An AWS AppSync Merged API combines two source GraphQL APIs, each backed by its own Amazon DynamoDB table, into one IAM-protected endpoint that merges automatically.
Two AWS AppSync source GraphQL APIs, an Orders API and a Customers API, each read from their own Amazon DynamoDB table through an
APPSYNC_JS resolver. An AWS AppSync Merged API associates both with AUTO_MERGE and exposes one AWS_IAM endpoint.The Customers schema adds an
Order.customer field to the Order type owned by the Orders API, so one GraphQL query returns an order and its customer from two tables.The merge role can only reach these two source APIs and their associations. No AWS Lambda function sits in the request path.
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Clone repo
git clone https://github.com/aws-samples/serverless-patterns/cd serverless-patterns/appsync-merged-api/typescript/cdkDeploy
npm installnpx cdk bootstrapnpx cdk deployTesting
See the GitHub repo for detailed testing instructions.
Cleanup
npx cdk destroyCreated by:
