event.json

{
  "resource": "/{proxy+}",
  "path": "/hello/world",
  "httpMethod": "POST",
  "headers": {
    "Accept": "*/*",
    "Accept-Encoding": "gzip, deflate",
    "cache-control": "no-cache",
    "CloudFront-Forwarded-Proto": "https",
    "CloudFront-Is-Desktop-Viewer": "true",
    "CloudFront-Is-Mobile-Viewer": "false",
    "CloudFront-Is-SmartTV-Viewer": "false",
    "CloudFront-Is-Tablet-Viewer": "false",
    "CloudFront-Viewer-Country": "US",
    "Content-Type": "application/json",
    "headerName": "headerValue",
    "Host": "gy415nuibc.execute-api.us-east-1.amazonaws.com",
    "Postman-Token": "9f583ef0-ed83-4a38-aef3-eb9ce3f7a57f",
    "User-Agent": "PostmanRuntime/2.4.5",
    "Via": "1.1 d98420743a69852491bbdea73f7680bd.cloudfront.net (CloudFront)",
    "X-Amz-Cf-Id": "pn-PWIJc6thYnZm5P0NMgOUglL1DYtl0gdeJky8tqsg8iS_sgsKD1A==",
    "X-Forwarded-For": "54.240.196.186, 54.182.214.83",
    "X-Forwarded-Port": "443",
    "X-Forwarded-Proto": "https"
  },
  "multiValueHeaders": {
    "Accept": [
      "*/*"
    ],
    "Accept-Encoding": [
      "gzip, deflate"
    ],
    "cache-control": [
      "no-cache"
    ],
    "CloudFront-Forwarded-Proto": [
      "https"
    ],
    "CloudFront-Is-Desktop-Viewer": [
      "true"
    ],
    "CloudFront-Is-Mobile-Viewer": [
      "false"
    ],
    "CloudFront-Is-SmartTV-Viewer": [
      "false"
    ],
    "CloudFront-Is-Tablet-Viewer": [
      "false"
    ],
    "CloudFront-Viewer-Country": [
      "US"
    ],
    "Content-Type": [
      "application/json"
    ],
    "headerName": [
      "headerValue"
    ],
    "Host": [
      "gy415nuibc.execute-api.us-east-1.amazonaws.com"
    ],
    "Postman-Token": [
      "9f583ef0-ed83-4a38-aef3-eb9ce3f7a57f"
    ],
    "User-Agent": [
      "PostmanRuntime/2.4.5"
    ],
    "Via": [
      "1.1 d98420743a69852491bbdea73f7680bd.cloudfront.net (CloudFront)"
    ],
    "X-Amz-Cf-Id": [
      "pn-PWIJc6thYnZm5P0NMgOUglL1DYtl0gdeJky8tqsg8iS_sgsKD1A=="
    ],
    "X-Forwarded-For": [
      "54.240.196.186, 54.182.214.83"
    ],
    "X-Forwarded-Port": [
      "443"
    ],
    "X-Forwarded-Proto": [
      "https"
    ]
  },
  "queryStringParameters": {
    "name": "me"
  },
  "multiValueQueryStringParameters": {
    "name": [
      "me"
    ]
  },
  "pathParameters": {
    "proxy": "hello/world"
  },
  "stageVariables": {
    "stageVariableName": "stageVariableValue"
  },
  "requestContext": {
    "accountId": "12345678912",
    "resourceId": "roq9wj",
    "stage": "testStage",
    "requestId": "deef4878-7910-11e6-8f14-25afc3e9ae33",
    "identity": {
      "cognitoIdentityPoolId": "theCognitoIdentityPoolId",
      "accountId": "theAccountId",
      "cognitoIdentityId": "theCognitoIdentityId",
      "caller": "theCaller",
      "apiKey": "theApiKey",
      "accessKey": "ANEXAMPLEOFACCESSKEY",
      "sourceIp": "192.168.196.186",
      "cognitoAuthenticationType": "theCognitoAuthenticationType",
      "cognitoAuthenticationProvider": "theCognitoAuthenticationProvider",
      "userArn": "theUserArn",
      "userAgent": "PostmanRuntime/2.4.5",
      "user": "theUser"
    },
    "authorizer": {
      "principalId": "admin",
      "clientId": 1,
      "clientName": "Exata"
    },
    "resourcePath": "/{proxy+}",
    "httpMethod": "POST",
    "apiId": "gy415nuibc"
  },
  "body": "{\r\n\t\"a\": 1\r\n}"
}

