👀 Views: 2 💬 Answers: 1 📅 Created: 2025-06-10

aws appsync dynamodb JavaScript

I'm learning this framework and This might be a silly question, but I'm relatively new to this, so bear with me... I'm working with an scenario with my AWS AppSync GraphQL API where my resolver is unable to retrieve data from a DynamoDB table. The resolver is configured to use a `DynamoDB` data source, but when I execute a query, I get an behavior message saying `Not Authorized`. I've ensured that my IAM role has appropriate permissions to access the DynamoDB table, but I still run into this scenario. Here’s how my IAM role looks: ```json { "Version": "2012-10-17", "Statement": [ { "Effect": "Allow", "Action": ["dynamodb:GetItem", "dynamodb:Query"], "Resource": "arn:aws:dynamodb:us-west-2:123456789012:table/MyTable" } ] } ``` The resolver mapping template is set up as follows: ```vtl { "version": "2017-02-28", "operation": "Query", "query": { "expression": "#pk = :pk", "expressionNames": { "#pk": "partitionKey" }, "expressionValues": { ":pk": { "S": "$ctx.args.partitionKey" } } } } ``` I've also checked that my GraphQL schema has the necessary authorization rules in place: ```graphql type Query { getItem(partitionKey: String!): Item @aws_iam } ``` When I test the query in the AppSync console, I'm passing the correct `partitionKey` value, but I still see the authorization behavior. I also tried using the `@aws_api_key` directive for testing purposes, but that didn't resolve the scenario. I've verified that the DynamoDB table exists and is in the correct region. Any guidance on what might be causing the `Not Authorized` behavior would be greatly appreciated! This is part of a larger API I'm building. Any help would be greatly appreciated! This is happening in both development and production on Windows 10. Thanks for your help in advance! Any advice would be much appreciated.