Clojurians Log v2
graphql
Hi all, I'm a newbie and getting a baffling error when trying to add a custom scalar DateTime type to my schema. I'm trying to use clojure.java-time and I'm getting what I suspect is an error from the underyling Java that I don't understand: No single method: start of interface: java_time.interval.AnyInterval found for function: start of protocol: AnyInterval
My schema has:
:scalars
{:DateTime
{:parse :parse-datetime
:serialize :serialize-datetime}}
My parsers/serializers (assuming `[java-time :as jt]):
(defn parse-datetime
[s]
(when (string? s)
(try
(jt/offset-date-time s)
(catch Throwable _
nil))))
(defn serialize-datetime
[d]
(when (jt/offset-date-time? d)
(try
(str (jt/offset-date-time d))
(catch Throwable _
nil))))
And I'm compiling my schema with:
(`attach-scalar-transformers {:parse-datetime parse-datetime`
:serialize-datetime serialize-datetime})
Does this look familiar to anyone? The examples for lacinia don't include anything with a custom scalar, that I could find, and the only example with dates uses epoch milliseconds.
The schema seems to attach the transformers OK (at least in the repl), so I suspect this might be a clojure.java-time question. I'll ask in #clojure .
what format are your date times in?
strings
(i’ll continue in the other thread)