Version 1.0.0

Author: akrylysov

.travis.yml

@@ -1,4 +1,4 @@
 language: go
 go:
-  - "1.11.x"
+  - "1.18.x"
   - "1.x"

CHANGELOG.md

@@ -1,8 +1,27 @@
 # Changelog
 
-## [0.12.1] - 2019-09-26
+## [1.0.0] - 2023-03-02
+### Fixed
+- API Gateway V2: Fixed response header support.
+- API Gateway V2: Fixed handling request cookies.
+- API Gateway V2: Fixed multi-value query parameters.
+- ALB: Fixed double escaping of query parameters.
+
+### Changed
+- `RequestTypeAPIGateway` renamed to `RequestTypeAPIGatewayV1`.
+- `ProxyRequestFromContext` renamed to `APIGatewayV1RequestFromContext`.
+- `APIGatewayV2HTTPRequestFromContext` renamed to `APIGatewayV2RequestFromContext`.
+- `TargetGroupRequestFromContext` renamed to `ALBRequestFromContext`.
+- Improved unit tests.
+- Go 1.18 is the minimum supported version now.
+
+## [0.13.0] - 2022-01-08
 ### Added
-- Fixed compatibility with Go versions older than 1.13.
+- API Gateway V2 support (@a-h).
+
+## [0.12.1] - 2019-09-26
+### Fixed
+- Compatibility with Go versions older than 1.13.
 
 ## [0.12.0] - 2019-09-26
 ### Added
@@ -16,7 +35,7 @@
 ### Changed
 - Set RequestURI on request (@RossHammer).
 - Unescape Path (@RossHammer).
-- Multi-value header support implemented using APIGatewayProxyResponse.MultiValueHeaders.
+- Multi-value header support implemented using `APIGatewayProxyResponse.MultiValueHeaders`.
 
 ## [0.9] - 2018-12-10
 ### Added

README.md

@@ -15,10 +15,6 @@ import (
     "github.com/akrylysov/algnhsa"
 )
 
-func indexHandler(w http.ResponseWriter, r *http.Request) {
-    w.Write([]byte("index"))
-}
-
 func addHandler(w http.ResponseWriter, r *http.Request) {
     f, _ := strconv.Atoi(r.FormValue("first"))
     s, _ := strconv.Atoi(r.FormValue("second"))
@@ -27,14 +23,13 @@ func addHandler(w http.ResponseWriter, r *http.Request) {
 }
 
 func contextHandler(w http.ResponseWriter, r *http.Request) {
-    proxyReq, ok := algnhsa.ProxyRequestFromContext(r.Context())
+    lambdaEvent, ok := algnhsa.APIGatewayV2RequestFromContext(r.Context())
     if ok {
-        fmt.Fprint(w, proxyReq.RequestContext.AccountID)
+        fmt.Fprint(w, lambdaEvent.RequestContext.AccountID)
     }
 }
 
 func main() {
-    http.HandleFunc("/", indexHandler)
     http.HandleFunc("/add", addHandler)
     http.HandleFunc("/context", contextHandler)
     algnhsa.ListenAndServe(http.DefaultServeMux, nil)
@@ -56,26 +51,48 @@ import (
 func main() {
     r := chi.NewRouter()
     r.Get("/", func(w http.ResponseWriter, r *http.Request) {
-        w.Write([]byte("index"))
+        w.Write([]byte("hi"))
     })
     algnhsa.ListenAndServe(r, nil)
 }
 ```
 
-## Setting up API Gateway 
+## Deployment
+
+First, build your Go application for Linux and zip it:
+
+```bash
+GOOS=linux GOARCH=amd64 go build -o handler
+zip handler.zip handler
+```
+
+AWS provides plenty of ways to expose a Lambda function to the internet.
+
+### Lambda Function URL
+
+This is the easier way to deploy your Lambda function as an HTTP endpoint.
+It only requires going to the "Function URL" section of the Lambda function configuration and clicking "Configure Function URL".
+
+### API Gateway
+
+#### HTTP API
+
+1. Create a new HTTP API.
+
+2. Configure a catch-all `$default` route.
+
+#### REST API
 
 1. Create a new REST API.
 
 2. In the "Resources" section create a new `ANY` method to handle requests to `/` (check "Use Lambda Proxy Integration").
 
-    ![API Gateway index](https://akrylysov.github.io/algnhsa/apigateway-index.png)
-
 3. Add a catch-all `{proxy+}` resource to handle requests to every other path (check "Configure as proxy resource").
 
-    ![API Gateway catch-all](https://akrylysov.github.io/algnhsa/apigateway-catchall.png)
-
-## Setting up ALB
+### ALB
 
 1. Create a new ALB and point it to your Lambda function.
 
-2. In the target group settings enable "Multi value headers".
+2. In the target group settings in the "Attributes" section enable "Multi value headers".
+
+[AWS Documentation](https://docs.aws.amazon.com/lambda/latest/dg/services-alb.html)

adapter.go

@@ -3,6 +3,7 @@ package algnhsa
 import (
 	"context"
 	"encoding/json"
+	"fmt"
 	"net/http"
 	"net/http/httptest"
 
@@ -21,10 +22,16 @@ func (handler lambdaHandler) Invoke(ctx context.Context, payload []byte) ([]byte
 	if err != nil {
 		return nil, err
 	}
+	if handler.opts.DebugLog {
+		fmt.Printf("Response: %+v", resp)
+	}
 	return json.Marshal(resp)
 }
 
 func (handler lambdaHandler) handleEvent(ctx context.Context, payload []byte) (lambdaResponse, error) {
+	if handler.opts.DebugLog {
+		fmt.Printf("Request: %s", payload)
+	}
 	eventReq, err := newLambdaRequest(ctx, payload, handler.opts)
 	if err != nil {
 		return lambdaResponse{}, err
@@ -35,7 +42,7 @@ func (handler lambdaHandler) handleEvent(ctx context.Context, payload []byte) (l
 	}
 	w := httptest.NewRecorder()
 	handler.httpHandler.ServeHTTP(w, r)
-	return newLambdaResponse(w, handler.opts.binaryContentTypeMap)
+	return newLambdaResponse(w, handler.opts.binaryContentTypeMap, eventReq.requestType)
 }
 
 // ListenAndServe starts the AWS Lambda runtime (aws-lambda-go lambda.Start) with a given handler.