Run and debug Java AWS Lambda locally using SAM CLI commands and Docker in IntelliJ Idea

Quick Note: When you send a request via postman in JSON format, the JSON format will be converted to a stringify format by API gateway(in case of lambda proxy integration) and that will be passed on to lambda.

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[Userabj]

very informative. thanks brother ✅️✅️🙏

[hmahant]

Very well explained! Keep up the good work

[SURA]

Do we need to manually create the SAM template or any tool which can help in generating based on the CDK stack we build using code ?

I came to know that we can download the particular Lambda function as SAM template in AWS console using the below option

Land into AWS Lambda console and "Actions" dropdown > "Export Function" > "Download AWS SAM file"

I could not find any option to export the whole stack . I will appreciate if you could help me on this

[monikavaid]

Hi, I am trying the exact same procedure but I am facing "FileNotFoundError: [Errno 2] No such file or directory: 'event.json'". Can anyone help?

[smahuja]

Hi, Thanks for sharing, very well explained
I followed each and every step, but while running from postman I am getting 500 Internal Server Error :

END RequestId:
REPORT RequestId: Init Duration: 0.17 ms Duration: 4254.92 ms Billed Duration: 4300 ms Memory Size: 512 MB Max Memory Used: 512 MB
Lambda returned empty body!
No Content-Type given. Defaulting to 'application/json'.

Before calling Service().getResponse(input)
in LambdaHandler
I printed input.getBody(), its coming null

Any help, would be much appreciated.
thanks

[abhisheksinghal]

Hi Sarang,
Thanks for such an informative video, taht what exactly i was looking for as i am learning Serverless Lambda's .
Following the video, but having the below error when i run "sam local invoke LambdaFunction -t template.yaml -e event.json"

Error loading class lambda.Handler:

at Method)
at
Caused by:
at
at
at
... 2 more

Below are the dependencies i am using in my gradle project
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.12'
compile group: 'com.amazonaws', name: 'aws-java-sdk', version: '1.2.1'
//compile group: 'com.amazonaws', name: 'aws-java-sdk-core', version: '1.11.28'
compile group: 'com.google.code.gson', name: 'gson', version: '2.3.1'
implementation
implementation
compile group: 'com.amazonaws', name: 'aws-java-sdk-sqs', version: '1.11.891'
}
Could you help ?