1. Domo API Authentication Failures

Understanding the Issue

Next.js applications that connect to Domo's API often face authentication errors due to invalid tokens, expired credentials, or incorrect OAuth settings.

Root Causes

• Incorrect client ID and secret configuration.
• Token expiration causing failed API requests.
• Rate limits or permissions restricting API access.

Fix

Store API credentials securely and refresh tokens before expiration:

// .env.local
DOMO_CLIENT_ID=your-client-id
DOMO_CLIENT_SECRET=your-client-secret

Use a backend API route to authenticate with Domo and fetch fresh tokens:

// pages/api/domo-auth.js
export default async function handler(req, res) {
  const response = await fetch("https://api.domo.com/oauth/token", {
    method: "POST",
    headers: {
      "Content-Type": "application/x-www-form-urlencoded",
    },
    body: `grant_type=client_credentials&client_id=${process.env.DOMO_CLIENT_ID}&client_secret=${process.env.DOMO_CLIENT_SECRET}`,
  });

  const data = await response.json();
  res.status(200).json(data);
}

2. Embedding Domo Dashboards in Next.js

Understanding the Issue

Embedding Domo dashboards in a Next.js application can lead to CORS errors, authentication issues, or blank iframe displays.

Root Causes

• Iframe security policies blocking external content.
• Incorrectly formatted embed URLs.
• Missing authentication tokens in requests.

Fix

Ensure the correct iframe settings and provide authentication headers:

<iframe
  src="https://public.domo.com/embed/pages/your-page-id"
  width="100%"
  height="600"
  style={{ border: "none" }}
  allow="fullscreen"
/>

For secured dashboards, use JWT authentication:

// Generate JWT token for embedding
const token = generateDomoEmbedToken(userId, pageId);
const iframeSrc = `https://public.domo.com/embed/pages/${pageId}?token=${token}`;

3. Slow Data Fetching from Domo APIs

Understanding the Issue

Fetching large datasets from Domo APIs in a Next.js application can cause performance bottlenecks and slow rendering times.

Root Causes

• Fetching excessive data on the client-side.
• Not using caching for repeated queries.
• API rate limits causing delays.

Fix

Use server-side data fetching and caching:

export async function getServerSideProps() {
  const response = await fetch("https://api.domo.com/v1/datasets/your-dataset-id", {
    headers: {
      Authorization: `Bearer ${process.env.DOMO_ACCESS_TOKEN}`,
    },
  });
  const data = await response.json();
  return { props: { data } };
}

4. CORS Issues When Fetching Domo Data

Understanding the Issue

Fetching Domo data directly from the frontend may trigger CORS errors due to Domo API restrictions.

Root Causes

• Domo API does not allow direct browser requests.
• Missing CORS headers in the API response.

Fix

Use a backend proxy to handle Domo requests securely:

// pages/api/domo-proxy.js
export default async function handler(req, res) {
  res.setHeader("Access-Control-Allow-Origin", "*");
  res.setHeader("Access-Control-Allow-Methods", "GET, POST, OPTIONS");
  res.setHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");
  if (req.method === "OPTIONS") return res.status(200).end();
  
  const response = await fetch("https://api.domo.com/v1/datasets/your-dataset-id", {
    headers: { Authorization: `Bearer ${process.env.DOMO_ACCESS_TOKEN}` },
  });
  const data = await response.json();
  res.status(200).json(data);
}

Conclusion

Integrating Domo with Next.js applications enhances data analytics capabilities but comes with authentication, performance, and API access challenges. By securing API keys, implementing caching, and using backend proxies, developers can ensure a robust and efficient integration.

FAQs

1. How can I secure Domo API keys in my Next.js application?

Store them in environment variables and use backend API routes to prevent exposure in the frontend.

2. Why is my embedded Domo dashboard not displaying in Next.js?

Check iframe security settings, ensure the correct embed URL format, and use JWT authentication for private dashboards.

3. How do I handle large datasets when fetching data from Domo?

Use server-side data fetching, implement pagination, and cache responses to reduce redundant API calls.

4. What is the best way to prevent CORS issues when fetching data from Domo?

Use a backend API route to proxy requests and ensure correct CORS headers are set in the response.

5. Can I use Next.js API routes to prefetch and transform Domo data?

Yes, Next.js API routes can act as middleware to fetch, process, and format data before sending it to the frontend.