Name:
interface
Value:
Amplify has re-imagined the way frontend developers build fullstack applications. Develop and deploy without the hassle.

Page updated Apr 29, 2024

Schema updates

Amplify Flutter v1 is deprecated as of April 30th, 2025. No new features or bug fixes will be added. Dependencies may become outdated and potentially introduce compatibility issues.

Please use the latest version (v2) of Amplify Flutter to get started.

If you are currently using v1, follow these instructions to upgrade to v2.

Update the schema

Edit the schema and re-run amplify codegen models.

enum PostStatus {
ACTIVE
INACTIVE
STAGED # new enum value
}
type Post @model {
id: ID!
title: String!
rating: Int!
status: PostStatus!
}

This will evaluate the changes and create a versioned hash if any changes are detected which impact the underlying on-device storage structure. For example, types being added/deleted or fields becoming required/optional. DataStore evaluates this version on startup and if there are changes the local items on device will be removed and a full sync from AppSync will take place if you are syncing with the cloud.

Local migrations

Local migrations (i.e. migrations controlled by the developer) on device are not currently supported. Therefore, your local data will be lost when the schema changes.

If you are syncing with the cloud the structure and items of that data in your AppSync backend will not be touched as part of this process.