I'm stuck on the cloud resume challenge and need help connecting my DynamoDB to API Gateway using AWS SAM. I've split my logic into two functions: one for retrieving the visitor count from DynamoDB and another for updating it. My CORS setup is initially working, but I keep running into a 502 error when executing the Python code for the put function. I've double-checked my code and included the necessary DynamoDBCrudPolicy in my template.yaml. Any guidance would be greatly appreciated! Here's a snippet of my setup along with the code for both functions.
2 Answers
Just an idea, but if you're incrementing and writing to DynamoDB simultaneously, it could lead to race conditions, especially under heavy load. You might want to consider looking into offloading the increment operation directly to DynamoDB's atomic counters feature. Here's a link with more details: https://repost.aws/questions/QU9fLx1SUIRU6odFtgtIh6kA/dynamodb-atomic-counters.
Make sure to check the CloudWatch logs for your Lambda function. They can give you specific insights into what's causing the error. You can access them from the function's monitoring section in the AWS console.
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