Rene Nochebuena
3fcba82448
Runnable REST API exercising every micro-lib tier in a containerless setup: N-layer architecture, SQLite persistence, header-based auth simulating Firebase output, and bit-mask RBAC enforcement. What's included: - cmd/todo-api: minimal main delegating to application.Run - internal/application: full object graph wiring — launcher, sqlite, httpserver, httpmw stack, routes in BeforeStart - internal/domain: User entity, ResourceTodos constant, PermReadTodo/PermWriteTodo bit positions - internal/repository: TodoRepository, UserRepository, DBPermissionProvider (SQLite via modernc) - internal/service: TodoService, UserService with interface-based dependencies - internal/handler: TodoHandler, UserHandler using httputil adapters and valid for input validation - internal/middleware: Auth (X-User-ID → rbac.Identity) and Require (bit-mask permission gate) - logAdapter: bridges logz.Logger.With return type to httpmw.Logger interface - SQLite schema: users, user_role (bitmask), todos; migrations run in BeforeStart - Routes: POST /users (open), GET+POST /todos (RBAC), GET /users (RBAC) Tested-via: todo-api POC integration Reviewed-against: docs/adr/
38 lines
1.1 KiB
Go
38 lines
1.1 KiB
Go
package middleware
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import (
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"net/http"
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"code.nochebuena.dev/go/rbac"
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"code.nochebuena.dev/go/todo-api/internal/repository"
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)
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// Auth reads the X-User-ID request header, looks up the user in the database,
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// and stores an rbac.Identity in the context.
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//
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// Returns 401 if the header is absent or the user ID is not found — the two
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// cases are intentionally indistinguishable to callers.
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func Auth(userRepo repository.UserRepository) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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uid := r.Header.Get("X-User-ID")
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if uid == "" {
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http.Error(w, `{"code":"UNAUTHENTICATED","message":"missing X-User-ID header"}`,
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http.StatusUnauthorized)
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return
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}
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user, err := userRepo.FindByID(r.Context(), uid)
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if err != nil {
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http.Error(w, `{"code":"UNAUTHENTICATED","message":"user not found"}`,
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http.StatusUnauthorized)
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return
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}
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identity := rbac.NewIdentity(user.ID, user.Name, user.Email)
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ctx := rbac.SetInContext(r.Context(), identity)
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next.ServeHTTP(w, r.WithContext(ctx))
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})
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}
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}
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