Module: staking-queue-client

Description

The staking-queue-client is a client module designed to interact with a staking queue system. It provides mechanisms to submit, process, and manage staking requests efficiently.

This module is responsible for

• managing staking-queue messages

• handling retries and message processing

• ensuring reliable communication between the staking client and the queue

Here are its key functionalities:

• Handling of QueueMessage — processes staking requests in a structured format

• Retry mechanism — implements a retry mechanism to reattempt failed staking transactions

• Message processing — ensures messages are handled correctly and within predefined constraints

Invariants

• Messages should maintain a consistent structure and contain valid staking parameters.

• A message should not exceed the maximum number of retry attempts.

• Messages should be processed in the correct order without duplication.

Test coverage

Cases covered

• Retry handling of QueueMessage — ensuring that the retry-attempt count increments correctly and validating that the retry attempt count is retrievable

Cases not covered

• Failure recovery — No explicit tests exist for message failures due to network or system issues. Tests should be added to ensure messages can be recovered after failures.

Attack surface

The system currently does not enforce a strict limit on retry attempts. Attackers could flood the system with messages that continuously retry. A maximum retry limit should be implemented to mitigate this risk. Additionally, logging and monitoring should be set up to detect and prevent excessive retry attempts.