AWS AppSync DataSource Resolver scenarios with scenarios: 'how to read property of undefined'
I've searched everywhere and can't find a clear answer. I need some guidance on I just started working with After trying multiple solutions online, I still can't figure this out. I'm currently working with AWS AppSync to build a GraphQL API for my application, and I'm working with an scenario with a specific resolver configuration. My resolver is supposed to interact with a DynamoDB table, but I'm getting the behavior message: `"want to read property 'id' of undefined"` when I try to query data. The relevant part of my resolver looks like this: ```json { "version": "2018-05-29", "operation": "GET", "key": { "id": $ctx.args.id } } ``` I have confirmed that the `id` being passed from the GraphQL query is indeed defined and exists in the DynamoDB table. Here’s the query I’m using to call this resolver: ```graphql query GetItem($id: ID!) { getItem(id: $id) { id name description } } ``` To isolate the scenario, I added logging in the resolver to see what `$ctx.args` contains. The log output shows that `$ctx.args` is populated correctly with the `id`, but it seems like the mapping template is not resolving properly. Additionally, I checked the IAM permissions and I’ve ensured that the role associated with the AppSync service has the necessary `dynamodb:GetItem` permission for the table. I even tried changing the `operation` to `QUERY` and adjusting the resolver, but I'm still working with the same behavior. Is there something I'm missing in the resolver's mapping template that could cause this undefined property behavior? Any guidance would be greatly appreciated! My development environment is Windows. I'm working in a Debian environment. This is for a web app running on Debian. Could this be a known issue?