add ability to send sms in emoji (#165)

emoji/handler/emoji.go

@@ -2,8 +2,12 @@ package handler
 
 import (
 	"context"
+	"net/url"
 
+	"github.com/kevinburke/twilio-go"
 	"github.com/enescakir/emoji"
+	"github.com/micro/micro/v3/service/config"
+	"github.com/micro/micro/v3/service/logger"
 	"github.com/micro/micro/v3/service/errors"
 	pb "github.com/micro/services/emoji/proto"
 )
@@ -32,3 +36,57 @@ func (e *Emoji) Print(ctx context.Context, req *pb.PrintRequest, rsp *pb.PrintRe
 	rsp.Text = emoji.Parse(req.Text)
 	return nil
 }
+
+func (e *Emoji) Send(ctx context.Context, req *pb.SendRequest, rsp *pb.SendResponse) error {
+	if len(req.From) == 0 {
+		return errors.BadRequest("emoji.send", "require from field")
+	}
+	if len(req.To) == 0 {
+		return errors.BadRequest("emoji.send", "require to field")
+	}
+	if len(req.Message) == 0 {
+		return errors.BadRequest("emoji.send", "message is blank")
+	}
+
+	v, err := config.Get("twilio.sid")
+	if err != nil {
+		logger.Error("Failed to get twilio.sid config")
+		return errors.InternalServerError("emoji.send", "failed to send message")
+	}
+	sid := v.String("")
+
+	v, err = config.Get("twilio.token")
+	if err != nil {
+		logger.Error("Failed to get twilio.token config")
+		return errors.InternalServerError("emoji.send", "failed to send message")
+	}
+	token := v.String("")
+
+	v, err = config.Get("twilio.number")
+	if err != nil {
+		logger.Error("Failed to get twilio.number config")
+		return errors.InternalServerError("emoji.send", "failed to send message")
+	}
+	number := v.String("")
+
+	message := emoji.Parse(req.Message)
+	message += "  Sent from " + req.From
+
+	vals := url.Values{}
+	vals.Set("Body", message)
+	vals.Set("From", number)
+	vals.Set("To", req.To)
+	// non configurable and must match publicapi.json
+	vals.Set("MaxPrice", "0.01")
+
+	client := twilio.NewClient(sid, token, nil)
+	_, err = client.Messages.Create(ctx, vals)
+	if err != nil {
+		logger.Errorf("Failed to send message: %v", err)
+		return errors.InternalServerError("emoji.send", "failed to send message: %v", err.Error())
+	}
+
+	rsp.Success = true
+
+	return nil
+}