100 // Gradle< Kotlin, DynamoDB, Lambda, SAM minimal example

* Informal Description:

Technology Involved:
Gradle, Kotlin, AWS DynamoDB/Lambda/SAM

We are going to implement a basic counter where:
* state is stored in DynamoDB
* using Kotlin, we implemented AWS Lambda endpoints for
/get ==> returns counter state from dynamodb
/inc ==> incs counter state in dynamodb, returns latest
/dec ==> decs counter state in dynamodb, returns latest

In order to run this both locally and remotely, we are going
to setup a AWS SAM config so we can either (1) run locally or
(2) deploy remotely.


* Deliverables

1. You need to setup an account at https://aws.amazon.com/free/

2. Kotlin code:
implements AWS Lambda handlers for:
2a. /get (returns current counter state from DynamoDB)
2b. /inc (incs counter in DynamoDB, returns latest)
2c. /dec (incs counter in DynamoDB, returns latest)

3. Gradle config:
Packages Kotlikn code into *.jar for AWS Lambda

4. SAM config:
4a. local deploy (runs application locally)
4b. remote deploy (deploys on AWS)

5. one lihe CURL scripts for
/get, /inc, /dec
(for showing everything works)


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About the recuiter
Member since May 20, 2018
Shandy Pratama
from Miranda, Venezuela

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