mats/go-cart-actor
1
0
Fork 0
Code Issues Pull Requests 1 Actions 3 Packages Projects Releases Wiki Activity

uniform
Build and Publish / BuildAndDeployArm64 (push) Failing after 7s
Details
Build and Publish / BuildAndDeployAmd64 (push) Failing after 7s
Details

Browse Source
This commit is contained in:
mats
2026-07-20 00:13:24 +02:00
parent 83ed477aa4
commit e6f69f500a
14 changed files with 457 additions and 471 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cmd/cart/main.go
+2 -100
View File
@@ -84,15 +84,7 @@ func loadUCPCartSigner() *ucp.SigningConfig {
return cfg
}
func getCountryFromHost(host string) string {
if strings.Contains(strings.ToLower(host), "-no") {
return "no"
}
if strings.Contains(strings.ToLower(host), "-se") {
return "se"
}
return "se"
}
type MutationContext struct {
VoucherService voucher.Service
@@ -103,62 +95,6 @@ type CartChangeEvent struct {
Mutations []actor.ApplyResult `json:"mutations"`
}
// catalogProjectionCache is the cart's per-pod, cold-start-ready catalog
// projection cache, backed by platform/catalog.ProjectionStore. It consumes the
// catalog.projection_published wire — a full snapshot (begin/chunk/end, framed by
// epoch) plus incremental deltas — into its OWN local .bin and serves catalog
// facts by SKU (price, tax_class, inventory_tracked, image, …) at add-to-cart /
// checkout-reserve decisions. Stock is NOT cached — queried synchronously from
// inventory per docs/inventory-shape.md.
//
// Clustering: the cart runs N replicas. Each pod has its OWN exclusive bus queue
// (rabbit.ListenToPattern declares an exclusive server-named queue, so every pod
// receives the full stream) and its OWN pod-local .bin. It's a replicated read
// cache — no leader, no shared volume; N pods writing one file would corrupt it.
// See docs/catalog-projection.md.
//
// The cart stores the full catalog.Projection (identity transform): its
// add-to-cart overlay (projection_overlay.go) consumes nearly every field, so
// there's nothing to subset. Deletes ride as tombstones in the store's overlay
// (IsDeleted) so a removed SKU isn't re-fetched before the next snapshot folds
// the delete into the base. Cold-grace: an SKU not yet in the base/overlay
// resolves via the existing PRODUCT_BASE_URL HTTP fetch + overlay.
type catalogProjectionCache struct {
store *catalog.ProjectionStore[catalog.Projection]
}
// identityProjection is the cart's mandatory transform — it stores the full
// Projection because the overlay uses almost all of it.
func identityProjection(p catalog.Projection) catalog.Projection { return p }
// newCatalogProjectionCache opens the per-pod store under dir. dir MUST be
// pod-local (container fs / an emptyDir in k8s) — never a shared volume.
func newCatalogProjectionCache(dir string) (*catalogProjectionCache, error) {
s, err := catalog.NewProjectionStore(dir, "cart-projection.bin", identityProjection, nil)
if err != nil {
return nil, err
}
return &catalogProjectionCache{store: s}, nil
}
// HandleFrame feeds one catalog.projection_published event (snapshot frame or
// delta) into the store; framing/epoch ordering live in platform/catalog.
func (c *catalogProjectionCache) HandleFrame(meta map[string]string, payload []byte) error {
return c.store.HandleFrame(meta, payload)
}
func (c *catalogProjectionCache) Get(sku string) (catalog.Projection, bool) { return c.store.Get(sku) }
// IsDeleted reports whether the bus has explicitly deleted sku (overlay
// tombstone) — call sites skip the HTTP fallback for it.
func (c *catalogProjectionCache) IsDeleted(sku string) bool { return c.store.IsDeleted(sku) }
// Len reports cached entries (base + overlay) — debug/log gauge only.
func (c *catalogProjectionCache) Len() int {
_, base, overlay := c.store.Stats()
return base + overlay
}
func main() {
// cartPort is the bare HTTP port. It drives both the local listener and the
@@ -184,8 +120,6 @@ func main() {
promotionService := promotions.NewPromotionService(nil)
//inventoryPubSub := actor.NewPubSub[inventory.InventoryChange]()
rdb := redis.NewClient(&redis.Options{
Addr: redisAddress,
Password: redisPassword,
@@ -228,44 +162,12 @@ func main() {
_, span := tracer.Start(ctx, fmt.Sprintf("Spawn cart id %d", id))
defer span.End()
ret := cart.NewCartGrain(id, time.Now())
// Set baseline lastChange at spawn; replay may update it to last event timestamp.
