Serverless Framework for AWS Lambda - Java + DynamoDB Example

How to use Serverless Framework

• Create a new Serverless Service:

  • serverless create --template aws-java-gradle --path my-service
  • Available templates: aws-nodejs, aws-python, aws-java-maven, aws-java-gradle, aws-scala-sbt

• Deploy Function:

  • Use this to quickly upload and overwrite your AWS Lambda code on AWS, allowing you to develop faster.
  • serverless deploy function -f myfunction

• Invoke a Function:

  • Invokes an AWS Lambda Function on AWS and returns logs.
  • serverless invoke -f hello -l

How to use this example

• Create and export your AWS access keys:

  • Create AWS credentials
  • Export AWS_SECRET_ACCESS_KEY and AWS_ACCESS_KEY_ID
  • export AWS_ACCESS_KEY=ABCDEFGHIJK****
  • export AWS_SECRET_ACCESS_KEY=+KAABCDEFGH/IJK*******

• Build zip file

  • gradle clean buildZip

• Deploy Funktion

  • Lambda function will be deployed
  • DynamoDB will be created
  • serverless deploy

• Invoke function to create dataset (POST)

• serverless invoke -f createRating --path data.json

• Invoke function to get all dataset with chargeStationId from data.json (GET)

• serverless invoke -f getRating --path data.json