Notify AWS AppSync subscribers of external database updates.
In working with AppSync, one of the common patterns is publishing “out-of-band” database updates to subscribers. An “out-of-band” update occurs when some system alters data independent of an AppSync mutation.
This pattern shows how to notify AWS AppSync subscribers of external database updates that aren't performed by client-side mutations.
The demonstration of this pattern consists of 3 parts - see the repo for more details.
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Clone repo
git clone https://github.com/aws-samples/serverless-patterns/cd serverless-patterns/appsync-notify-subscribers-of-database-updatesDeploy
sam buildsam deploy -g --capabilities CAPABILITY_AUTO_EXPAND CAPABILITY_IAMTesting
See the GitHub repo for detailed testing instructions.
Cleanup
1. Delete the stack:
sam delete --stack-name STACK_NAME.2. Confirm the stack has been deleted:
aws cloudformation list-stacks --query "StackSummaries[?contains(StackName,'STACK_NAME')].StackStatus"Created by:
