Error: dynamodb query is null
What's Causing This Error
This error message indicates that the query operation has failed because the TableName
property is not set or specified correctly. The TableName
property is used to specify the table's name from which the item(s) are to be retrieved. If the property is not set or is specified incorrectly, DynamoDB will not know which table to query, hence the error.
Solution: Here's How To Resolve It
To solve this error, provide a valid TableName
property. The TableName should be the name of an existing table in your DynamoDB account.
Here is an example of how to perform a query operation with a valid TableName
:
import boto3 # Instantiate a client dynamodb = boto3.client('dynamodb', region_name='us-west-2') # Define the parameters table_name = "my_table" key_condition_expression = "Id = :value" expression_attribute_values = { ":value": {"N": "1"} } # Perform the operation response = dynamodb.query( TableName=table_name, KeyConditionExpression=key_condition_expression, ExpressionAttributeValues=expression_attribute_value ) print(response)
It is also essential to check that the table name is spelt correctly and that the table exists in your DynamoDB account; otherwise, the query will fail. Finally, it's also essential to check that the IAM user or role used to call the function has the necessary permissions to perform the query on the table.
Other Common DynamoDB Errors (with Solutions)
- 'dynamodb' object has no attribute 'table'
- boto3 dynamodb unable to locate credentials
- DynamoDB is missing the key id in the item
- dynamodb cannot read property 'push' of undefined
- DynamoDB Mapper Could Not Instantiate Class
- DynamoDB Is Not Null
- failed to list tables not authorized dynamodb
- DynamoDB FilterExpression Not Working
- dynamodb cannot read property '0' of undefined
- DynamoDB Local Cannot Create Preexisting Table
- Unable to start DynamoDB Local process
- could not connect to the endpoint URL dynamodb
- could not transform a dynamodb amazonserviceexception to a compatible kinesis exception
- DynamoDB Local Missing Authentication Token
- dynamodb local could not load credentials from any providers