Update threads to use model/store (#97)

threads/handler/list_threads.go

@@ -0,0 +1,39 @@
+package handler
+
+import (
+	"context"
+
+	"github.com/micro/micro/v3/service/auth"
+	"github.com/micro/micro/v3/service/errors"
+	"github.com/micro/micro/v3/service/logger"
+	"github.com/micro/services/pkg/model"
+	pb "github.com/micro/services/threads/proto"
+)
+
+// List all the threads for a group
+func (s *Threads) ListThreads(ctx context.Context, req *pb.ListThreadsRequest, rsp *pb.ListThreadsResponse) error {
+	_, ok := auth.AccountFromContext(ctx)
+	if !ok {
+		errors.Unauthorized("UNAUTHORIZED", "Unauthorized")
+	}
+	// validate the request
+	if len(req.GroupId) == 0 {
+		return ErrMissingGroupID
+	}
+
+	var threads []*Thread
+	thread := &Thread{GroupID: req.GroupId}
+
+	// get all the threads
+	if err := model.List(ctx, thread, &threads, model.Query{}); err != nil {
+		logger.Errorf("Error reading thread: %v", err)
+		return errors.InternalServerError("DATABASE_ERROR", "Error connecting to database")
+	}
+
+	// return the response
+	for _, thread := range threads {
+		rsp.Threads = append(rsp.Threads, thread.Serialize())
+	}
+
+	return nil
+}