chore: add request cache

.golangci.yaml

@@ -51,6 +51,8 @@ linters-settings:
         disabled: true
       - name: early-return
         disabled: true
+      - name: disable-stuttering-check
+        disabled: true
   gocritic:
     disabled-checks:
       - ifElseChain

go.mod

@@ -80,6 +80,7 @@ require (
 	github.com/h2non/filetype v1.1.3
 	github.com/improbable-eng/grpc-web v0.15.0
 	github.com/mssola/useragent v1.0.0
+	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/pkg/errors v0.9.1
 	go.deanishe.net/favicon v0.1.0
 	go.uber.org/zap v1.21.0

go.sum

@@ -422,6 +422,8 @@ github.com/openzipkin/zipkin-go v0.2.1/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnh
 github.com/openzipkin/zipkin-go v0.2.2/go.mod h1:NaW6tEwdmWMaCDZzg8sh+IBNOxHMPnhQw8ySjnjRyN4=
 github.com/pact-foundation/pact-go v1.0.4/go.mod h1:uExwJY4kCzNPcHRj+hCR/HBbOOIwwtUjcrb0b5/5kLM=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
+github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
+github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
 github.com/pborman/uuid v1.2.0/go.mod h1:X/NO0urCmaxf9VXbdlT7C2Yzkj2IKimNn4k+gtPdI/k=
 github.com/pelletier/go-toml v1.7.0/go.mod h1:vwGMzjaWMwyfHwgIBhI2YUM4fB6nL6lVAvS1LBMMhTE=
 github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZR9tGQ=

plugin/license/cache.go

@@ -0,0 +1,24 @@
+package license
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/patrickmn/go-cache"
+)
+
+var (
+	licenseCache = cache.New(24*time.Hour, 24*time.Hour)
+)
+
+func SetLicenseCache(licenseKey, instanceName string, license LicenseKey) {
+	licenseCache.Set(fmt.Sprintf("%s-%s", licenseKey, instanceName), license, 24*time.Hour)
+}
+
+func GetLicenseCache(licenseKey, instanceName string) *LicenseKey {
+	cache, ok := licenseCache.Get(fmt.Sprintf("%s-%s", licenseKey, instanceName))
+	if !ok {
+		return nil
+	}
+	return cache.(*LicenseKey)
+}

plugin/license/license.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"time"
 
 	"github.com/pkg/errors"
 )
@@ -21,7 +22,7 @@ const (
 	subscriptionProProductID = 98995
 )
 
-type licenseKey struct {
+type LicenseKey struct {
 	ID        int32   `json:"id"`
 	Status    string  `json:"status"`
 	Key       string  `json:"key"`
@@ -29,7 +30,7 @@ type licenseKey struct {
 	ExpiresAt *string `json:"updated_at"`
 }
 
-type licenseKeyMeta struct {
+type LicenseKeyMeta struct {
 	StoreID       int32  `json:"store_id"`
 	OrderID       int32  `json:"order_id"`
 	OrderItemID   int32  `json:"order_item_id"`
@@ -45,15 +46,15 @@ type licenseKeyMeta struct {
 type ValidateLicenseKeyResponse struct {
 	Valid      bool            `json:"valid"`
 	Error      *string         `json:"error"`
-	LicenseKey *licenseKey     `json:"license_key"`
+	LicenseKey *LicenseKey     `json:"license_key"`
-	Meta       *licenseKeyMeta `json:"meta"`
+	Meta       *LicenseKeyMeta `json:"meta"`
 }
 
 type ActiveLicenseKeyResponse struct {
 	Activated  bool            `json:"activated"`
 	Error      *string         `json:"error"`
-	LicenseKey *licenseKey     `json:"license_key"`
+	LicenseKey *LicenseKey     `json:"license_key"`
-	Meta       *licenseKeyMeta `json:"meta"`
+	Meta       *LicenseKeyMeta `json:"meta"`
 }
 
 func ValidateLicenseKey(licenseKey string, instanceName string) (*ValidateLicenseKeyResponse, error) {
@@ -97,6 +98,7 @@ func ValidateLicenseKey(licenseKey string, instanceName string) (*ValidateLicens
 			return nil, errors.New("invalid store or product id")
 		}
 	}
+	licenseCache.Set("key", "value", 24*time.Hour)
 	return &response, nil
 }