add a couple post endpoints + /timelines/home

web/api/posts/get_post.go

@@ -0,0 +1,44 @@
+package posts
+
+import (
+	"net/http"
+
+	"git.sleepycat.moe/sam/mercury/internal/database/sql"
+	"git.sleepycat.moe/sam/mercury/web/api"
+	"github.com/go-chi/chi/v5"
+	"github.com/oklog/ulid/v2"
+	"github.com/rs/zerolog/log"
+)
+
+func (app *App) GetID(w http.ResponseWriter, r *http.Request) (api.Post, error) {
+	ctx := r.Context()
+	id, err := ulid.Parse(chi.URLParamFromCtx(ctx, "postID"))
+	if err != nil {
+		return api.Post{}, api.Error{Code: api.ErrBlogNotFound}
+	}
+
+	conn, err := app.Database.Acquire(ctx)
+	if err != nil {
+		log.Err(err).Msg("acquiring connection")
+		return api.Post{}, err
+	}
+	defer conn.Release()
+
+	post, err := app.Post(conn).ByID(ctx, id)
+	if err != nil {
+		if err == sql.ErrNotFound {
+			return api.Post{}, api.Error{Code: api.ErrBlogNotFound}
+		}
+
+		log.Err(err).Str("id", id.String()).Msg("fetching post from database")
+		return api.Post{}, err
+	}
+
+	blog, err := app.Blog(conn).ByID(ctx, post.BlogID)
+	if err != nil {
+		log.Err(err).Str("id", post.BlogID.String()).Msg("fetching blog from database")
+		return api.Post{}, err
+	}
+
+	return api.DBPostToPost(post, blog), nil
+}