Source
yaml
id: business-processes
namespace: tutorial
labels:
name: Business Processes
inputs:
- id: request.name
type: STRING
defaults: Rick Astley
- id: request.start_date
type: DATE
defaults: 2024-07-01
- id: request.end_date
type: DATE
defaults: 2024-07-07
- id: slack_webhook_uri
type: URI
defaults: https://kestra.io/api/mock
tasks:
- id: send_approval_request
type: io.kestra.plugin.notifications.slack.SlackIncomingWebhook
description: Send a Slack message requesting approval for the vacation.
url: "{{ inputs.slack_webhook_uri }}"
payload: |
{
"channel": "#vacation",
"text": "Validate holiday request for {{ inputs.request.name }}. To approve the request, click on the `Resume` button here http://localhost:8080/ui/executions/{{flow.namespace}}/{{flow.id}}/{{execution.id}}"
}
- id: wait_for_approval
type: io.kestra.plugin.core.flow.Pause
description: Pause the flow while waiting for manual approval.
pauseDuration: PT30S
- id: process_request
type: io.kestra.plugin.core.http.Request
description: Submit the approved vacation request to the API.
uri: https://kestra.io/api/mock
method: POST
contentType: application/json
body: "{{ inputs.request }}"
description: |
# Flow Description
**Use case:** Vacation approval workflow that mixes human validation with automated follow-up.
**Highlights:**
- Collect request details (name and dates) via generated form inputs.
- Notify approvers in Slack with a link to resume the execution.
- Pause the flow until a user clicks `Resume` in the Kestra UI.
- Submit the approved vacation request to the API once approval is granted.
About this blueprint
Getting Started Notifications API Kestra
This flow is a simple example of a business process automation use case for vacation approval.
The user first submits a vacation request using a form automatically created
in the Kestra UI thanks to inputs. The flow then sends a Slack message to
request approval for a vacation, waits for the approval, and then processes
the request. The approval is as simple as clicking on the Resume button in
the Kestra UI.
The flow has three tasks:
- The first task sends a Slack message to request approval for a vacation.
- The second task pauses the execution to wait for the approval.
- Once the execution is resumed, the third task processes the vacation request.
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