This code defines a Google Cloud Function that, when triggered, creates a copy of a "study sauce template" based on provided parameters and sends the result back to the requester.

Run example

npm run import -- "test google express rpc handler"

test google express rpc handler

var importer = require('../Core');
var {handler} = importer.import("google cloud function rpc wrapper");

if(typeof $ !== 'undefined') {
    $.async();
    handler({
        headers: {origin: 'google.com'},
        get: r => null,
        query: {
            function: 'create a copy of study sauce template',
            email: 'megamindbrian@gmail.com'
        }
    }, {
        getHeader: h => {},
        setHeader: h => console.log(`header ${h}`),
        status: s => console.log(`status ${s}`),
        send: r => console.log(r)
    })
        .then(r => $.sendResult(r))
        .catch(e => $.sendError(e))
}

// Import required modules
const { importer, googleCloudFunctionWrapper } = require('../Core');

/**
 * Initialize the Google Cloud Function RPC wrapper.
 * @type {Function}
 */
const handler = googleCloudFunctionWrapper.import();

if (typeof $!== 'undefined') {
    // Check if $ is a valid object and has an async method
    if (typeof $ === 'object' && typeof $['async'] === 'function') {
        // Call the async method to prepare the environment
        $['async']();

        // Handle the RPC request
        handler({
            // Request headers
            headers: { origin: 'google.com' },
            // A null response for the 'get' request
            get: () => null,
            // Request query parameters
            query: {
                function: 'create a copy of study sauce template',
                email:'megamindbrian@gmail.com'
            }
        }, {
            // Custom response handler
            getHeader: (header) => {
                // Log the received header
                console.log(`Received header: ${header}`);
            },
            // Custom header setter
            setHeader: (header) => {
                // Log the set header
                console.log(`Set header: ${header}`);
            },
            // Custom status handler
            status: (status) => {
                // Log the received status
                console.log(`Received status: ${status}`);
            },
            // Custom response sender
            send: (response) => {
                // Log the sent response
                console.log('Sent response:', response);
            }
        })
       .then((response) => {
            // Send the response result
            $['sendResult'](response);
        })
       .catch((error) => {
            // Send the error
            $['sendError'](error);
        });
    } else {
        // Log an error if $ is not a valid object
        console.error('Invalid $ object');
    }
} else {
    // Log an error if $ is not defined
    console.error('$ is not defined');
}

This code snippet appears to be a Google Cloud Function handler that responds to a request to create a copy of a "study sauce template" and sends the result back to the caller.

Here's a breakdown:

1. Imports:

   • Imports necessary modules for interacting with the Google Cloud Function environment and handling requests.

2. Conditional Execution:

   • Checks if a variable $ exists. This likely indicates an environment variable or a special object provided by the Cloud Function runtime. If it exists, the code proceeds to execute the handler logic.

3. Handler Function:

   • Defines a handler function that takes two arguments:
     • req: The incoming request object containing headers, query parameters, and other relevant information.
     • res: An object with methods for setting headers, status codes, and sending responses.
   • Extracts the function and email parameters from the request query.
   • Calls a function handler (imported from google cloud function rpc wrapper) with the request object and a custom response handler.

4. Response Handling:

   • The handler function likely performs the actual logic to create a copy of the template and returns a response.
   • The .then() block handles the successful response, sending it back to the caller using $.sendResult().
   • The .catch() block handles any errors, sending an error response using $.sendError().