Simple Serverless Function (Java) - Serverless-framework Typing CST Test
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Simple Serverless Function (Java) — Serverless-framework Code
A simple Serverless Framework Java function responding to HTTP events.
# serverless/demo_java/serverless.yml
service: hello-world
provider:
name: aws
runtime: java11
functions:
hello:
handler: com.example.Handler::handleRequest
# serverless/demo_java/src/main/java/com/example/Handler.java
package com.example;
import com.amazonaws.services.lambda.runtime.Context;
import com.amazonaws.services.lambda.runtime.RequestHandler;
import java.util.Map;
public class Handler implements RequestHandler<Map<String,Object>, String> {
@Override
public String handleRequest(Map<String,Object> input, Context context) {
return "Hello World";
}
}Serverless-framework Language Guide
Serverless Framework is an open-source framework for building and deploying serverless applications on cloud platforms like AWS, Azure, Google Cloud, and more. It abstracts infrastructure management, enabling developers to focus on code while handling deployment, scaling, and event integration automatically.
Primary Use Cases
- ▸Deploying AWS Lambda or equivalent functions
- ▸Building serverless REST/GraphQL APIs
- ▸Event-driven workflows using SQS, SNS, or EventBridge
- ▸Real-time data processing pipelines
- ▸Multi-cloud serverless applications
Notable Features
- ▸Multi-cloud provider support
- ▸Infrastructure-as-code YAML configuration
- ▸Extensible plugin ecosystem
- ▸Automatic deployment and rollback
- ▸Function-level permissions and configuration
Origin & Creator
Created by Austen Collins in 2015 as a way to simplify deploying serverless architectures, originally targeting AWS Lambda.
Industrial Note
Serverless Framework is widely used in enterprises and startups for rapid deployment of scalable, pay-per-use serverless systems, including APIs, event-processing pipelines, and backend services.