Step by Step Guide to Building a Kajabi API Integration in JS

Introduction

Hey there, fellow developer! Ready to dive into the world of Kajabi API integration? You're in for a treat. We'll be walking through the process of building a robust integration that'll have you manipulating Kajabi data like a pro. Let's get cracking!

Prerequisites

Before we jump in, make sure you've got:

• A Kajabi account with API access (duh!)
• Node.js and npm installed on your machine
• A solid grasp of JavaScript and REST APIs

Got all that? Great! Let's move on.

Setting up the project

First things first, let's get our project off the ground:

mkdir kajabi-integration
cd kajabi-integration
npm init -y
npm install axios dotenv

Easy peasy, right? We're using axios for HTTP requests and dotenv to manage our environment variables.

Authentication

Alright, time to get our hands dirty with OAuth 2.0. Head over to your Kajabi account and grab those API credentials. Then, create a .env file:

KAJABI_CLIENT_ID=your_client_id
KAJABI_CLIENT_SECRET=your_client_secret

Now, let's implement the OAuth flow:

const axios = require('axios');
require('dotenv').config();

async function getAccessToken() {
  const response = await axios.post('https://kajabi.com/oauth/token', {
    grant_type: 'client_credentials',
    client_id: process.env.KAJABI_CLIENT_ID,
    client_secret: process.env.KAJABI_CLIENT_SECRET
  });
  return response.data.access_token;
}

Making API requests

With our access token in hand, let's start making some requests:

const baseURL = 'https://kajabi.com/api/v1';

async function getCourses() {
  const token = await getAccessToken();
  const response = await axios.get(`${baseURL}/courses`, {
    headers: { Authorization: `Bearer ${token}` }
  });
  return response.data;
}

async function createProduct(productData) {
  const token = await getAccessToken();
  const response = await axios.post(`${baseURL}/products`, productData, {
    headers: { Authorization: `Bearer ${token}` }
  });
  return response.data;
}

Error handling and rate limiting

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

async function makeApiRequest(method, endpoint, data = null) {
  try {
    const token = await getAccessToken();
    const response = await axios({
      method,
      url: `${baseURL}${endpoint}`,
      data,
      headers: { Authorization: `Bearer ${token}` }
    });
    return response.data;
  } catch (error) {
    if (error.response && error.response.status === 429) {
      // Handle rate limiting
      console.log('Rate limit exceeded. Retrying after cooldown...');
      await new Promise(resolve => setTimeout(resolve, 60000));
      return makeApiRequest(method, endpoint, data);
    }
    throw error;
  }
}

Webhooks

If you're feeling fancy, let's set up a webhook endpoint:

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

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

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

Testing the integration

Time to put our code through its paces:

const { expect } = require('chai');
const nock = require('nock');

describe('Kajabi API Integration', () => {
  it('should fetch courses', async () => {
    nock('https://kajabi.com')
      .get('/api/v1/courses')
      .reply(200, { courses: [] });

    const courses = await getCourses();
    expect(courses).to.deep.equal({ courses: [] });
  });
});

Best practices

A few pro tips to keep your integration running smoothly:

• Cache API responses to reduce unnecessary calls
• Implement robust logging for easier debugging
• Monitor your API usage to stay within limits

Conclusion

And there you have it! You've just built a slick Kajabi API integration. Remember, this is just the tip of the iceberg. There's a whole world of possibilities waiting for you in the Kajabi API docs. So go forth and integrate, you magnificent developer, you!

Happy coding!