Added grpc web service

grpc/server.go

@@ -0,0 +1,41 @@
+package grpc
+
+import (
+	"context"
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/siteworxpro/img-proxy-url-generator/generator"
+	"log"
+	"strings"
+)
+
+type GeneratorService struct {
+	UnimplementedGeneratorServer
+	imgGenerator *generator.Generator
+}
+
+func NewService(imgGenerator *generator.Generator) *GeneratorService {
+	return &GeneratorService{imgGenerator: imgGenerator}
+}
+
+func (s *GeneratorService) Generate(c context.Context, r *UrlRequest) (*UrlResponse, error) {
+
+	var err error
+	format := generator.DEF
+
+	if r.Format != nil {
+		format, err = s.imgGenerator.StringToFormat(r.Format.String())
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	url, err := s.imgGenerator.GenerateUrl(*r.Image, r.Params, format)
+	if err != nil {
+		return nil, err
+	}
+
+	log.Println(fmt.Sprintf("%s - [%s] - (%s)", *r.Image, strings.Join(r.Params, ","), url))
+
+	return &UrlResponse{Url: aws.String(url)}, nil
+}