added traefik auth plugin base config

api/basket.go

@@ -0,0 +1,36 @@
+package api
+
+import (
+	"fmt"
+
+	def "git.pbiernat.dev/egommerce/api-entities/http"
+	"github.com/go-redis/redis/v8"
+)
+
+func NewBasketAPI(ua string, redis *redis.Client) *BasketAPI {
+	return &BasketAPI{NewHttpClient(ua, redis)}
+}
+
+type BasketAPI struct {
+	httpClient *HttpClient
+}
+
+func (a *BasketAPI) GetBasket(basketID string) (*def.GetBasketResponse, error) {
+	req := &def.GetBasketRequest{BasketID: basketID}
+	res := new(def.GetBasketResponse)
+	if err := a.httpClient.SendGet("basket-svc", "/api/v1/basket", req, res); err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}
+
+func (a *BasketAPI) GetBasketItems(basketID string) ([]*def.GetBasketItemsResponse, error) {
+	url := fmt.Sprintf("/api/v1/basket/%s/items", basketID)
+	var res []*def.GetBasketItemsResponse
+	if err := a.httpClient.SendGet("basket-svc", url, nil, &res); err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}

api/http.go

@@ -0,0 +1,95 @@
+package api
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"math/rand"
+	"net/http"
+
+	"github.com/go-redis/redis/v8"
+)
+
+type HttpClient struct {
+	ua    string
+	redis *redis.Client
+}
+
+func NewHttpClient(ua string, redis *redis.Client) *HttpClient {
+	return &HttpClient{ua, redis}
+}
+
+func (c *HttpClient) SendGet(api, url string, data, out any) error {
+	res, err := c.sendRequest(api, url, http.MethodGet, data)
+	if err != nil {
+		return err
+	}
+
+	decoder := json.NewDecoder(res.Body)
+	err = decoder.Decode(&out)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (c *HttpClient) SendPost(api, url string, data, out any) (any, error) {
+	res, err := c.sendRequest(api, url, http.MethodPost, data)
+	if err != nil {
+		return nil, err
+	}
+
+	decoder := json.NewDecoder(res.Body)
+	err = decoder.Decode(out)
+	if err != nil {
+		return nil, err
+	}
+
+	return out, nil
+}
+
+func (c *HttpClient) sendRequest(api, url, method string, data any) (*http.Response, error) {
+	apiUrl := c.getApiUrl(api) + url
+	client := &http.Client{}
+
+	json, err := json.Marshal(&data)
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequest(method, apiUrl, bytes.NewBuffer(json))
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("User-Agent", c.ua)
+	res, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	// defer res.Body.Close()
+
+	return res, nil
+}
+
+func (c *HttpClient) getApiUrl(api string) string {
+	ctx, key, apiAddr := context.Background(), "internal__"+api+"__ips", api
+	// FIXME: key name ^^
+	cmd := c.redis.LLen(ctx, key)
+	if cmd.Err() == nil {
+		len := int(cmd.Val())
+		if len == 0 {
+			apiAddr = c.redis.LIndex(ctx, key, 0).Val()
+		} else {
+			apiAddr = c.redis.LIndex(ctx, key, int64(rand.Intn(len-0)+0)).Val()
+		}
+	}
+
+	if apiAddr == "" {
+		apiAddr = api // default api run on 80 int port
+	}
+
+	return "http://" + apiAddr
+}

api/pricing.go

@@ -0,0 +1,26 @@
+package api
+
+import (
+	"fmt"
+
+	def "git.pbiernat.dev/egommerce/api-entities/http"
+	"github.com/go-redis/redis/v8"
+)
+
+func NewPricingAPI(ua string, redis *redis.Client) *PricingAPI {
+	return &PricingAPI{NewHttpClient(ua, redis)}
+}
+
+type PricingAPI struct {
+	httpClient *HttpClient
+}
+
+func (a *PricingAPI) GetProductPrice(productID int) (*def.ProductPriceResponse, error) {
+	url := fmt.Sprintf("/api/v1/product/%d", productID)
+	res := new(def.ProductPriceResponse)
+	if err := a.httpClient.SendGet("pricing-svc", url, nil, res); err != nil {
+		return nil, err
+	}
+
+	return res, nil
+}

consul/discovery.go

@@ -10,24 +10,27 @@ import (
 )
 
 type Service struct {
-	Name    string
+	Name       string
-	Address string
+	Address    string
-	appID   string
+	appID      string
-	domain  string
+	domain     string
-	port    int
+	pathPrefix string
-	ttl     time.Duration
+	port       int
-	agent   *consul.Agent
+	ttl        time.Duration
-	kv      *consul.KV
+	agent      *consul.Agent
+	kv         *consul.KV
+	catalog    *consul.Catalog
 }
 
 var ErrServiceUnavailable = fmt.Errorf("Service is unavailable")
 
