'How to create a nodejs AWS lambda function locally using vscode and not serverless or SAM CLI?

I've go through hundreds of blogs/videos/resources but nowhere it mentions how to create a simple lambda function for Nodejs REST API locally using vscode, AWS toolkit extension and AWS cli. Is there any way where I can create a simple nodejs endpoint on my local and run using above and not serverless or SAM?( There's some internal restrictions hence I can't use them)

node.jsaws-lambda


Solution 1:[1]

What you need is to set up a API gateway and event trigger for your lambda that triggers whenever a HTTP request comes in. So here are steps

  1. Look into serverless framwork where you will define a serverless.yaml file that will have configuration to mention how your lambda will get invoked (In this case, its a HTTP event)
  2. In your IDE of choice, use serverless-offline npm package
  3. Your IDE config will look something like this (This example uses IntelliJ IDE) IDE config to start up Lambda in local
  4. Once you start up the service in local, you should be able to hit the REST endpoint in local using any rest client like Postman
  5. Instead of (4) above you could also directly invoke your lambda function in local using AWS CLI like aws lambda invoke /dev/null \ --endpoint-url http://localhost:3002 \ --function-name <Your lambda function name> \ --payload '{<Your payload>}'

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Ajit R

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