Learn Serverless-framework - 4 Code Examples & CST Typing Practice Test

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.

View all 4 Serverless-framework code examples →

Simple Serverless Function (Node.js)Simple Serverless Function (Python)Simple Serverless Function (Go)Simple Serverless Function (Java)

Learn SERVERLESS-FRAMEWORK with Real Code Examples

Updated Nov 27, 2025

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Code Sample Descriptions

Simple Serverless Function (Node.js)

# serverless/demo_nodejs/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: nodejs14.x
functions:
    hello:
        handler: handler.hello
        events:
        - http:
        path: hello
        method: get

# serverless/demo_nodejs/handler.js
'use strict';
module.exports.hello = async (event) => {
    return {
        statusCode: 200,
        body: JSON.stringify({ message: 'Hello World' })
    };
};

A simple Serverless Framework Node.js function responding to HTTP events.

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Simple Serverless Function (Python)

# serverless/demo_python/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: python3.9
functions:
    hello:
        handler: handler.hello
        events:
        - http:
        path: hello
        method: get

# serverless/demo_python/handler.py
import json

def hello(event, context):
    return {
        'statusCode': 200,
        'body': json.dumps({'message': 'Hello World'})
    }

A simple Serverless Framework Python function responding to HTTP events.

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Simple Serverless Function (Go)

# serverless/demo_go/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: go1.x
functions:
    hello:
        handler: bin/handler
        events:
        - http:
        path: hello
        method: get

# serverless/demo_go/handler/main.go
package main
import (
    "context"
    "github.com/aws/aws-lambda-go/events"
    "github.com/aws/aws-lambda-go/lambda"
)
func handler(ctx context.Context, request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
    return events.APIGatewayProxyResponse{
        StatusCode: 200,
        Body: "Hello World",
    }, nil
}
func main() {
    lambda.Start(handler)
}

A simple Serverless Framework Go function responding to HTTP events.

Let’s Try →

Simple Serverless Function (Java)

# 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";
    }
}

A simple Serverless Framework Java function responding to HTTP events.

Let’s Try →

Frequently Asked Questions about Serverless-framework

What is Serverless-framework?

What are the primary use cases for Serverless-framework?

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

What are the strengths of Serverless-framework?

Rapid deployment and scaling of serverless applications. Provider-agnostic multi-cloud support. Simplifies complex cloud infrastructure. Strong community and plugin ecosystem. Good documentation and active development

What are the limitations of Serverless-framework?

Requires learning YAML and serverless concepts. Debugging complex deployments can be tricky. Performance tied to underlying cloud provider. Some advanced multi-cloud scenarios may be challenging. Can abstract too much, making low-level tuning harder

How can I practice Serverless-framework typing speed?

CodeSpeedTest offers 4+ real Serverless-framework code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.

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Learn Serverless-framework - 4 Code Examples & CST Typing Practice Test

Code Sample Descriptions

Simple Serverless Function (Node.js)

# serverless/demo_nodejs/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: nodejs14.x
functions:
    hello:
        handler: handler.hello
        events:
        - http:
        path: hello
        method: get

# serverless/demo_nodejs/handler.js
'use strict';
module.exports.hello = async (event) => {
    return {
        statusCode: 200,
        body: JSON.stringify({ message: 'Hello World' })
    };
};

A simple Serverless Framework Node.js function responding to HTTP events.

Let’s Try →

Simple Serverless Function (Python)

# serverless/demo_python/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: python3.9
functions:
    hello:
        handler: handler.hello
        events:
        - http:
        path: hello
        method: get

# serverless/demo_python/handler.py
import json

def hello(event, context):
    return {
        'statusCode': 200,
        'body': json.dumps({'message': 'Hello World'})
    }

A simple Serverless Framework Python function responding to HTTP events.

Let’s Try →

Simple Serverless Function (Go)

# serverless/demo_go/serverless.yml
service: hello-world
provider:
    name: aws
    runtime: go1.x
functions:
    hello:
        handler: bin/handler
        events:
        - http:
        path: hello
        method: get

# serverless/demo_go/handler/main.go
package main
import (
    "context"
    "github.com/aws/aws-lambda-go/events"
    "github.com/aws/aws-lambda-go/lambda"
)
func handler(ctx context.Context, request events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
    return events.APIGatewayProxyResponse{
        StatusCode: 200,
        Body: "Hello World",
    }, nil
}
func main() {
    lambda.Start(handler)
}

A simple Serverless Framework Go function responding to HTTP events.

Let’s Try →

Simple Serverless Function (Java)

# 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";
    }
}

A simple Serverless Framework Java function responding to HTTP events.

Let’s Try →

Frequently Asked Questions about Serverless-framework

What is Serverless-framework?

What are the primary use cases for Serverless-framework?

What are the strengths of Serverless-framework?

What are the limitations of Serverless-framework?

How can I practice Serverless-framework typing speed?

CodeSpeedTest offers 4+ real Serverless-framework code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.