Janet lambda example

Example project to demo https://github.com/johanwiren/janet-lambda-runtime

Requirements

• Docker (to build using AWS provided.al2023)
• AWS SAM cli (optional, scroll down)

Usage (with SAM cli)

Note that this example uses arm64. If you are on x86_64 you will need to update template.yaml

Build the project

sam build

SAM will invoke make, which in turn starts a docker build that eventually runs jpm build --local.

Deploy the project

sam deploy

...
...
...

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Outputs                                                                                                                                                                       
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Key                 HelloWorldFunctionIamRole                                                                                                                                 
Description         Implicit IAM Role created for Hello World function                                                                                                        
Value               arn:aws:iam::427536279568:role/janet-lambda-example-HelloWorldFunctionRole-utxeeqp8sMA3                                                                   

Key                 HelloWorldApi                                                                                                                                             
Description         API Gateway endpoint URL for Prod stage for Hello World function                                                                                          
Value               https://z8xv7bc8e9.execute-api.eu-north-1.amazonaws.com/hello                                                                                            

Key                 HelloWorldFunction                                                                                                                                        
Description         Hello World Lambda Function ARN                                                                                                                           
Value               arn:aws:lambda:eu-north-1:427536279568:function:janet-lambda-example-HelloWorldFunction-KsmjbbtvOZQC                                                      
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Successfully created/updated stack - janet-lambda-example in eu-north-1

Invoke the API url

Find the URL (HelloWorldApi) in the above outputs from sam deploy

curl https://z8xv7bc8e9.execute-api.eu-north-1.amazonaws.com/hello

Wohoo, we now have a serverless api backed by a Janet lambda function!

Usage (just build the lambda please)

Ok, but I don't want all the bells and whistles using SAM.

Fine, then just run

make

This will produce a build/bootstrap that can be used with the provided.al2023 runtime on lambda.