feat: implement coinbase webhook generation

[monilpat]

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Relates to:

Implementation of a Coinbase Webhook Plugin for Eliza.

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Risks:

• Low Risk:
  • Potential misconfiguration of the webhook URL.
  • Possible delays in receiving real-time events due to network or service interruptions.
• Mitigation: Thorough testing using services like [Webhook.site](https://webhook.site) and error-handling mechanisms.

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Background:

What does this PR do?

This PR introduces a plugin enabling Eliza to manage Coinbase webhooks. It allows real-time updates and actions based on cryptocurrency transactions, enhancing the system's dynamic capabilities.

What kind of change is this?

• Feature: Adds new functionality to create, manage, and retrieve Coinbase webhooks for cryptocurrency events.
• Improvement: Provides support for seamless integration with the Coinbase SDK.

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Documentation changes needed?

• Yes:
  • Update the project documentation to include instructions on configuring and testing the Coinbase Webhook Plugin.
  • Add a section detailing supported event types and example webhook payloads.

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Testing:

Where should a reviewer start?

1. Review the CREATE_WEBHOOK and webhookProvider functionality for accurate event handling and API interactions.
2. Verify the implementation of error-handling and security measures (e.g., webhook secret validation).

Detailed testing steps:

1. Testing Webhook Creation:

   • Use a public testing service like [Webhook.site](https://webhook.site) to create a webhook URL.
   • Replace the notificationUri field in the example code with the generated URL.
   • Run the CREATE_WEBHOOK action and validate the response.

2. Testing Webhook Listing:

   • Trigger the webhookProvider action to fetch and log existing webhooks.
   • Cross-check the response data with Coinbase's CDP portal to ensure consistency.

3. Error Scenarios:

   • Test webhook creation with invalid inputs (e.g., invalid network ID or event type) and confirm appropriate error responses.

4. Security Validation:

   • Verify the webhook secret is securely stored and not exposed in logs or public code.

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Deploy Notes:

• Deploy as part of the Eliza core runtime update.
• Ensure the necessary environment variables (e.g., API keys, webhook secret) are set in production.
• Include retry logic in case of intermittent service failures during webhook registration.

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Database Changes:

• None: This plugin does not introduce database dependencies.

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Deployment Instructions:

1. Set up the Coinbase API key file in a secure environment.
2. Configure runtime.character.settings.secrets with the webhook secret.
3. Verify the webhook functionality using test and production environments.

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Discord Username:

0x8664