02-advanced-hello-world-api

Example 02 - Advanced Hello World API

This example implements a slightly advanced version of the previous simple Hello World API using AWS Lambda and AWS API Gateway.

As in the previous example, the API will respond to GET requests returning:

{"message":"Hello World"}

But, if you specify a name option in the query string parameter, the World part of the message will be replaced with the name you provided. E.g. if you pass ?name=Podge then the API will respond with:

{"message":"Hello Podge"}

Goal

The goal of this exercise is to learn how to use query string parameters in API Lambdas.

Test locally

With aws-sam-local installed and your shell in this project folder (lessons/02-advanced-hello-world-api/), run:

sam local invoke HelloWorldApiAdvanced -e sample-event.json

Deploy on AWS

You can deploy on your AWS account with the following commands using AWS cli:

export BUCKET=your-unique-bucket-name
export STACK_NAME=advanced-hello-world

sam package --template-file template.yaml --s3-bucket $BUCKET --output-template-file packaged-template.yaml

sam deploy --template-file packaged-template.yaml --stack-name $STACK_NAME --capabilities CAPABILITY_IAM

Be sure to replace the value of BUCKET with your own unique bucket name

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