// inventoryPubSub.Subscribe(ret.HandleInventoryChange)
err := diskStorage.LoadEvents(ctx, id, ret)
// if err == nil && inventoryService != nil {
// refs := make([]*inventory.InventoryReference, 0)
// for _, item := range ret.Items {
// refs = append(refs, &inventory.InventoryReference{
// SKU: inventory.SKU(item.Sku),
// LocationID: getLocationId(item),
// })
// }
// _, span := tracer.Start(ctx, "update inventory")
// defer span.End()
// res, err := inventoryService.GetInventoryBatch(ctx, refs...)
// if err != nil {
// log.Printf("unable to update inventory %v", err)
// } else {
// for _, update := range res {
// for _, item := range ret.Items {
// if matchesSkuAndLocation(update, *item) && update.Quantity != uint32(item.Stock) {
// // maybe apply an update to give visibility to the cart
// item.Stock = uint16(update.Quantity)
// }
// }
// }
// }
// }
return ret, err
},
Destroy: func(grain actor.Grain[cart.CartGrain]) error {
// cart, err := grain.GetCurrentState()
// if err != nil {
// return err
// }
//inventoryPubSub.Unsubscribe(cart.HandleInventoryChange)
return nil
},
SpawnHost: func(host string) (actor.Host[cart.CartGrain], error) {
@@ -411,7 +313,7 @@ func main() {
log.Print("cart: abandonment recovery DISABLED (CART_ABANDONED_DELAY not set or <= 0)")
}
otelShutdown, err := telemetry.SetupOTelSDK(ctx)
otelShutdown, err := telemetry.SetupOTelSDK(ctx, telemetry.LoggerConfigFromEnv())
if err != nil {
log.Fatalf("Unable to start otel %v", err)
}
cmd/cart/pool-server.go
+2 -45
View File
@@ -16,6 +16,7 @@ import (
messages "git.k6n.net/mats/go-cart-actor/proto/cart"
"git.k6n.net/mats/go-cart-actor/pkg/voucher"
"git.k6n.net/mats/platform/conv"
"go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp"
"google.golang.org/protobuf/proto"
"google.golang.org/protobuf/types/known/anypb"
@@ -70,7 +71,7 @@ func (s *PoolServer) GetCartHandler(w http.ResponseWriter, r *http.Request, id c
func (s *PoolServer) AddSkuToCartHandler(w http.ResponseWriter, r *http.Request, id cart.CartId) error {
sku := r.PathValue("sku")
country := getCountryFromHost(r.Host)
country := conv.CountryFromHost(r.Host)
if s.idx == nil {
log.Printf("No index present")
}
@@ -440,40 +441,6 @@ func (s *PoolServer) AddSkuRequestHandler(w http.ResponseWriter, r *http.Request
return s.WriteResult(w, reply)
}
// func (s *PoolServer) HandleConfirmation(w http.ResponseWriter, r *http.Request, id CartId) error {
// orderId := r.PathValue("orderId")
// if orderId == "" {
// return fmt.Errorf("orderId is empty")
// }
// order, err := KlarnaInstance.GetOrder(orderId)
// if err != nil {
// return err
// }
// w.Header().Set("Content-Type", "application/json")
// w.Header().Set("X-Pod-Name", s.pod_name)
// w.Header().Set("Cache-Control", "no-cache")
// w.Header().Set("Access-Control-Allow-Origin", "*")
// w.WriteHeader(http.StatusOK)
// return json.NewEncoder(w).Encode(order)
// }
// func (s *PoolServer) HandleCheckout(w http.ResponseWriter, r *http.Request, id CartId) error {
// klarnaOrder, err := s.CreateOrUpdateCheckout(r.Host, id)
// if err != nil {
// return err
// }
// s.ApplyCheckoutStarted(klarnaOrder, id)
// w.Header().Set("Content-Type", "application/json")
// return json.NewEncoder(w).Encode(klarnaOrder)
// }
//
// Removed leftover legacy block after CookieCartIdHandler (obsolete code referencing cid/legacy)
func (s *PoolServer) RemoveCartCookie(w http.ResponseWriter, r *http.Request, cartId cart.CartId) error {
// Clear cart cookie (breaking change: do not issue a new legacy id here)
http.SetCookie(w, &http.Cookie{
@@ -758,13 +725,6 @@ func (s *PoolServer) ApplyAnywhere(ctx context.Context, cartId cart.CartId, msgs
func (s *PoolServer) Serve(mux *http.ServeMux) {
// mux.HandleFunc("OPTIONS /cart", func(w http.ResponseWriter, r *http.Request) {
// w.Header().Set("Access-Control-Allow-Origin", "*")
// w.Header().Set("Access-Control-Allow-Methods", "GET, PUT, POST, DELETE")
