Use Azure Functions to forward data to the Log visit endpoint.

Azure Functions allows you to run JavaScript (Node.js) code in a serverless environment that can be triggered by HTTP requests. Read the official documentation for more details.

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Setup

  1. Create an Azure Function App in your preferred region.
  2. Create an HTTP triggered function.
  3. Set up the HALL_API_KEY application setting with your Hall API key.

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Example

The example below demonstrates how to forward data from incoming requests using Azure Functions.

function.js
module.exports = async function (context, req) {
    const requestPath = req.originalUrl;
    const requestMethod = req.method;

    const headers = req.headers
    const requestIp = headers['x-forwarded-for']?.split(',')[0] || 
                     headers['x-azure-clientip'] || 
                     context.req.ip;

    const requestHeaders = {
        'User-Agent': headers['user-agent'] || '',
        'Host': headers['host'] || '',
        'Referer': headers['referer'] || '',
    }

    fetch('https://analytics.usehall.com/visit', {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'Authorization': `Bearer ${process.env.HALL_API_KEY}`,
        },
        body: JSON.stringify({
            request_path: requestPath,
            request_method: requestMethod,
            request_ip: requestIp,
            request_headers: requestHeaders,
            request_timestamp: Date.now(),
        }),
    });

    return req;
};

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Deployment

To deploy this function, follow the Azure Functions deployment guide in the Azure documentation.