How to make a Shopify app/function call an Azure function?

To make a Shopify app call an Azure Function, you'll need to follow these steps:

Create an Azure Function:

• Set up an Azure Function in the Azure Portal or using the Azure CLI. You can choose a language you're comfortable with (e.g., JavaScript, C#, Python).

Here's an example using JavaScript:

module.exports = async function (context, req) {
    context.log('JavaScript HTTP trigger function processed a request.');
    const name = (req.query.name || (req.body && req.body.name));
    const responseMessage = name
        ? "Hello, " + name + ". This HTTP triggered function executed successfully."
        : "This HTTP triggered function executed successfully. Pass a name in the query string or in the request body for a personalized response.";

    context.res = {
        // status: 200, /* Defaults to 200 */
        body: responseMessage
    };
};

2. Deploy the Azure Function:

• Deploy your function to Azure. You can use the Azure Portal, Visual Studio Code, or the Azure CLI to deploy your function.

Example using Azure CLI:

func azure functionapp publish <YOUR_FUNCTION_APP_NAME>

3. Get the Function URL:

After deploying, get the function URL from the Azure Portal. It will look something like this:

https://<YOUR_FUNCTION_APP_NAME>.azurewebsites.net/api/<FUNCTION_NAME>?code=<FUNCTION_KEY>

4. Make the Call from Shopify App:

• In your Shopify app, use a library like Axios to make HTTP requests to the Azure Function.

Example using Axios in a Node.js/Express app:

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

app.use(express.json());

app.post('/call-azure-function', async (req, res) => {
    try {
        const response = await axios.post('https://<YOUR_FUNCTION_APP_NAME>.azurewebsites.net/api/<FUNCTION_NAME>?code=<FUNCTION_KEY>', {
            name: 'ShopifyUser'
        });

        res.status(200).send(response.data);
    } catch (error) {
        console.error('Error calling Azure Function:', error);
        res.status(500).send('Error calling Azure Function');
    }
});

app.listen(3000, () => {
    console.log('Server is running on port 3000');
});

5. Handle Authentication (if necessary):

• If your Azure Function requires authentication (e.g., using a function key), ensure you include the key in the query string or headers.

Example with headers:

const response = await axios.post('https://<YOUR_FUNCTION_APP_NAME>.azurewebsites.net/api/<FUNCTION_NAME>', {
    name: 'ShopifyUser'
}, {
    headers: {
        'x-functions-key': '<FUNCTION_KEY>'
    }
});

6. Test the Integration:

• Test your Shopify app by calling the endpoint you created (e.g., /call-azure-function) and ensure it successfully communicates with the Azure Function.

By following these steps, you can set up a Shopify app to call an Azure Function, allowing you to leverage Azure's serverless capabilities within your Shopify app.

For additional assistance with Shopify-related queries, consider reaching out to Shopify development experts at SDLC Corp.