Error: dynamodb cannot read properties of undefined

Answered by Rafal Wilinski
What's Causing This Error
This is an error that you may run into in the Node.js environment. You may face it locally or even in a Node.js Lambda function. There is no true cause for this error, but it is typically caused when trying to read an item from DynamoDB when nothing is returned from the query or scan.
Consider the snippet below.
const { Items = [] } = await documentClient.scan(scanParams).promise(); // will throw error if there is no error for 0th index. console.log(Items[0].id);
Solution: Here's How To Resolve It
Try a few of the solutions listed below to see if they will solve your error.
- Ensure that the item you're trying to read from DynamoDB exists. You can use the optional params -
item?.id
. - Ensure that you have implemented proper error handling to help your application recover from such errors.
Other Common DynamoDB Errors (with Solutions)
- dynamodb-admin is not recognized as an internal or external command
- amazon dynamodb query parentparams is not defined
- dynamodb query key condition not supported
- DynamoDB Error Message KeyError item is not JSON serializable
- KMS Key Access Denied Error DynamoDB
- ImportError: No module named boto3 (DynamoDB)
- ConfigError: Missing region in config
- dynamodb can not resolve withkeyconditionexpression
- dynamodb converter not found for enhancedtype
- dynamodb put item not working
- Conditional Update Error DynamoDB
- DynamoDB Scan Not Working
- Unable to start DynamoDB Local process
- dynamodb localhost error
- dynamodb cannot convert undefined or null to object
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