verifyAuthChallengeResponse.go

package main

import (
	"context"
	"errors"
	"fmt"
	"log"

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

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

type Req map[string]interface{}

func verifyAuthChallengeResponse(ctx context.Context, req Req) (interface{}, error) {
	fmt.Println("called verify auth challenge response")

	for k, v := range req {
		log.Println(fmt.Sprintf("%s => %v", k, v))
	}

	request, isErr := req["request"].(map[string]interface{})
	if !isErr {
		return nil, errors.New("cannot convert request")
	}

	privateChallengeParameters := request["privateChallengeParameters"].(map[string]interface{})
	answer := privateChallengeParameters["answer"].(string)
	challengeAnswer := request["challengeAnswer"].(string)

	res, isErr := req["response"].(map[string]interface{})
	if !isErr {
		return nil, errors.New("cannot convert response")
	}

	log.Printf("answer: %v", answer == challengeAnswer)
	res["answerCorrect"] = answer == challengeAnswer

	req["response"] = res
	return req, nil
}