TemporalDateTime wrong on each device

[harrynguyen2510]

Description

I'm building a chat app and having issues about timing of message

Here is the function to create message

    DateTime now = DateTime.now();
    String dateUpload = convertDateString(now.toUtc());
    String timeUpload = convertFullTimeString(now.toUtc());

    TemporalDateTime temporalNowUTC = TemporalDateTime.now();

    MessageItem newMessage = MessageItem(
      contenttype: contenttype,
      content: content,
      replyFromMessageid: replyonmessageid,
      sentbyUserID: currentUser.id,
      onChatroomID: chatroom.id,
      isforward: isForward,
      withPollID: withPollID,
      createdDate: dateUpload,
      createdTime: timeUpload,
      createdAt: temporalNowUTC,
      updatedAt: temporalNowUTC,
    );

    String newMessageid = newMessage.id;

    await Amplify.DataStore.save(newMessage);

As you can see I get TemporalDateTime.now() to take UTC date time on current device then upload to Amplify Datastore,
When I open Datastore content board, sort list of messages in latest-oldest order to observe the timing of message uploading
I found message of phone A, time upload is right, because new message adding to the board is on top, but not for B, message from B is added somewhere below (even B sent message after A)
A Quick notice that, messages from A is formed together in order on board, while B has formed as well, but this doesn't alway happen
This issue results in like this:
For example, from

• On chat: Message A, A, A, B, B, A,B (right order, because list.add(...)
• Reload from Cloud: B,B,B, A, A,A

Categories

• Analytics
• API (REST)
• API (GraphQL)
• Auth
• Authenticator
• DataStore
• Notifications (Push)
• Storage

Steps to Reproduce

No response

Screenshots

Platforms

• iOS
• Android
• Web
• macOS
• Windows
• Linux

Flutter Version

3.19.1

Amplify Flutter Version

12.10.1

Deployment Method

Amplify CLI

Schema

type MessageItem @model @auth(rules: [{allow: public}]) {
  id: ID!
  content: String
  filekey: [String]
  hasFile: Boolean
  contenttype: String!
  replyFromMessageid: String
  sentbyUserID: String!
  onChatroomID: String!
  isforward: Boolean
  isDeleted: Boolean
  withPollID: String
  createdTime: String
  createdDate: String
  createdAt: AWSDateTime
  updatedAt: AWSDateTime
}

[Equartey]

Hi @harrynguyen2510,

I understand you're seeing inconsistent ordering of messages in your app.

It's unclear to me how you are sorting them. What value you are sorting by? By what method?

Also what do you mean by Datastore content board?

[harrynguyen2510]

Hi @Equartey thanks for reply, I have updated the Datastore content board image above, please take a look at it. It's high chance that the root of issue is from TemporalDateTime when creating message

[harrynguyen2510]

any update?

[Jordan-Nelson]

@harrynguyen2510 can you fill out the reproduction steps section in the issue template? Thanks

[Jordan-Nelson]

@harrynguyen2510 if you are still facing this issue please fill out the reproduction steps in the issue template. Thanks.