add simple golang http endpoint example (#494)

* initial commit, serverless golang example

* moving to aws folder for proper provider

* updating naming convention

* moving folders to match examples repo structure

* moving into alignment with existing example repo

Author: sebito91

examples/aws-golang-simple-http-endpoint/Gopkg.toml

@@ -0,0 +1,25 @@
+# Gopkg.toml example
+#
+# Refer to https://github.com/golang/dep/blob/master/docs/Gopkg.toml.md
+# for detailed Gopkg.toml documentation.
+#
+# required = ["github.com/user/thing/cmd/thing"]
+# ignored = ["github.com/user/project/pkgX", "bitbucket.org/user/project/pkgA/pkgY"]
+#
+# [[constraint]]
+#   name = "github.com/user/project"
+#   version = "1.0.0"
+#
+# [[constraint]]
+#   name = "github.com/user/project2"
+#   branch = "dev"
+#   source = "github.com/myfork/project2"
+#
+# [[override]]
+#  name = "github.com/x/y"
+#  version = "2.4.0"
+
+
+[[constraint]]
+  name = "github.com/aws/aws-lambda-go"
+  version = "1.x"

examples/aws-golang-simple-http-endpoint/Makefile

@@ -0,0 +1,12 @@
+build:
+	dep ensure -v
+	env GOOS=linux go build -ldflags="-s -w" -o bin/hello hello/main.go
+	env GOOS=linux go build -ldflags="-s -w" -o bin/world world/main.go
+
+.PHONY: clean
+clean:
+	rm -rf ./bin ./vendor Gopkg.lock
+
+.PHONY: deploy
+deploy: clean build
+	sls deploy --verbose

examples/aws-golang-simple-http-endpoint/hello/main.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+
+	"github.com/aws/aws-lambda-go/events"
+	"github.com/aws/aws-lambda-go/lambda"
+)
+
+// Response is of type APIGatewayProxyResponse since we're leveraging the
+// AWS Lambda Proxy Request functionality (default behavior)
+//
+// https://serverless.com/framework/docs/providers/aws/events/apigateway/#lambda-proxy-integration
+type Response events.APIGatewayProxyResponse
+
+// Handler is our lambda handler invoked by the `lambda.Start` function call
+func Handler(ctx context.Context) (Response, error) {
+	var buf bytes.Buffer
+
+	body, err := json.Marshal(map[string]interface{}{
+		"message": "Go Serverless v1.0! Your function executed successfully!",
+	})
+	if err != nil {
+		return Response{StatusCode: 404}, err
+	}
+	json.HTMLEscape(&buf, body)
+
+	resp := Response{
+		StatusCode:      200,
+		IsBase64Encoded: false,
+		Body:            buf.String(),
+		Headers: map[string]string{
+			"Content-Type":           "application/json",
+			"X-MyCompany-Func-Reply": "hello-handler",
+		},
+	}
+
+	return resp, nil
+}
+
+func main() {
+	lambda.Start(Handler)
+}