Reading and Writing Data Using the Formsite API

Hey there, fellow JavaScript aficionados! Ready to dive into the world of Formsite API integration? Let's roll up our sleeves and get our hands dirty with some code.

Introduction

Formsite's API is a powerful tool for syncing data between your app and Formsite forms. Whether you're building a custom dashboard or integrating form submissions into your workflow, this API has got you covered.

Authentication

First things first, you'll need to grab your API credentials from Formsite. Once you've got those, let's authenticate:

const apiKey = 'your-api-key';
const headers = {
  'Authorization': `Bearer ${apiKey}`,
  'Content-Type': 'application/json'
};

Reading Data

Want to fetch those form submissions? Here's how:

async function getSubmissions(formId) {
  const response = await fetch(`https://fsapi.formsite.com/api/v2/forms/${formId}/results`, { headers });
  const data = await response.json();
  return data.results;
}

Writing Data

Creating or updating submissions is just as easy:

async function createSubmission(formId, submissionData) {
  const response = await fetch(`https://fsapi.formsite.com/api/v2/forms/${formId}/results`, {
    method: 'POST',
    headers,
    body: JSON.stringify(submissionData)
  });
  return response.json();
}

Syncing Data

Now, let's put it all together with a sync function:

async function syncData(formId, localData) {
  const remoteData = await getSubmissions(formId);
  
  for (const item of localData) {
    if (item.id) {
      // Update existing submission
      await updateSubmission(formId, item.id, item);
    } else {
      // Create new submission
      await createSubmission(formId, item);
    }
  }
}

Error Handling and Rate Limiting

Don't forget to handle those pesky errors and respect rate limits:

async function apiCall(url, options) {
  try {
    const response = await fetch(url, options);
    if (response.status === 429) {
      // Rate limited, wait and retry
      await new Promise(resolve => setTimeout(resolve, 1000));
      return apiCall(url, options);
    }
    return response.json();
  } catch (error) {
    console.error('API call failed:', error);
    throw error;
  }
}

Optimizing Performance

Want to speed things up? Try batch operations:

async function batchSubmissions(formId, submissions) {
  const batchSize = 50;
  for (let i = 0; i < submissions.length; i += batchSize) {
    const batch = submissions.slice(i, i + batchSize);
    await Promise.all(batch.map(sub => createSubmission(formId, sub)));
  }
}

Webhooks for Real-time Updates

Set up webhooks in Formsite, then handle them like a pro:

app.post('/webhook', (req, res) => {
  const payload = req.body;
  // Process the webhook payload
  console.log('New submission:', payload);
  res.sendStatus(200);
});

Testing and Debugging

Always test your API interactions:

describe('Formsite API', () => {
  it('should fetch submissions', async () => {
    const submissions = await getSubmissions('your-form-id');
    expect(submissions).toBeDefined();
    expect(submissions.length).toBeGreaterThan(0);
  });
});

Conclusion

And there you have it! You're now equipped to read, write, and sync data like a Formsite API ninja. Remember to keep your code clean, handle errors gracefully, and always test thoroughly. Happy coding!