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|
package api
import (
"errors"
"fmt"
"net/http"
"path/filepath"
"strings"
"github.com/mediocregopher/blog.mediocregopher.com/srv/api/apiutils"
"github.com/mediocregopher/blog.mediocregopher.com/srv/post"
)
func (a *api) postHandler() http.Handler {
return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
id := strings.TrimSuffix(filepath.Base(r.URL.Path), ".html")
storedPost, err := a.params.PostStore.GetByID(id)
if errors.Is(err, post.ErrPostNotFound) {
http.Error(rw, "Post not found", 404)
return
} else if err != nil {
apiutils.InternalServerError(
rw, r, fmt.Errorf("fetching post with id %q: %w", id, err),
)
return
}
renderablePost, err := post.NewRenderablePost(a.params.PostStore, storedPost)
if err != nil {
apiutils.InternalServerError(
rw, r, fmt.Errorf("constructing renderable post with id %q: %w", id, err),
)
return
}
if err := a.params.PostHTTPRenderer.Render(rw, renderablePost); err != nil {
apiutils.InternalServerError(
rw, r, fmt.Errorf("rendering post with id %q: %w", id, err),
)
return
}
})
}
|
