main.go

package main

import (
	"context"
	"log/slog"

	"github.com/aws/aws-lambda-go/events"
	"github.com/aws/aws-lambda-go/lambda"
	ginadapter "github.com/awslabs/aws-lambda-go-api-proxy/gin"
	"github.com/gin-contrib/cors"
	"github.com/gin-gonic/gin"
)

var ginLambda *ginadapter.GinLambda

func Handler(ctx context.Context, req events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
	if ginLambda == nil {
		slog.Info("Gin cold start")
		r := gin.Default()
		r.Use(gin.Logger())
		r.Use(gin.Recovery())
		r.Use(cors.Default())

		r.GET("/wakkason-demo-api/users", GetUsers)
		r.POST("/wakkason-demo-api/message", PostMessage)
		r.POST("/wakkason-demo-api/memory", PostMemory)

		ginLambda = ginadapter.New(r)
	}

	return ginLambda.ProxyWithContext(ctx, req)
}

func main() {
	lambda.Start(Handler)
}