • Performance: Optimize the API calls and data processing to ensure the modal loads quickly. Cache frequently accessed data where possible.
  • Provide Context: Explain why you are showing the mortgage information. A simple line like "This information is pulled from the official Norwegian vehicle registry" can help. Always provide context.

Going Further

  • Caching: Implement caching to reduce the number of API calls, especially for frequently accessed registration numbers. Reduce latency and cost.
  • Logging: Log API requests and responses for debugging and monitoring. Track usage, errors, and performance. You can track this information to improve your process.
  • User Feedback: Allow users to provide feedback on the information provided. This can help you refine the accuracy and clarity of your data. Feedback is very important.
  • Security: Ensure that the API keys and any sensitive information are handled securely.

Conclusion

Alright, folks, we've covered a lot of ground today! You've got the tools to successfully display mortgage information in your "Se pant" modal. By understanding the API, handling responses, and focusing on the user experience, you can create a valuable feature for your users. Remember to prioritize clear communication, robust error handling, and a user-friendly interface. Happy coding, and let me know if you have any questions! Good luck. Always test your code and iterate based on user feedback to create the best possible experience!