add users logic

users/internal/transport/http/server.go

@@ -0,0 +1,41 @@
+// Package http exposes the userservice over HTTP: registration, login, and a
+// token-protected /me. It owns routing, request decoding, and error mapping;
+// business rules live in the usecase layer.
+package http
+
+import (
+	"log/slog"
+	"net/http"
+
+	"github.com/emil28092005/SciMesh/users/internal/auth"
+	"github.com/emil28092005/SciMesh/users/internal/usecase"
+)
+
+// UseCases bundles the application services the handlers drive.
+type UseCases struct {
+	Register *usecase.Register
+	Login    *usecase.Login
+	Users    usecase.UserRepository
+}
+
+// NewServer wires the routes and the middleware stack and returns the handler.
+// The issuer verifies tokens for the protected /me route.
+func NewServer(log *slog.Logger, uc UseCases, issuer auth.Issuer) http.Handler {
+	h := &Handlers{
+		register: uc.Register,
+		login:    uc.Login,
+		users:    uc.Users,
+		log:      log,
+	}
+
+	mux := http.NewServeMux()
+	// Method-aware patterns (Go 1.22+): a GET to /register is a 405, not a match.
+	mux.HandleFunc("GET /health", h.handleHealth)
+	mux.HandleFunc("POST /register", h.handleRegister)
+	mux.HandleFunc("POST /login", h.handleLogin)
+	// /me proves a token round-trips; it sits behind JWT auth.
+	mux.Handle("GET /me", chain(http.HandlerFunc(h.handleMe), withJWT(issuer)))
+
+	// Outermost first: every request gets an ID and an access-log line.
+	return chain(mux, withRequestID, withAccessLog(log))
+}