AWS Lambda HTTP Proxy integration event bridge to Go net/http.

ridge is a bridge to convert API Gateway with Lambda Proxy Integration request/response and net/http.Request and net/http.ResponseWriter.

• API Gateway with Lambda Proxy Integration through a Proxy Resource

package main

import (
	"fmt"
	"net/http"

	"github.com/fujiwara/ridge"
)

func main() {
	var mux = http.NewServeMux()
	mux.HandleFunc("/", handleRoot)
	mux.HandleFunc("/hello", handleHello)
	ridge.Run(":8080", "/", mux)
}

func handleHello(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "text/plain")
	fmt.Fprintf(w, "Hello %s\n", r.FormValue("name"))
}

func handleRoot(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "text/plain")
	fmt.Fprintln(w, "Hello World")
	fmt.Fprintln(w, r.URL)
}

1. Create IAM role "ridge" for Lambda which have attached policy AWSLambdaBasicExecutionRole.
2. Install lambroll.
3. Place main.go to example/.
4. Run make deploy to deploy a lambda function.
5. Create API Gateway with the lambda function.

• for HTTP API https://docs.aws.amazon.com/apigateway/latest/developerguide/http-api-develop-integrations-lambda.html
• for REST API http://docs.aws.amazon.com/apigateway/latest/developerguide/api-gateway-set-up-simple-proxy.html

ridge.Run(address, prefix, handler) works as below.

• If a process is running on Lambda (AWS_EXECUTION_ENV or AWS_LAMBDA_RUNTIME_API environment variable defined),
  • Call lambda.Start()
• Otherwise start a net/http server using prefix and address.

The MIT License (MIT)

Copyright (c) 2016- FUJIWARA Shunichiro