add the place service (#376)

place/handler/google.go

@@ -0,0 +1,179 @@
+package handler
+
+import (
+	"context"
+	"strings"
+	"strconv"
+
+	"googlemaps.github.io/maps"
+	"github.com/micro/micro/v3/service/config"
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+
+	pb "github.com/micro/services/place/proto"
+)
+
+var (
+	Key    string
+	Url    = "https://maps.googleapis.com/maps/api/"
+	Format = "json"
+)
+
+type Google struct {
+	Maps *maps.Client
+}
+
+func NewGoogle() *Google {
+        // Setup google maps
+        c, err := config.Get("google.apikey")
+        if err != nil {
+                logger.Fatalf("Error loading config: %v", err)
+        }
+        apiKey := c.String("")
+        if len(apiKey) == 0 {
+                logger.Fatalf("Missing required config: google.apikey")
+        }
+        m, err := maps.NewClient(maps.WithAPIKey(apiKey))
+        if err != nil {
+                logger.Fatalf("Error configuring google maps client: %v", err)
+        }
+
+	return &Google{
+		Maps: m,
+	}
+}
+
+func (g *Google) Nearby(ctx context.Context, req *pb.NearbyRequest, rsp *pb.NearbyResponse) error {
+	greq := &maps.NearbySearchRequest{}
+
+	if len(req.Location) > 0 {
+		parts := strings.Split(req.Location, ",")
+		if len(parts) > 2 {
+			return errors.BadRequest("place.nearby", "invalid location")
+		}
+		lat, _ := strconv.ParseFloat(parts[0], 64)
+		lng, _ := strconv.ParseFloat(parts[1], 64)
+
+		greq.Location = &maps.LatLng{
+			Lat: lat,
+			Lng: lng,
+		}
+	}
+
+	if req.Radius == 0 {
+		req.Radius = uint32(1000)
+	}
+
+	greq.Radius = uint(req.Radius)
+	greq.Keyword = req.Keyword
+	greq.Name = req.Name
+	greq.OpenNow = req.OpenNow
+
+	// set the place type
+	// https://developers.google.com/maps/documentation/places/web-service/supported_types
+	if len(req.Type) > 0 {
+		pt, err := maps.ParsePlaceType(req.Type)
+		if err != nil {
+			return err
+		}
+		greq.Type = pt
+	}
+
+	resp, err := g.Maps.NearbySearch(ctx, greq)
+	if err != nil {
+		return err
+	}
+
+	for _, res := range resp.Results {
+		var hours []string
+		var openNow bool
+		if res.OpeningHours != nil {
+			hours = res.OpeningHours.WeekdayText
+			if res.OpeningHours.OpenNow != nil {
+				openNow = *res.OpeningHours.OpenNow
+			}
+		}
+
+		rsp.Results = append(rsp.Results, &pb.Result{
+			Address: res.FormattedAddress,
+			Location: res.Geometry.Location.String(),
+			Name: res.Name,
+			IconUrl: res.Icon,
+			Rating: float64(res.Rating),
+			OpenNow: openNow,
+			OpeningHours: hours,
+			Vicinity: res.Vicinity,
+			Types: res.Types,
+		})
+	}
+
+	return nil
+}
+
+func (g *Google) Search(ctx context.Context, req *pb.SearchRequest, rsp *pb.SearchResponse) error {
+	if len(req.Query) == 0 {
+		return errors.BadRequest("place.search", "missing query")
+	}
+
+	greq := &maps.TextSearchRequest{}
+
+	if len(req.Location) > 0 {
+		parts := strings.Split(req.Location, ",")
+		if len(parts) > 2 {
+			return errors.BadRequest("place.search", "invalid location")
+		}
+		lat, _ := strconv.ParseFloat(parts[0], 64)
+		lng, _ := strconv.ParseFloat(parts[1], 64)
+
+		greq.Location = &maps.LatLng{
+			Lat: lat,
+			Lng: lng,
+		}
+	}
+
+	if req.Radius == 0 {
+		req.Radius = uint32(1000)
+	}
+
+	greq.Radius = uint(req.Radius)
+	greq.OpenNow = req.OpenNow
+
+	// set the place type
+	// https://developers.google.com/maps/documentation/places/web-service/supported_types
+	if len(req.Type) > 0 {
+		pt, err := maps.ParsePlaceType(req.Type)
+		if err != nil {
+			return err
+		}
+		greq.Type = pt
+	}
+
+	resp, err := g.Maps.TextSearch(ctx, greq)
+	if err != nil {
+		return err
+	}
+
+	for _, res := range resp.Results {
+		var hours []string
+		var openNow bool
+		if res.OpeningHours != nil {
+			hours = res.OpeningHours.WeekdayText
+			if res.OpeningHours.OpenNow != nil {
+				openNow = *res.OpeningHours.OpenNow
+			}
+		}
+		rsp.Results = append(rsp.Results, &pb.Result{
+			Address: res.FormattedAddress,
+			Location: res.Geometry.Location.String(),
+			Name: res.Name,
+			IconUrl: res.Icon,
+			Rating: float64(res.Rating),
+			OpenNow: openNow,
+			OpeningHours: hours,
+			Vicinity: res.Vicinity,
+			Types: res.Types,
+		})
+	}
+
+	return nil
+}

place/handler/place.go

@@ -0,0 +1,10 @@
+package handler
+
+type Place struct{
+	*Google
+}
+
+func New() *Place {
+	g := NewGoogle()
+	return &Place{g}
+}