-func NewService(servAddr, id, name, hostname, domain string, appPort int) (*Service, error) {
+func NewService(servAddr, id, name, hostname, domain, pathPrefix string, appPort int) (*Service, error) {
 	s := new(Service)
 	s.Name = name
 	s.Address = hostname
 	s.appID = id
 	s.domain = domain
+	s.pathPrefix = pathPrefix
 	s.port = appPort
 	s.ttl = time.Second * 15
 
@@ -37,6 +40,7 @@ func NewService(servAddr, id, name, hostname, domain string, appPort int) (*Serv
 	}
 	s.agent = client.Agent()
 	s.kv = client.KV()
+	s.catalog = client.Catalog()
 
 	return s, nil
 }
@@ -104,6 +108,10 @@ func (s *Service) KV() *consul.KV {
 	return s.kv
 }
 
+func (s *Service) Catalog() *consul.Catalog {
+	return s.catalog
+}
+
 func (s *Service) healthCheck() (bool, error) {
 	alive := func() bool {
 		client := &http.Client{}
@@ -139,27 +147,19 @@ func (s *Service) healthCheck() (bool, error) {
 func (s *Service) getTags() []string {
 	tags := []string{
 		"traefik.enable=true",
-		"traefik.http.routers." + s.Name + ".rule=Header(`X-API-SERVICE`, `" + s.Name + "`)",
+		"traefik.http.routers." + s.Name + ".rule=PathPrefix(`" + s.pathPrefix + "`)",
 		"traefik.http.routers." + s.Name + ".entryPoints=https",
 		"traefik.http.routers." + s.Name + ".tls=true",
 		"traefik.http.routers." + s.Name + ".service=" + s.Name,
-		"traefik.http.routers." + s.Name + ".middlewares=compress,requestid",
+		"traefik.http.routers." + s.Name + ".middlewares=requestid,stripprefix_" + s.Name,
 		"traefik.http.services." + s.Name + ".loadbalancer.server.scheme=http",
 		"traefik.http.services." + s.Name + ".loadbalancer.server.port=" + strconv.Itoa(s.port),
-		"traefik.http.middlewares.compress.compress=true",
+		"traefik.http.services." + s.Name + ".loadbalancer.passhostheader=false",
+		"traefik.http.middlewares.auth.forwardauth.address=https://test/auth",
 		"traefik.http.middlewares.requestid.plugin.requestid.headerName=X-Request-ID",
-		// "traefik.http.middlewares.cors.headers.accesscontrolallowmethods=*",
+		"traefik.http.middlewares.stripprefix_" + s.Name + ".stripprefix.prefixes=" + s.pathPrefix,
-		// "traefik.http.middlewares.cors.headers.accesscontrolalloworiginlist=*",
-		// "traefik.http.middlewares.cors.headers.accessControlExposeHeaders=true",
-		// "traefik.http.middlewares.cors.headers.accesscontrolmaxage=100",
-		// "traefik.http.middlewares.cors.headers.addvaryheader=true",
 		"traefik.tls.certificates.certfile=/certs/client.cert",
 		"traefik.tls.certificates.keyfile=/certs/client.key",
-		// "traefik.http.services." + s.Name + ".loadbalancer.passhostheader=false",
-		// "traefik.http.services." + s.Name + ".loadbalancer.servers." + fullName + "=" + bFullAddr,
-		// "traefik.http.services." + s.Name + ".loadbalancer.servers." + fullName + ".url=" + bFullAddr,
-		// "traefik.http.services." + s.Name + ".loadbalancer.healthcheck.path=/health",
-		// "traefik.http.services." + s.Name + ".loadbalancer.healthcheck.interval=10s",
 	}
 
 	return tags