add vote handler to app

app/handler/vote.go

@@ -0,0 +1,44 @@
+package handler
+
+import (
+        "context"
+        "time"
+
+
+        "github.com/micro/services/pkg/tenant"
+        "github.com/micro/micro/v3/service/store"
+        pb "github.com/micro/services/app/proto"
+)
+
+var (
+        voteKey = "votes/"
+)
+
+type Vote struct {
+        Id string `json:"id"`
+        Message string `json:"message"`
+        VotedAt time.Time `json:"voted_at"`
+}
+
+func (n *App) Vote(ctx context.Context, req *pb.VoteRequest, rsp *pb.VoteResponse) error {
+        mtx.Lock()
+        defer mtx.Unlock()
+
+        id, ok := tenant.FromContext(ctx)
+        if !ok {
+                id = "micro"
+        }
+
+        rec := store.NewRecord(voteKey + id, &Vote{
+                Id: id,
+                Message: req.Message,
+                VotedAt: time.Now(),
+        })
+
+        // we don't need to check the error
+        store.Write(rec)
+
+        rsp.Message = "Thanks for the vote!"
+
+        return nil
+}