lambda_proxy_test.go

package apigo_test

import (
	"context"
	"encoding/json"
	"io/ioutil"
	"net/http"
	"testing"

	"github.com/apex/gateway"
	"github.com/aws/aws-lambda-go/events"
	"github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc"
	"github.com/piotrkubisa/apigo"
)

func BenchmarkGateway_Serve(b *testing.B) {
	g := apigo.NewGateway("api.example.com", http.HandlerFunc(helloHandler))

	payload, err := ioutil.ReadFile("./vendor/github.com/aws/aws-lambda-go/events/testdata/apigw-request.json")
	if err != nil {
		panic(err)
	}
	var ev events.APIGatewayProxyRequest
	if err := json.Unmarshal(payload, &ev); err != nil {
		panic(err)
	}

	for i := 0; i < b.N; i++ {
		g.Serve(context.TODO(), ev)
	}
}

func helloHandler(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")
	w.WriteHeader(http.StatusTeapot)
	w.Write([]byte(`"Hello World"`))
}

func BenchmarkApexFunc(b *testing.B) {
	h := http.HandlerFunc(helloHandler)

	gServe := func(ctx context.Context, e events.APIGatewayProxyRequest) (events.APIGatewayProxyResponse, error) {
		r, err := gateway.NewRequest(ctx, e)
		if err != nil {
			return events.APIGatewayProxyResponse{}, err
		}

		w := gateway.NewResponse()
		h.ServeHTTP(w, r)
		return w.End(), nil
	}

	payload, err := ioutil.ReadFile("./vendor/github.com/aws/aws-lambda-go/events/testdata/apigw-request.json")
	if err != nil {
		panic(err)
	}
	var ev events.APIGatewayProxyRequest
	if err := json.Unmarshal(payload, &ev); err != nil {
		panic(err)
	}

	for i := 0; i < b.N; i++ {
		gServe(context.TODO(), ev)
	}
}

func BenchmarkLambdaProxy(b *testing.B) {
	g := handlerfunc.New(helloHandler)

	payload, err := ioutil.ReadFile("./vendor/github.com/aws/aws-lambda-go/events/testdata/apigw-request.json")
	if err != nil {
		panic(err)
	}
	var ev events.APIGatewayProxyRequest
	if err := json.Unmarshal(payload, &ev); err != nil {
		panic(err)
	}

	for i := 0; i < b.N; i++ {
		g.Proxy(ev)
	}
}

TODO: Use --count 5 in go test.

NOTE: Outdated. Please, scroll down.

$ go test -benchmem -run=^$ github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc -bench '^(BenchmarkLambdaProxy)$' -count 5
goos: linux
goarch: amd64
pkg: github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc
BenchmarkLambdaProxy-4            100000             17201 ns/op            7436 B/op         74 allocs/op
BenchmarkLambdaProxy-4            100000             17188 ns/op            7438 B/op         74 allocs/op
BenchmarkLambdaProxy-4            100000             16925 ns/op            7436 B/op         74 allocs/op
BenchmarkLambdaProxy-4            100000             16845 ns/op            7436 B/op         74 allocs/op
BenchmarkLambdaProxy-4            100000             16113 ns/op            7437 B/op         74 allocs/op
PASS
ok      github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc    9.164s

