# Trigger Step Function from EventBridge Scheduler

This pattern will initiate Step Function execution every 5 minutes using EventBridge Scheduler. Implemented with CDK/Python.

Learn more about this pattern at Serverless Land Patterns: https://serverlessland.com/patterns/eventbridge-schedule-to-step-function-cdk-python

Important: this application uses various AWS services and there are costs associated with these services after the Free Tier usage - please see the [AWS Pricing page](https://aws.amazon.com/pricing/) for details. You are responsible for any AWS costs incurred. No warranty is implied in this example.

## Requirements

- [Create an AWS account](https://portal.aws.amazon.com/gp/aws/developer/registration/index.html) if you do not already have one and log in. The IAM user that you use must have sufficient permissions to make necessary AWS service calls and manage AWS resources.
- [AWS CLI](https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html) installed and configured
- [Git Installed](https://git-scm.com/book/en/v2/Getting-Started-Installing-Git)
- [AWS CDK](https://docs.aws.amazon.com/cdk/latest/guide/cli.html) installed and configured

## Deployment Instructions

1. Create a new directory, navigate to that directory in a terminal and clone the GitHub repository:
   ```bash
   git clone https://github.com/aws-samples/serverless-patterns
   ```
2. Change directory to the pattern directory:
   ```bash
   cd serverless-patterns/eventbridge-schedule-to-step-function-cdk-python/
   ```
3. To manually create a virtualenv on MacOS and Linux:
    ```bash
    $ python3 -m venv .venv
    ```
4. After the init process completes and the virtualenv is created, you can use the following
step to activate your virtualenv.
    ```bash
    $ source .venv/bin/activate
    ```
5. If you are a Windows platform, you would activate the virtualenv like this:
    ```bash
    % .venv\Scripts\activate.bat
    ```
6. Once the virtualenv is activated, you can install the required dependencies.
    ```bash
    $ pip install -r requirements.txt
    ```
7. To deploy the application:
    ```bash
    $ cdk deploy
    ```

## How it works

The template will create an EventBridge schedule and a Step Function. Every 5 minutes, EventBridge schedule will trigger a Step Function execution.

## Delete stack

```bash
cdk destroy
```

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