feat: add joke api (#294)

* feat: add joke api
close #124

* chore: count boundary

* fix: bug fix
chore: update README.md

* feat: add publicapi.json

joke/main.go

@@ -0,0 +1,87 @@
+package main
+
+import (
+	"errors"
+	"math/rand"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/micro/services/joke/handler"
+	"github.com/micro/services/joke/model"
+	pb "github.com/micro/services/joke/proto"
+
+	"github.com/micro/micro/v3/service"
+	"github.com/micro/micro/v3/service/logger"
+)
+
+var (
+	sources = []model.JokeSource{
+		{
+			Source: "https://www.reddit.com/r/jokes",
+			Api:    "https://raw.githubusercontent.com/taivop/joke-dataset/master/reddit_jokes.json",
+		},
+		{
+			Source: "http://wocka.com/",
+			Api:    "https://raw.githubusercontent.com/taivop/joke-dataset/master/wocka.json",
+		},
+		{
+			Source: "http://stupidstuff.org/jokes/",
+			Api:    "https://raw.githubusercontent.com/taivop/joke-dataset/master/stupidstuff.json",
+		},
+	}
+)
+
+// loadJokes is used to load jokes in store
+func loadJokes() error {
+	wg := sync.WaitGroup{}
+	errs := make([]string, 0)
+	for _, v := range sources {
+		wg.Add(1)
+
+		go func(s model.JokeSource) {
+			defer wg.Done()
+
+			err := model.NewJoke(s).Load()
+
+			if err != nil {
+				logger.Errorf("load jokes error: %s", err)
+				errs = append(errs, err.Error())
+				return
+			}
+
+		}(v)
+
+	}
+
+	wg.Wait()
+
+	if len(errs) != 0 {
+		return errors.New("load jokes error: " + strings.Join(errs, ";"))
+	}
+
+	logger.Infof("loaded jokes: %d\n", len(model.GetAllJokes()))
+
+	return nil
+}
+
+func init() {
+	rand.Seed(time.Now().UnixNano())
+}
+
+func main() {
+	// Create service
+	srv := service.New(
+		service.Name("joke"),
+		service.Version("latest"),
+		service.BeforeStart(loadJokes),
+	)
+
+	// Register handler
+	pb.RegisterJokeHandler(srv.Server(), new(handler.Joke))
+
+	// Run service
+	if err := srv.Run(); err != nil {
+		logger.Fatal(err)
+	}
+}