In this article, we will be showing you how to create a multilingual personal calendar assistant using Amazon Bedrock and AWS Step Functions. This assistant will be able to manage your calendar events, set reminders, and provide you with information about upcoming events.
Prerequisites
Before you start, you will need the following:
* An AWS account
* The AWS CLI
* Amazon Bedrock installed
* A text editor
* A calendar app
Step 1: Create an Amazon Bedrock project
First, you need to create an Amazon Bedrock project. Open your terminal and run the following command:
“`
bedrock init my-calendar-assistant
“`
This will create a new Bedrock project directory called `my-calendar-assistant`.
Step 2: Install the necessary dependencies
Next, you need to install the necessary dependencies for your project. Open the `package.json` file in your project directory and add the following dependencies:
“`
dependencies: {
aws-sdk: ^2.467.0,
bedrock-step-functions: ^1.0.0,
moment: ^2.29.3
}
“`
Then, run the following command to install the dependencies:
“`
npm install
“`
Step 3: Create a step function definition
Now, you need to create a step function definition. This definition will define the workflow of your personal calendar assistant. Open the `step-functions.json` file in your project directory and add the following definition:
“`
{
StartAt: GetEvent,
States: {
GetEvent: {
Type: Task,
Resource: arn:aws:states:::states:getEvents,
Parameters: {
CalendarName: My Calendar
},
Next: ExtractEventInfo
},
ExtractEventInfo: {
Type: Map,
ItemsPath: $.Events,
Next: GenerateResponse
},
GenerateResponse: {
Type: Pass,
ResultPath: $,
Next: ReturnResponse
},
ReturnResponse: {
Type: Return,
ResultPath: $.Events
}
}
}
“`
This definition defines a workflow that starts with the `GetEvent` state. This state uses the `states:getEvents` task to retrieve events from your calendar. The next state, `ExtractEventInfo`, uses a map task to extract information from each event. The `GenerateResponse` state then generates a response that contains the extracted event information. Finally, the `ReturnResponse` state returns the response to the caller.
Step 4: Create an Amazon Bedrock function
Next, you need to create an Amazon Bedrock function that will use the step function definition to manage your calendar events. Open the `my-calendar-assistant.js` file in your project directory and add the following code:
“`
/**
* This function is executed when a calendar event is added, modified, or deleted.
*
* @param {Object} event The CloudEvent containing the calendar event data.
* @param {Object} context The CloudEvent context.
*/
exports.handler = async (event, context) => {
try {
// Parse the event body as JSON.
const eventData = JSON.parse(event.body);
// Create a state machine execution request.
const executionRequest = {
stateMachineArn: process.env.STATE_MACHINE_ARN,
input: eventData
};
// Create a Step Functions client.
const stepFunctions = new AWS.StepFunctions();
// Start a state machine execution.
const execution = await stepFunctions.startExecution(executionRequest).promise();
// Log the execution ARN.
console.log(`Execution ARN: ${execution.executionArn}`);
// Return a 200 HTTP status code.
return {
statusCode: 200
};
} catch (err) {
// Log the error.
console.error(err);
// Return a 500 HTTP status code.
return {
statusCode: 500
};
}
};
“`
This code defines an exported handler function that is invoked when a calendar event is added, modified, or deleted. The handler function parses the event body as JSON, creates a state machine execution request, and starts a state machine execution. It then logs the execution ARN and returns a 200 HTTP status code.
Step 5: Deploy your Amazon Bedrock function
Now, you can deploy your Bedrock function to AWS. Open your terminal and run the following command:
“`
bedrock deploy
“`
This will deploy your function to a new AWS Lambda function.
Step 6: Set environment variables
Once your function is deployed, you need to set the following environment variables for your function:
* `STATE_MACHINE_ARN` – The ARN of the state machine that you created in Step 3.
* `LANGUAGE`- The language of the assistant
Step 7: Configure your calendar
Now, you need to configure your calendar to use your personal calendar assistant. Open your calendar app and add a new webhook subscription. Enter the URL of your deployed function and select the events that you want to subscribe to.
Step 8: Test your personal calendar assistant
Now, you can test your personal calendar assistant. Add a new event to your calendar and see if the assistant responds with the event information. You can also try modifying or deleting an event and see if the assistant updates or removes the event information.
Conclusion
In this article, we have shown you how to create a multilingual personal calendar assistant using Amazon Bedrock and AWS Step Functions. This assistant can manage your calendar events, set reminders, and provide you with information about upcoming events. We encourage you to experiment with the assistant and customize it to fit your own needs.
Kind regards J.O. Schneppat.
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