request-mapping-template.vtl

#set($id = $ctx.stash.get("locationId")+"-"+$context.stash.get("owner"))
{
    "operation": "PutItem",
    "key": {
        "id": $util.dynamodb.toDynamoDBJson($id),
        "typeName": $util.dynamodb.toDynamoDBJson("FAVORITE")
    },
    "attributeValues": {
    	"owner": $util.dynamodb.toDynamoDBJson($context.stash.get("owner")),
        "locationId": $util.dynamodb.toDynamoDBJson($context.stash.get("locationId"))
    }
}