The Need for a Call to Cancel Certain Deliveries

Oct 13, 2025 by pynkocean.com 73 views

Problem Statement

In the current state of Tapd, there is a continuous attempt to deliver a proof even if the peer no longer exists. This can lead to unnecessary resource utilization and potential errors. The log snippet below illustrates the issue:

2025-03-11 15:48:23.479 [DBG] PROF: Proof delivery failed with error. Backing off. (transfer_type=receive, locator_hash=92dcea55b0217a74d5a40f96e64e1441b41858faaa99cd0e5fb28f5520ff4e71, backoff=5m0s, attempt=218): error executing backoff procedure: backoff exec error: error retrieving proof from universe courier service: rpc error: code = Unavailable desc = connection error: desc = "transport: authentication handshake failed: remote error: tls: no application protocol"

The Need for a Call to Cancel Certain Deliveries

The current behavior of Tapd can be frustrating for users who need to cancel certain proof deliveries. The lack of a call to cancel these deliveries can lead to wasted resources and potential errors. To address this issue, we propose the implementation of a call that allows users to cancel certain deliveries.

Benefits of Implementing a Call to Cancel Certain Deliveries

Implementing a call to cancel certain deliveries will provide several benefits to users and the system as a whole. Some of the benefits include:

Improved Resource Utilization: By allowing users to cancel certain deliveries, we can reduce the unnecessary resource utilization that occurs when a peer no longer exists.
Reduced Errors: Canceling certain deliveries can help reduce the number of errors that occur due to failed proof deliveries.
Enhanced User Experience: Providing users with the ability to cancel certain deliveries will enhance their overall experience with Tapd.

Solution Overview

To address the issue of continuous proof delivery attempts, we propose the implementation of a call that allows users to cancel certain deliveries. This call will be used to cancel proof deliveries that are no longer needed or have failed.

Call to Cancel Certain Deliveries

The call to cancel certain deliveries will be implemented as a new API endpoint. This endpoint will take the following parameters:

Locator Hash: The locator hash of the proof delivery to be canceled.
Transfer Type: The type of transfer (receive or send) for the proof delivery to be canceled.

Implementation Details

The implementation of the call to cancel certain deliveries will involve the following steps:

Create a new API endpoint: Create a new API endpoint that takes the locator hash and transfer type as parameters.
Validate the parameters: Validate the locator hash and transfer type to ensure they are valid.
Cancel the proof delivery: Cancel the proof delivery using the provided locator hash and transfer type.
Return a success response: Return a success response to the user indicating that the proof delivery has been canceled.

Example Use Case

Here is an example use case for the call to cancel certain deliveries:

User: A user has initiated a proof delivery to a peer, but the peer no longer exists.
Action: The user wants to cancel the proof delivery to avoid wasting resources.
Call: The user calls the new API endpoint with the locator hash and transfer type as parameters.
Response: The system cancels the proof delivery and returns a success response to the user.

Conclusion

Frequently Asked Questions

In this article, we will address some of the frequently asked questions related to the call to cancel certain proof deliveries.

Q: What is the purpose of the call to cancel certain proof deliveries?

A: The purpose of the call to cancel certain proof deliveries is to provide users with the ability to cancel proof deliveries that are no longer needed or have failed. This will help improve resource utilization, reduce errors, and enhance the overall user experience.

Q: How will the call to cancel certain proof deliveries work?

A: The call to cancel certain proof deliveries will be implemented as a new API endpoint. This endpoint will take the locator hash and transfer type as parameters. The system will then validate the parameters and cancel the proof delivery accordingly.

Q: What are the benefits of implementing the call to cancel certain proof deliveries?

A: The benefits of implementing the call to cancel certain proof deliveries include:

Improved Resource Utilization: By allowing users to cancel certain deliveries, we can reduce the unnecessary resource utilization that occurs when a peer no longer exists.
Reduced Errors: Canceling certain deliveries can help reduce the number of errors that occur due to failed proof deliveries.
Enhanced User Experience: Providing users with the ability to cancel certain deliveries will enhance their overall experience with Tapd.

Q: How will the call to cancel certain proof deliveries be secured?

A: The call to cancel certain proof deliveries will be secured using authentication and authorization mechanisms. Only authorized users will be able to call the API endpoint and cancel proof deliveries.

Q: What happens if the proof delivery is already in progress?

A: If the proof delivery is already in progress, the system will cancel the delivery and return an error response to the user. The user will then need to restart the proof delivery process.

Q: Can the call to cancel certain proof deliveries be used to cancel multiple deliveries at once?

A: Yes, the call to cancel certain proof deliveries can be used to cancel multiple deliveries at once. The API endpoint will accept a list of locator hashes and transfer types as parameters, and the system will cancel all the corresponding proof deliveries.

Q: How will the call to cancel certain proof deliveries be monitored and logged?

A: The call to cancel certain proof deliveries will be monitored and logged using the existing logging and monitoring mechanisms. This will allow us to track the usage of the API endpoint and identify any issues that may arise.

Q: What is the expected timeline for implementing the call to cancel certain proof deliveries?

A: The expected timeline for implementing the call to cancel certain proof deliveries is [insert timeline]. We will provide regular updates on the progress of the implementation.

Conclusion

In conclusion, the call to cancel certain proof deliveries is an important feature that will provide users with the ability to cancel proof deliveries that are no longer needed or have failed. We have addressed some of the frequently asked questions related to this feature and provided information on how it will work, its benefits, and its security. We will continue to provide updates on the progress of the implementation.