Add Blog Posts CRUD with SQLite

- Add modernc.org/sqlite (pure Go, no CGO) - Create models package with Post struct - Implement SQLite connection and schema auto-creation - Add CRUD methods to database package - Create post handlers with JSON API - Register API routes: GET/POST/PUT/DELETE /api/v1/posts - Set default DBURL to file:./data.db with WAL mode
2025-12-27 12:43:30 +07:00
parent fb347b96df
commit f7ab09c2c3
8 changed files with 474 additions and 10 deletions
--- a/internal/handlers/posts.go
+++ b/internal/handlers/posts.go
@@ -0,0 +1,137 @@
+package handlers
+
+import (
+	"net/http"
+	"strconv"
+
+	"git.eeqj.de/sneak/gohttpserver/internal/models"
+	"github.com/go-chi/chi"
+)
+
+func (s *Handlers) HandleListPosts() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		posts, err := s.params.Database.ListPosts(r.Context())
+		if err != nil {
+			s.log.Error("failed to list posts", "error", err)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		if posts == nil {
+			posts = []*models.Post{}
+		}
+
+		s.respondJSON(w, r, posts, http.StatusOK)
+	}
+}
+
+func (s *Handlers) HandleGetPost() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			s.respondJSON(w, r, map[string]string{"error": "invalid id"}, http.StatusBadRequest)
+			return
+		}
+
+		post, err := s.params.Database.GetPost(r.Context(), id)
+		if err != nil {
+			s.log.Error("failed to get post", "error", err, "id", id)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		if post == nil {
+			s.respondJSON(w, r, map[string]string{"error": "not found"}, http.StatusNotFound)
+			return
+		}
+
+		s.respondJSON(w, r, post, http.StatusOK)
+	}
+}
+
+func (s *Handlers) HandleCreatePost() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		var req models.CreatePostRequest
+		if err := s.decodeJSON(w, r, &req); err != nil {
+			s.respondJSON(w, r, map[string]string{"error": "invalid request body"}, http.StatusBadRequest)
+			return
+		}
+
+		if req.Title == "" || req.Body == "" || req.Author == "" {
+			s.respondJSON(w, r, map[string]string{"error": "title, body, and author are required"}, http.StatusBadRequest)
+			return
+		}
+
+		post, err := s.params.Database.CreatePost(r.Context(), &req)
+		if err != nil {
+			s.log.Error("failed to create post", "error", err)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		s.respondJSON(w, r, post, http.StatusCreated)
+	}
+}
+
+func (s *Handlers) HandleUpdatePost() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			s.respondJSON(w, r, map[string]string{"error": "invalid id"}, http.StatusBadRequest)
+			return
+		}
+
+		var req models.UpdatePostRequest
+		if err := s.decodeJSON(w, r, &req); err != nil {
+			s.respondJSON(w, r, map[string]string{"error": "invalid request body"}, http.StatusBadRequest)
+			return
+		}
+
+		post, err := s.params.Database.UpdatePost(r.Context(), id, &req)
+		if err != nil {
+			s.log.Error("failed to update post", "error", err, "id", id)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		if post == nil {
+			s.respondJSON(w, r, map[string]string{"error": "not found"}, http.StatusNotFound)
+			return
+		}
+
+		s.respondJSON(w, r, post, http.StatusOK)
+	}
+}
+
+func (s *Handlers) HandleDeletePost() http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		idStr := chi.URLParam(r, "id")
+		id, err := strconv.ParseInt(idStr, 10, 64)
+		if err != nil {
+			s.respondJSON(w, r, map[string]string{"error": "invalid id"}, http.StatusBadRequest)
+			return
+		}
+
+		post, err := s.params.Database.GetPost(r.Context(), id)
+		if err != nil {
+			s.log.Error("failed to get post for delete", "error", err, "id", id)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		if post == nil {
+			s.respondJSON(w, r, map[string]string{"error": "not found"}, http.StatusNotFound)
+			return
+		}
+
+		if err := s.params.Database.DeletePost(r.Context(), id); err != nil {
+			s.log.Error("failed to delete post", "error", err, "id", id)
+			s.respondJSON(w, r, map[string]string{"error": "internal server error"}, http.StatusInternalServerError)
+			return
+		}
+
+		s.respondJSON(w, r, nil, http.StatusNoContent)
+	}
+}