$ go test -benchmem -run=^$ github.com/piotrkubisa/apigo -bench '^(BenchmarkGateway_Serve)$' -count 5
goos: linux
goarch: amd64
pkg: github.com/piotrkubisa/apigo
BenchmarkGateway_Serve-4          200000             10199 ns/op            5686 B/op         59 allocs/op
BenchmarkGateway_Serve-4          200000              9610 ns/op            5688 B/op         59 allocs/op
BenchmarkGateway_Serve-4          200000              9483 ns/op            5687 B/op         59 allocs/op
BenchmarkGateway_Serve-4          200000              9557 ns/op            5687 B/op         59 allocs/op
BenchmarkGateway_Serve-4          200000              9436 ns/op            5686 B/op         59 allocs/op
PASS
ok      github.com/piotrkubisa/apigo    10.192s

$ go test -benchmem -run=^$ github.com/apex/gateway -bench '^(BenchmarkApexFunc)$' -count 5
goos: linux
goarch: amd64
pkg: github.com/apex/gateway
BenchmarkApexFunc-4       200000              9389 ns/op            6271 B/op         61 allocs/op
BenchmarkApexFunc-4       200000              9352 ns/op            6272 B/op         61 allocs/op
BenchmarkApexFunc-4       200000              9262 ns/op            6270 B/op         61 allocs/op
BenchmarkApexFunc-4       200000              9421 ns/op            6271 B/op         61 allocs/op
BenchmarkApexFunc-4       200000             11302 ns/op            6271 B/op         61 allocs/op
PASS
ok      github.com/apex/gateway    11.283s

$ go test -benchmem -run=^$ github.com/piotrkubisa/apigo -bench '^(BenchmarkGateway_Serve)$' -count 5
goos: linux
goarch: amd64
pkg: github.com/piotrkubisa/apigo
BenchmarkGateway_Serve-4          200000              8771 ns/op            5686 B/op         60 allocs/op
BenchmarkGateway_Serve-4          200000              8578 ns/op            5687 B/op         60 allocs/op
BenchmarkGateway_Serve-4          200000              8622 ns/op            5687 B/op         60 allocs/op
BenchmarkGateway_Serve-4          200000              8594 ns/op            5687 B/op         60 allocs/op
BenchmarkGateway_Serve-4          200000              8745 ns/op            5687 B/op         60 allocs/op
PASS
ok      github.com/piotrkubisa/apigo    9.120s

$ go test -benchmem -run=^$ github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc -bench '^(BenchmarkLambdaProxy)$' -v -count 5
goos: linux
goarch: amd64
pkg: github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc
BenchmarkLambdaProxy-4            100000             12659 ns/op            7099 B/op         73 allocs/op
BenchmarkLambdaProxy-4            100000             12615 ns/op            7100 B/op         73 allocs/op
BenchmarkLambdaProxy-4            100000             12697 ns/op            7100 B/op         73 allocs/op
BenchmarkLambdaProxy-4            100000             12726 ns/op            7100 B/op         73 allocs/op
BenchmarkLambdaProxy-4            100000             12602 ns/op            7099 B/op         73 allocs/op
PASS
ok      github.com/awslabs/aws-lambda-go-api-proxy/handlerfunc  6.999s

$ go test -benchmem -run=^$ github.com/apex/gateway -bench '^(BenchmarkApexFunc)$' -v -count 5
goos: linux
goarch: amd64
pkg: github.com/apex/gateway
BenchmarkApexFunc-4       200000             11651 ns/op            9182 B/op         65 allocs/op
BenchmarkApexFunc-4       200000             11778 ns/op            9182 B/op         65 allocs/op
BenchmarkApexFunc-4       200000             11481 ns/op            9180 B/op         65 allocs/op
BenchmarkApexFunc-4       200000             11682 ns/op            9182 B/op         65 allocs/op
BenchmarkApexFunc-4       200000             11669 ns/op            9181 B/op         65 allocs/op
PASS
ok      github.com/apex/gateway 12.259s