Implementing a Go lambda is already more complicated than writing a function. It requires binding to a TCP port and receiving gob encoded values. AWS released a library that abstracts that into

    // main.go                                                                  
    package main                                                            

    import (                                                                
      "github.com/aws/aws-lambda-go/lambda"                                 
    )                                                                       

    func hello() (string, error) {                                          
      return "Hello ƛ!", nil                                                
    }                                                                       

    func main() {                                                           
      // Make the handler available for Remote Procedure Call by AWS Lambda 
      lambda.Start(hello)                                                   
    }

lambda.Start is the abstraction wrapper.