example

Example

This example demonstrates how to deploy a single function using Serverless that handles API Gateway proxy integration, API Gateway HTTP V2 and ALB target group events. The basic handler is defined in main.go and the event handlers are specified in serverless.yml.

Deploy

The following steps can be used to deploy the function to AWS. Please be aware that this may incur AWS costs.

• Install Serverless using npm install -g serverless.
• Create a set of AWS access keys and configure them for use with Serverless.
• Run make deploy to build and deploy the handler

Invoke

The Lambda function can be invoked via either the ALB DNS record or the API Gateway endpoints.

• Copy the API Gateway endpoint from the serveress output
• Invoke the function using API Gateway proxy integration events, e.g. curl https://{value}.execute-api.eu-west-1.amazonaws.com/dev/resource?a=1
• Invoke the function using API Gateway HTTP V2 events, e.g. curl https://{value}.execute-api.eu-west-1.amazonaws.com/resource?a=1
• Get the ALB DNS, e.g. aws cloudformation describe-stacks --region eu-west-1 --stack-name rack-example-dev | grep elb.amazonaws.com
• Invoke the function using the ALB Target Group, e.g. curl rack-example-dev-{value}.eu-west-1.elb.amazonaws.com/resource?a=1

Remove

• Run make remove to delete the CloudFormation stack and clean the working directory