How to Create Webhooks in Shopify: Step-by-Step Tutorial | Shopify Tutorial

Webhooks are an essential feature in Shopify that allow developers to receive real-time notifications about events occurring within a Shopify store. Whether you’re looking to automate processes, integrate third-party services, or keep your app updated with the latest information, webhooks provide a powerful tool to enhance the functionality of your Shopify store. This step-by-step tutorial will guide you through the process of creating webhooks in Shopify, explaining the benefits of using webhooks and how to set them up using the Shopify Admin interface and the Shopify API.

What are Shopify Webhooks?

Before diving into the tutorial, it’s important to understand what webhooks are and why they are useful in Shopify development:

• Webhooks: Webhooks are automated messages sent from apps when something happens. They are like SMS notifications that get sent to a specific URL when an event triggers them.
• Real-Time Updates: Webhooks provide real-time data updates, allowing you to react immediately to changes in your store, such as new orders, product updates, or customer interactions.
• Automation: With webhooks, you can automate processes like updating inventory, sending order confirmations to other systems, or even triggering custom workflows based on specific events.

Why Use Webhooks in Shopify?

Using webhooks in Shopify has several benefits:

• Instant Notifications: Webhooks notify your app as soon as an event occurs, reducing the need for constant polling of Shopify’s API.
• Efficient Data Handling: Webhooks allow your app to handle data efficiently, processing only the events that are relevant to your business.
• Integration: Webhooks make it easy to integrate Shopify with external systems, such as CRMs, ERPs, or other third-party services.

Step 1: Setting Up Webhooks in Shopify Admin

Shopify makes it easy to create webhooks directly from the Shopify Admin interface. This is especially useful for beginners who may not be comfortable working with the Shopify API yet.

Create a Webhook in Shopify Admin

1. Log in to Shopify Admin: Start by logging into your Shopify store’s admin panel.
2. Navigate to Notifications: In the left-hand sidebar, click on “Settings” and then “Notifications.”
3. Create a Webhook: Scroll down to the “Webhooks” section and click on “Create Webhook.”
4. Configure Webhook Settings:
   • Event: Choose the event you want to listen to, such as “Order Creation,” “Product Update,” or “Customer Creation.”
   • Format: Select the format of the data, typically JSON.
   • URL: Enter the URL where you want the webhook data to be sent. This should be an endpoint in your application that can handle the incoming webhook data.
5. Save Webhook: Click “Save” to create the webhook.

Testing the Webhook

After creating the webhook, you can test it by performing the action that triggers the event. For example, if you created a webhook for “Order Creation,” place a test order in your store. Your application should receive a POST request to the URL you specified, containing the order data in JSON format.

Step 2: Creating Webhooks Programmatically Using Shopify API

For more advanced use cases, you might want to create webhooks programmatically using the Shopify API. This approach gives you greater flexibility and allows you to manage webhooks directly within your app.

Set Up Your Development Environment

First, ensure that you have Node.js and npm installed. Then, create a new Node.js project:

bashCopy codemkdir shopify-webhooks
cd shopify-webhooks
npm init -y

Install the necessary dependencies:

bashCopy codenpm install axios dotenv

• axios: A promise-based HTTP client for making API requests.
• dotenv: A module to load environment variables from a .env file.

Configure Environment Variables

Create a .env file in your project’s root directory to store sensitive information:

bashCopy codeSHOPIFY_API_KEY=your-api-key
SHOPIFY_API_SECRET=your-api-secret
SHOPIFY_ACCESS_TOKEN=your-access-token
SHOPIFY_STORE=my-shop-name.myshopify.com

Create the Webhook Programmatically

Create a new file named createWebhook.js and add the following code:

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

const createWebhook = async () => {
  const url = `https://${process.env.SHOPIFY_STORE}/admin/api/2023-01/webhooks.json`;
  const webhookData = {
    webhook: {
      topic: 'orders/create',
      address: 'https://your-domain.com/webhooks/orders/create',
      format: 'json'
    }
  };

  try {
    const response = await axios.post(url, webhookData, {
      headers: {
        'X-Shopify-Access-Token': process.env.SHOPIFY_ACCESS_TOKEN,
        'Content-Type': 'application/json'
      }
    });
    console.log('Webhook created successfully:', response.data.webhook);
  } catch (error) {
    console.error('Error creating webhook:', error.response ? error.response.data : error.message);
  }
};

createWebhook();

In this script:

• axios.post(): Sends a POST request to the Shopify API to create a new webhook.
• webhookData: Specifies the topic (event type), the address (URL where the webhook data should be sent), and the format (JSON).

Run the script to create the webhook:

bashCopy codenode createWebhook.js

Step 3: Handling Webhooks in Your Application

Once a webhook is created, you need to handle the incoming data. Typically, this involves setting up an endpoint in your application to receive and process the webhook payload.

Create a Webhook Endpoint

Here’s how you can set up a basic Express server to handle Shopify webhooks:

1. Install Express:bashCopy codenpm install express body-parser
2. Create the Webhook Server:Create a file named server.js and add the following code:javascriptCopy codeconst express = require('express'); const bodyParser = require('body-parser'); const app = express(); const port = process.env.PORT || 3000; app.use(bodyParser.json()); app.post('/webhooks/orders/create', (req, res) => { console.log('Received webhook:', req.body); res.status(200).send('Webhook received'); }); app.listen(port, () => { console.log(`Server running on port ${port}`); });
3. Run the Server:Start your server by running:bashCopy codenode server.js

Your server will now listen for incoming POST requests at /webhooks/orders/create. When an order is created in Shopify, the webhook will trigger, and the order data will be logged to the console.

Step 4: Securing Your Webhooks

It’s crucial to secure your webhooks to ensure that the data sent to your application is coming from Shopify and not a malicious source.

Verify Webhook Signature

Shopify sends a HMAC (Hash-Based Message Authentication Code) along with the webhook to verify its authenticity. You can validate this signature in your webhook handler:

javascriptCopy codeconst crypto = require('crypto');

const verifyWebhook = (req, res, next) => {
  const hmac = req.headers['x-shopify-hmac-sha256'];
  const body = JSON.stringify(req.body);
  const hash = crypto
    .createHmac('sha256', process.env.SHOPIFY_API_SECRET)
    .update(body, 'utf8')
    .digest('base64');

  if (hash === hmac) {
    next();
  } else {
    res.status(401).send('Unauthorized');
  }
};

app.post('/webhooks/orders/create', verifyWebhook, (req, res) => {
  console.log('Verified webhook received:', req.body);
  res.status(200).send('Webhook received');
});

In this code:

• verifyWebhook: A middleware function that verifies the HMAC signature to ensure the request is authentic.

Conclusion

By following this tutorial, you’ve learned how to create webhooks in Shopify using both the Shopify Admin interface and the Shopify API. Webhooks are a powerful tool for automating processes, integrating with external systems, and ensuring your application remains up-to-date with real-time data. Whether you’re building a custom Shopify app, integrating with third-party services, or simply automating routine tasks, mastering webhooks will significantly enhance your Shopify development skills.

As you continue to develop with Shopify, keep exploring new ways to leverage webhooks for more efficient and responsive applications. With the ability to react instantly to events in your store, you can create a more dynamic and integrated e-commerce experience for your users.