Make product API versions independently installable

backend/product/auth/http/v1/endpoint/endpoint.go

@@ -0,0 +1,37 @@
+package endpoint
+
+import (
+	"context"
+	customermodel "git.sendico.io/tech/sxchnge/product/customers/model"
+	sessionmodel "git.sendico.io/tech/sxchnge/product/sessions/model"
+	"net/http"
+
+	"git.sendico.io/tech/sxchnge/product/auth/config"
+	"git.sendico.io/tech/sxchnge/product/auth/http/v1/response"
+	"git.sendico.io/tech/sxchnge/shared/logging"
+	"github.com/go-chi/chi/v5"
+)
+
+type (
+	RegistratorT  = func(chi.Router, string, http.HandlerFunc)
+	ResponderFunc = func(ctx context.Context, r *http.Request, session *sessionmodel.SessionIdentifier, account *customermodel.Account, accessToken *sresponse.TokenData) http.HandlerFunc
+)
+
+type HttpEndpointRouter struct {
+	logger      mlogger.Logger
+	apiEndpoint string
+	router      chi.Router
+	config      middleware.TokenConfig
+	signature   middleware.Signature
+}
+
+func NewHttpEndpointRouter(logger mlogger.Logger, apiEndpoint string, router chi.Router, config *middleware.TokenConfig, signature *middleware.Signature) *HttpEndpointRouter {
+	er := HttpEndpointRouter{
+		logger:      logger.Named("http"),
+		apiEndpoint: apiEndpoint,
+		router:      router,
+		signature:   *signature,
+		config:      *config,
+	}
+	return &er
+}

backend/product/auth/http/v1/endpoint/install.go

@@ -0,0 +1,55 @@
+package endpoint
+
+import (
+	"net/http"
+	"path"
+
+	"git.sendico.io/tech/sxchnge/product/auth/http/v1/response"
+	api "git.sendico.io/tech/sxchnge/shared/http"
+	"git.sendico.io/tech/sxchnge/shared/service"
+	"github.com/go-chi/chi/v5"
+	"go.uber.org/zap"
+)
+
+func (er *HttpEndpointRouter) chooseMethod(method api.HTTPMethod) RegistratorT {
+	switch method {
+	case api.Get:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Get(p, h) }
+	case api.Post:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Post(p, h) }
+	case api.Put:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Put(p, h) }
+	case api.Delete:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Delete(p, h) }
+	case api.Patch:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Patch(p, h) }
+	case api.Options:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Options(p, h) }
+	case api.Head:
+		return func(r chi.Router, p string, h http.HandlerFunc) { r.Head(p, h) }
+	default:
+		return nil
+	}
+}
+
+func (er *HttpEndpointRouter) endpoint(service mservice.Type, handler string) string {
+	return path.Join("/", er.apiEndpoint, service, handler)
+}
+
+func (er *HttpEndpointRouter) InstallHandler(service mservice.Type, endpoint string, method api.HTTPMethod, handler sresponse.HandlerFunc) {
+	ep := er.endpoint(service, endpoint)
+	hm := er.chooseMethod(method)
+	if hm == nil {
+		er.logger.Warn("Handler install skipped because method is unsupported",
+			zap.String("endpoint", ep),
+			zap.String("method", api.HTTPMethod2String(method)),
+		)
+		return
+	}
+	hndlr := func(w http.ResponseWriter, r *http.Request) {
+		res := handler(r)
+		res(w, r)
+	}
+	hm(er.router, ep, hndlr)
+	er.logger.Info("Handler installed", zap.String("endpoint", ep), zap.String("method", api.HTTPMethod2String(method)))
+}

backend/product/auth/http/v1/endpoint/token.go

@@ -0,0 +1,31 @@
+package endpoint
+
+import (
+	customermodel "git.sendico.io/tech/sxchnge/product/customers/model"
+	sessionmodel "git.sendico.io/tech/sxchnge/product/sessions/model"
+	"time"
+
+	"git.sendico.io/tech/sxchnge/product/auth/http/v1/response"
+	emodel "git.sendico.io/tech/sxchnge/product/auth/model"
+	"github.com/go-chi/jwtauth/v5"
+)
+
+func (er *HttpEndpointRouter) CreateAccessTokenForSession(user *customermodel.Account, session sessionmodel.SessionIdentifier) (sresponse.TokenData, error) {
+	ja := jwtauth.New(er.signature.Algorithm, er.signature.PrivateKey, er.signature.PublicKey)
+	_, res, err := ja.Encode(emodel.Account2ClaimsForSession(user, er.config.Expiration.Account, session))
+	token := sresponse.TokenData{
+		Token:      res,
+		Expiration: time.Now().Add(time.Duration(er.config.Expiration.Account) * time.Hour),
+	}
+	return token, err
+}
+
+func (er *HttpEndpointRouter) CreatePendingToken(user *customermodel.Account, ttlMinutes int) (sresponse.TokenData, error) {
+	ja := jwtauth.New(er.signature.Algorithm, er.signature.PrivateKey, er.signature.PublicKey)
+	_, res, err := ja.Encode(emodel.PendingAccount2Claims(user, ttlMinutes))
+	token := sresponse.TokenData{
+		Token:      res,
+		Expiration: time.Now().Add(time.Duration(ttlMinutes) * time.Minute),
+	}
+	return token, err
+}