Simple Node.JS Lambda Function to output the HTTP request parameters in JSON format

requestDebugger.js

export const handler = async (event) => {
    // Extract useful information from the event object
    const { 
        httpMethod, 
        headers = {}, 
        queryStringParameters = {}, 
        path, 
        body, 
        requestContext: { 
            identity: { sourceIp, userAgent } = {} 
        } = {}
    } = event;

    // Convert headers object into an array of key-value pairs for easier readability
    const headersArray = Object.entries(headers).map(([key, value]) => {
        return `${key}: ${value}`;
    });

    // Prepare a human-friendly response
    const response = {
        statusCode: 200,
        headers: {
            "Content-Type": "application/json",
        },
        body: JSON.stringify({
            message: "HTTP Request Information V2",
            method: httpMethod,
            path: path,
            headers: headersArray, // Unpacked headers as an array of key-value pairs
            queryStringParameters: queryStringParameters,
            body: body,
            sourceIp: sourceIp,
            userAgent: userAgent
        }, null, 2) // Pretty-print JSON with 2-space indentation
    };

    return response;
};