// w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
// w.WriteHeader(http.StatusOK)
// })
handleFunc := func(pattern string, handlerFunc func(http.ResponseWriter, *http.Request)) {
attr := attribute.String("http.route", pattern)
mux.HandleFunc(pattern, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
@@ -800,9 +760,6 @@ func (s *PoolServer) Serve(mux *http.ServeMux) {
handleFunc("DELETE /cart/item/{itemId}/marking", CookieCartIdHandler(s.ProxyHandler(s.RemoveLineItemMarkingHandler)))
handleFunc("PUT /cart/item/{itemId}/custom-fields", CookieCartIdHandler(s.ProxyHandler(s.SetCustomFieldsHandler)))
//mux.HandleFunc("GET /cart/checkout", CookieCartIdHandler(s.ProxyHandler(s.HandleCheckout)))
//mux.HandleFunc("GET /cart/confirmation/{orderId}", CookieCartIdHandler(s.ProxyHandler(s.HandleConfirmation)))
handleFunc("GET /cart/byid/{id}", CartIdHandler(s.ProxyHandler(s.GetCartHandler)))
handleFunc("POST /cart/byid/{id}", CartIdHandler(s.ProxyHandler(s.AddSkuRequestHandler)))
cmd/cart/projection.go
+61
View File
@@ -0,0 +1,61 @@
package main
import (
"git.k6n.net/mats/platform/catalog"
)
// catalogProjectionCache is the cart's per-pod, cold-start-ready catalog
// projection cache, backed by platform/catalog.ProjectionStore. It consumes the
// catalog.projection_published wire — a full snapshot (begin/chunk/end, framed by
// epoch) plus incremental deltas — into its OWN local .bin and serves catalog
// facts by SKU (price, tax_class, inventory_tracked, image, …) at add-to-cart /
// checkout-reserve decisions. Stock is NOT cached — queried synchronously from
// inventory per docs/inventory-shape.md.
//
// Clustering: the cart runs N replicas. Each pod has its OWN exclusive bus queue
// (rabbit.ListenToPattern declares an exclusive server-named queue, so every pod
// receives the full stream) and its OWN pod-local .bin. It's a replicated read
// cache — no leader, no shared volume; N pods writing one file would corrupt it.
// See docs/catalog-projection.md.
//
// The cart stores the full catalog.Projection (identity transform): its
// add-to-cart overlay (projection_overlay.go) consumes nearly every field, so
// there's nothing to subset. Deletes ride as tombstones in the store's overlay
// (IsDeleted) so a removed SKU isn't re-fetched before the next snapshot folds
// the delete into the base. Cold-grace: an SKU not yet in the base/overlay
// resolves via the existing PRODUCT_BASE_URL HTTP fetch + overlay.
type catalogProjectionCache struct {
store *catalog.ProjectionStore[catalog.Projection]
}
// identityProjection is the cart's mandatory transform — it stores the full
// Projection because the overlay uses almost all of it.
func identityProjection(p catalog.Projection) catalog.Projection { return p }
// newCatalogProjectionCache opens the per-pod store under dir. dir MUST be
// pod-local (container fs / an emptyDir in k8s) — never a shared volume.
func newCatalogProjectionCache(dir string) (*catalogProjectionCache, error) {
s, err := catalog.NewProjectionStore(dir, "cart-projection.bin", identityProjection, nil)
if err != nil {
return nil, err
}
return &catalogProjectionCache{store: s}, nil
}
// HandleFrame feeds one catalog.projection_published event (snapshot frame or
// delta) into the store; framing/epoch ordering live in platform/catalog.
func (c *catalogProjectionCache) HandleFrame(meta map[string]string, payload []byte) error {
return c.store.HandleFrame(meta, payload)
}
func (c *catalogProjectionCache) Get(sku string) (catalog.Projection, bool) { return c.store.Get(sku) }
// IsDeleted reports whether the bus has explicitly deleted sku (overlay
// tombstone) — call sites skip the HTTP fallback for it.
func (c *catalogProjectionCache) IsDeleted(sku string) bool { return c.store.IsDeleted(sku) }
// Len reports cached entries (base + overlay) — debug/log gauge only.
func (c *catalogProjectionCache) Len() int {
_, base, overlay := c.store.Stats()
return base + overlay
}