Reading and Writing Data Using the LearnWorlds API

Hey there, fellow JavaScript devs! Ready to dive into the world of LearnWorlds API integration? Let's get our hands dirty with some code and learn how to sync data for a user-facing integration. Buckle up!

Introduction

LearnWorlds API is your ticket to creating seamless integrations between your app and their powerful e-learning platform. We'll be focusing on reading and writing data to keep your users' information in sync. Trust me, it's easier than you might think!

Authentication

First things first, let's get you authenticated:

1. Grab your API credentials from the LearnWorlds dashboard.
2. If you're using OAuth 2.0, here's a quick implementation:

const axios = require('axios');

async function getAccessToken(clientId, clientSecret, code) {
  const response = await axios.post('https://api.learnworlds.com/oauth/token', {
    grant_type: 'authorization_code',
    client_id: clientId,
    client_secret: clientSecret,
    code: code,
  });
  return response.data.access_token;
}

Reading Data

Now that we're in, let's fetch some user info:

async function getUserInfo(userId, accessToken) {
  const response = await axios.get(`https://api.learnworlds.com/users/${userId}`, {
    headers: { Authorization: `Bearer ${accessToken}` },
  });
  return response.data;
}

Want to check course progress? No problem:

async function getCourseProgress(userId, courseId, accessToken) {
  const response = await axios.get(`https://api.learnworlds.com/progress/${userId}/${courseId}`, {
    headers: { Authorization: `Bearer ${accessToken}` },
  });
  return response.data;
}

Writing Data

Updating user profiles is a breeze:

async function updateUserProfile(userId, userData, accessToken) {
  const response = await axios.put(`https://api.learnworlds.com/users/${userId}`, userData, {
    headers: { Authorization: `Bearer ${accessToken}` },
  });
  return response.data;
}

Enrolling users in courses? Say no more:

async function enrollUserInCourse(userId, courseId, accessToken) {
  const response = await axios.post('https://api.learnworlds.com/enrollments', {
    user_id: userId,
    course_id: courseId,
  }, {
    headers: { Authorization: `Bearer ${accessToken}` },
  });
  return response.data;
}

Syncing Data

Real-time updates are where it's at. Let's set up a webhook listener:

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

app.post('/webhook', express.json(), (req, res) => {
  const event = req.body;
  // Process the webhook payload
  console.log('Received webhook:', event);
  // Your logic here
  res.sendStatus(200);
});

app.listen(3000, () => console.log('Webhook listener running on port 3000'));

Error Handling and Rate Limiting

Don't let errors catch you off guard. Here's a simple retry mechanism:

async function apiCallWithRetry(apiCall, maxRetries = 3) {
  for (let i = 0; i < maxRetries; i++) {
    try {
      return await apiCall();
    } catch (error) {
      if (i === maxRetries - 1) throw error;
      await new Promise(resolve => setTimeout(resolve, 1000 * Math.pow(2, i)));
    }
  }
}

And always respect those rate limits!

Optimizing Performance

Caching is your friend. Here's a simple in-memory cache:

const cache = new Map();

function getCachedData(key, ttl, fetchFunction) {
  if (cache.has(key) && Date.now() - cache.get(key).timestamp < ttl) {
    return cache.get(key).data;
  }
  const data = fetchFunction();
  cache.set(key, { data, timestamp: Date.now() });
  return data;
}

Security Considerations

Keep those API credentials safe! Use environment variables:

require('dotenv').config();
const apiKey = process.env.LEARNWORLDS_API_KEY;

And always validate those webhook signatures!

Testing and Debugging

Use the LearnWorlds API sandbox for testing. And don't forget to log those API calls:

axios.interceptors.request.use(request => {
  console.log('Starting Request', request)
  return request
})

Conclusion

There you have it! You're now equipped to build a robust LearnWorlds integration. Remember, practice makes perfect, so keep coding and experimenting. The LearnWorlds API documentation is your best friend for diving deeper.

Happy coding, and may your integrations be ever smooth and bug-free!