Freight Delay Notification

This project demonstrates a freight delay notification system using Temporal.

Running locally

• temporal server start-dev to start Temporal Server.
• npm install to install dependencies.
• Copy .env.example to .env and set the required variables.
• npm run start.watch to start the Worker.
• In another shell, npm run workflow to run the Workflow Client.

Running tests

• npm run test

Workflow

The following diagram illustrates the workflow for freight delay notifications:

sequenceDiagram
    participant Client
    participant Workflow
    participant GetDelayActivity
    participant GetMessageActivity
    participant SendEmailActivity

    Client->>Workflow: Start FreightDelayWorkflow
    Workflow->>GetDelayActivity: Call getDelay()
    GetDelayActivity-->>Workflow: Returns delay information
    Workflow->>GetMessageActivity: Call getMessage(delayInfo)
    GetMessageActivity-->>Workflow: Returns notification message
    Workflow->>SendEmailActivity: Call sendEmail(message)
    SendEmailActivity-->>Workflow: Email sent confirmation
    Workflow-->>Client: Workflow completed

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Failures from Open AI API is handled gracefully.

License

This project is licensed under the MIT License.