How to list out Event bridge schedules programatically - boto3

Use the following Python script to list all EventBridge schedules. This script initializes a Boto3 client for EventBridge Scheduler and uses the list_schedules method to fetch the schedules.

import boto3

def list_eventbridge_schedules(region_name):
    # Initialize the boto3 client for EventBridge Scheduler
    client = boto3.client('scheduler', region_name=region_name)
    
    # List all schedules
    schedules = []
    response = client.list_schedules()
    schedules.extend(response['Schedules'])
    
    # Handle pagination if there are more schedules
    while 'NextToken' in response:
        response = client.list_schedules(NextToken=response['NextToken'])
        schedules.extend(response['Schedules'])
    
    return schedules

if __name__ == "__main__":
    region = "us-east-1"  # Replace with your AWS region
    schedules = list_eventbridge_schedules(region)
    
    # Print out the schedules
    for schedule in schedules:
        print(schedule)

Explanation

1. Initialize Boto3 Client:

client = boto3.client('scheduler', region_name=region_name): Initializes a Boto3 client for EventBridge Scheduler.

2. List Schedules:

client.list_schedules(): Retrieves a list of schedules. If there are more schedules than can be returned in a single response, the NextToken key is used for pagination.

The script handles pagination by checking for the NextToken key and making additional requests to retrieve all schedules.

3. Print Schedules:

The script iterates over the retrieved schedules and prints each one.

Additional Considerations

• Filtering Schedules: If you need to filter schedules based on specific criteria (e.g., by name or state), you can add additional logic to the script to handle this.
• Modifying Step Functions: Once you have the list of schedules, you can add logic to modify the associated Step Functions as required.