Deploy Go on AWS Lambda

It is quite simple to deploy the go function on the AWS Lambda using Aws Lambda Go. I'll demonstrate the lambda function using a simple request as input for lambda and return Ok response for this example.

Steps

1. Get the aws lambda tool using.

      go get -u github.com/aws/aws-lambda-go/cmd/build-lambda-zip

2. Create your lambda function.

   // main.go
   package main
   
   import (
   	"fmt"
   
   	"github.com/aws/aws-lambda-go/lambda"
   )
   
   type Request struct {
   	ID    float64 `json:"id"`
   	Value string  `json:"value"`
   }
   
   type Response struct {
   	Message string `json:"message"`
   	Ok      bool   `json:"ok"`
   }
   
   func Handler(request Request) (Response, error) {
   	return Response{
   		Message: fmt.Sprintf("Process Request ID %f", request.ID),
   		Ok:      true,
   	}, nil
   }
   
   func main() {
   	// Make the handler available for Remote Procedure Call by AWS Lambda
   	lambda.Start(Handler)
   }

3. Build your lambda function for linux

   GOOS=linux go build -o main

4. Set required permission for execution

   sudo chmod +x main

5. Zip the build

   zip -9 main.zip main

6. Upload to lambda and test using the following event argument.

   {
   	"id": 123,
   	"value": "This is a test value"
   }

   It gives us the following response.

   {
     "message": "Process Request ID 123.000000",
     "ok": true
   }

Further Reading

• What is AWS Lambda
• Working with AWS Lambda Functions
• AWS Lambda Programming Model
• AWS Lambda Applications
• AWS Lambda Go Repository

TLDR; The link to my medium article.