aws-sdk-example

AWS SDK Example

Interact with AWS Services (S3 in this case) using the AWS NodeJS SDK, ClojureScript and the Lumo-cljs runtime.

Prerequisites

• a deployed Lumo-cljs runtime (we'll use arn:aws:lambda:eu-west-1:313836948343:layer:lumo-runtime:13)
• suitable credentials for AWS
• the aws-cli version 1.16 or newer
• NodeJS version 10 or newer and NPM

Create execution role (TODO)

• must be able to execute Lambdas
• must have read-access to S3

Create a Lambda

$ npm i # install aws sdk

$ zip -r function.zip aws_sdk_example node_modules

$ aws lambda create-function --function-name lumo-s3 --zip-file fileb://function.zip --handler aws-sdk-example.core/list-buckets --runtime provided --role arn:aws:iam::313836948343:role/lambda-role

Update the Lambda code (if needed)

$ aws lambda update-function-code --region eu-west-1  --function-name lumo-s3 --zip-file fileb://function.zip

Set the runtime for the Lambda

$ aws lambda update-function-configuration --function-name lumo-s3 --layers arn:aws:lambda:eu-west-1:313836948343:layer:lumo-runtime:13 --region eu-west-1

Invoke the Lambda

$ aws lambda invoke --function-name lumo-s3 --region eu-west-1 --payload '{}' response.txt 

$ cat response.txt

You should get back a json object with all (accesible) S3 buckets.