Add utils/date module.

1 files changed, 4 insertions, 3 deletions

diff --git a/readers/article.rkt b/readers/article.rkt
index df5e8e8..c60de16 100644
--- a/readers/article.rkt
+++ b/readers/article.rkt
@@ -3,7 +3,8 @@
 (provide read-article)
 
 (require "../entities/article.rkt")
-(require (only-in typed/srfi/19 string->date))
+(require (only-in "../utils/date.rkt" string->date))
+
 (require typed/json)
 (require typed/syntax/readerr)
 
@@ -19,9 +20,9 @@
      (define timestamp
        (let ([timestamp (hash-ref jse 'timestamp (thunk (k "timestamp not found")))])
          (unless (string? timestamp) (k "timestamp must be a string"))
-         (with-handlers ([exn:fail? (const #f)])
+         (with-handlers ([exn:fail? (lambda (_e)
+                                      (k "timestamp must be a iso8600 string"))])
            (string->date timestamp "~Y-~m-~dT~H:~M:~S~z"))))
-     (unless (date? timestamp) (k "timestamp must be a iso8600 string"))
 
      (define hash (hash-ref jse 'hash (thunk (k "hash not found"))))
      (unless (string? hash) (k "hash must be a string"))