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feat: add projection layer to eventstore

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This commit is contained in:
Jon Lundy
2022-09-06 10:35:14 -06:00
parent f65e9ca666
commit 063dca997f
24 changed files with 493 additions and 220 deletions
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54
app/msgbus/service.go
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@@ -12,7 +12,7 @@ import (
"time"
"github.com/gorilla/websocket"
"github.com/sour-is/ev/internal/logz"
"github.com/sour-is/ev/internal/lg"
"github.com/sour-is/ev/pkg/es"
"github.com/sour-is/ev/pkg/es/event"
"github.com/sour-is/ev/pkg/gql"
@@ -35,7 +35,7 @@ type MsgbusResolver interface {
}
func New(ctx context.Context, es *es.EventStore) (*service, error) {
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
if err := event.Register(ctx, &PostEvent{}); err != nil {
@@ -45,7 +45,7 @@ func New(ctx context.Context, es *es.EventStore) (*service, error) {
return nil, err
}
m := logz.Meter(ctx)
m := lg.Meter(ctx)
svc := &service{es: es}
@@ -72,11 +72,11 @@ var upgrader = websocket.Upgrader{
}
func (s *service) RegisterHTTP(mux *http.ServeMux) {
mux.Handle("/inbox/", logz.Htrace(http.StripPrefix("/inbox/", s), "inbox"))
mux.Handle("/inbox/", lg.Htrace(http.StripPrefix("/inbox/", s), "inbox"))
}
func (s *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
r = r.WithContext(ctx)
@@ -97,7 +97,7 @@ func (s *service) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// Posts is the resolver for the events field.
func (r *service) Posts(ctx context.Context, streamID string, paging *gql.PageInput) (*gql.Connection, error) {
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
r.Mresolver_posts.Add(ctx, 1)
@@ -143,7 +143,7 @@ func (r *service) Posts(ctx context.Context, streamID string, paging *gql.PageIn
}
func (r *service) PostAdded(ctx context.Context, streamID string, after int64) (<-chan *PostEvent, error) {
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
r.Mresolver_post_added.Add(ctx, 1)
@@ -162,15 +162,19 @@ func (r *service) PostAdded(ctx context.Context, streamID string, after int64) (
ch := make(chan *PostEvent)
go func() {
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
defer func() {
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
err := sub.Close(ctx)
span.RecordError(err)
}()
{
ctx, span := lg.Fork(ctx)
defer func() {
defer span.End()
ctx, cancel := context.WithTimeout(ctx, 1*time.Second)
defer cancel()
err := sub.Close(ctx)
span.RecordError(err)
}()
}
for sub.Recv(ctx) {
events, err := sub.Events(ctx)
@@ -199,7 +203,7 @@ func (r *service) PostAdded(ctx context.Context, streamID string, after int64) (
func (s *service) get(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
name, _, _ := strings.Cut(r.URL.Path, "/")
@@ -253,7 +257,7 @@ func (s *service) get(w http.ResponseWriter, r *http.Request) {
func (s *service) post(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
name, tags, _ := strings.Cut(r.URL.Path, "/")
@@ -320,7 +324,7 @@ func (s *service) post(w http.ResponseWriter, r *http.Request) {
}
func (s *service) websocket(w http.ResponseWriter, r *http.Request) {
ctx := r.Context()
ctx, span := logz.Span(ctx)
ctx, span := lg.Span(ctx)
defer span.End()
name, _, _ := strings.Cut(r.URL.Path, "/")
@@ -381,12 +385,16 @@ func (s *service) websocket(w http.ResponseWriter, r *http.Request) {
span.RecordError(err)
return
}
defer func() {
ctx, cancel := context.WithTimeout(context.Background(), 1*time.Second)
defer cancel()
span.AddEvent("stop ws")
sub.Close(ctx)
}()
{
ctx, span := lg.Fork(ctx)
defer func() {
defer span.End()
ctx, cancel := context.WithTimeout(ctx, 1*time.Second)
defer cancel()
err := sub.Close(ctx)
span.RecordError(err)
}()
}
span.AddEvent("start ws")
for sub.Recv(ctx) {