We'll use the simple calculator JavaScript code available on the book's GitHub repository and deploy it to Cloud Functions:
- Navigate to the /Chapter01/calculator folder. The application code is present in index.js and the dependencies in the package.json file. As there are no dependencies for this function, the package.json file is a basic skeleton needed for the deployment.
- The main function receives the input via the request object, validates the inputs and performs the calculation. The calculated result is then sent back to the requester via the response object and an appropriate HTTP status code. In the following code, the switch statement does the core processing of the calculator, do spend some time on it to understand ...
