What is Serverless Computing and How Does it Work?

What is Serverless Computing and How Does it Work?

Serverless computing is a cloud computing model where application developers do not have to deal with servers to host and run their code, unlike traditional server-based infrastructure. In this model, the provider managing the infrastructure takes care of servers, allowing developers to focus solely on their code.

How Does Serverless Computing Work?

The operation of serverless computing involves the following steps:

Application Developer Writes Code: The application developer begins by writing functional code. This code is typically broken down into functions and presented as a series of small, independent functions.

Cloud Provider Allocates Server Resources to User: The application developer selects a cloud provider to host their code. This provider automatically allocates server resources based on the requirements of the application.

Functions are Paired with Triggers: Each function is paired with a trigger. For example, HTTP requests, file changes, or timers can trigger functions.

Functions Automatically Scale: Functions are executed only when triggered by events. Therefore, functions automatically scale up or down according to requirements during high-traffic situations.

Application Developer Pays Only for Used Resources: In the serverless model, the application developer pays only for the resources they use. There are no fixed costs for servers or management overhead.

Benefits

Serverless computing offers several benefits:

• Cost Savings: Payment is made only for the resources used, optimizing costs.
• Scalability: Functions are executed only when triggered, and they automatically scale.
• Faster Development Processes: Since there is no need to manage infrastructure, application development processes accelerate.

Serverless computing is a popular choice in modern application development processes, and its adoption is expected to increase further in the future.