How to use Boto3 to get the details of a database from AWS Glue Data Catalog?
Problem Statement − Use boto3 library in Python to retrieve the definition of a database.
Example − Retrieve the definition of a database ‘QA-test’.
Approach/Algorithm to solve this problem
Step 1 − Import boto3 and botocore exceptions to handle exceptions.
Step 2 − database_name is the mandatory parameter. It fetches definition of given database.
Step 3 − Create an AWS session using boto3 library. Make sure region_name is mentioned in default profile. If it is not mentioned, then explicitly pass the region_name while creating the session.
Step 4 − Create an AWS client for glue.
Step 5 − Now use get_database function and pass the database_name as Name parameter.
Step 6 − It returns the definition of a given database.
Step 7 − Handle the generic exception if something went wrong while checking the job.
Example
Use the following code to retrieve the definition of a database −
import boto3
from botocore.exceptions import ClientError
def retrieves_database_details(database_name)
session = boto3.session.Session()
glue_client = session.client('glue')
try:
response = glue_client.get_database(Name = database_name)
return response
except ClientError as e:
raise Exception("boto3 client error in retrieves_database_details: " + e.__str__())
except Exception as e:
raise Exception("Unexpected error in retrieves_database_details: " + e.__str__())
print(retrieves_database_details('QA-test'))
Published on 23-Mar-2021 06:33:31
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