For an Amplify Datastore setup, is there a way to turn off AWS AppSync to just work locally?

Question

I'm using Amplify Datastore with AppSync enabled. Data syncing is working between local and cloud, but having to execute amplify push to update cloud during development can suck up a lot of time.

How can I turn off AWS AppSync?

Answer 1

Yes! DataStore can be used with or without any cloud synchronization.

Android

Cloud sync is enabled when you add an API plugin. To disable cloud sync, don't add AWSApiPlugin():

Amplify.addPlugin(AWSDataStorePlugin())

// Comment out this line:
// Amplify.addPlugin(AWSApiPlugin())

Amplify.configure(applicationContext)

iOS

Sync is enabled when there is an API plugin present. To disable sync, do not add AWSAPIPlugin():

let dataStorePlugin =
    AWSDataStorePlugin(modelRegistration: AmplifyModels())
try Amplify.add(plugin: dataStorePlugin)

// Comment out this line:
// try Amplify.add(plugin: AWSAPIPlugin())

try Amplify.configure()

JavaScript

The approach is slightly different. Look for any API configurations in the aws-exports.js file, and remove them. Specifically, you should remove any config entries with aws_appsync_* in the prefix:

const awsmobile = {
    // ...
    "aws_appsync_graphqlEndpoint": "https://yourid.appsync-api.us-east-1.amazonaws.com/graphql",
    "aws_appsync_region": "us-east-1",
    "aws_appsync_authenticationType": "AMAZON_COGNITO_USER_POOLS",
    // ...
};