What is the function of Google Cloud's API Gateway?

The function of Google Cloud's API Gateway is to manage and secure API traffic for applications. This service acts as a centralized entry point for API calls, enabling developers to create, publish, and monitor APIs with ease. By using API Gateway, organizations can enforce security policies, handle traffic management, and monitor the usage of their APIs, ensuring that applications communicate efficiently and securely.

API Gateway streamlines the process of managing and securing APIs, which is essential in modern application development. It supports features such as authentication and access control, which help in safeguarding the APIs from unauthorized access. Additionally, it offers capabilities for logging and monitoring, which provide insights into the performance and usage of the APIs, allowing for better maintenance and scaling as required.

The other options focus on functionalities that are not the primary purpose of the API Gateway. For instance, while serverless functions are relevant to Google Cloud, the API Gateway is not limited to managing them, as its role is broader in terms of API management and security. Storing large amounts of unstructured data relates to services like Google Cloud Storage rather than API management. Deploying machine learning models pertains to tools and services like Vertex AI, which is separate from the functionality provided by API Gateway.