IST time in AWS appsync pipeline resolver function


I have a pipeline resolver which should automatically fetch the current IST date time from $util.time in aws appsync,

$util.time.nowISO8601() returns the UTC time, It works perfectly but then i should setup time conversion on my app frontend

I get an error when trying $util.time.nowFormatted("yyyy-MM-dd HH:mm:ssZ", "Asia/Kolkatta") "message": "Cannot return null for non-nullable type: 'AWSDateTime' within parent

asked 2 years ago499 views
1 Answer
Accepted Answer

I believe the root cause is a typo in ZoneId. According to utility documentation formats is based on DateTimeFormatter which uses TZDB IDs for TimeZones. According to this it should be either Asia/Calcutta or Asia/Kolkata. You can find a helpful list of time zones here

answered 2 years ago
profile picture
reviewed 3 months ago
  • Thanks for the answer, but I get following error.

    can't serialize value (/createpayInfo/date) : Unable to serialize 2022-03-28 12:34:59+0530 as a valid DateTime Object.

    Changing the type from AWSDateTime to String fixed the issue. Seems other time zone value is not accepted when value is inserted in dynamodb.

You are not logged in. Log in to post an answer.

A good answer clearly answers the question and provides constructive feedback and encourages professional growth in the question asker.

Guidelines for Answering Questions