API Interface Module for Selective Idempotency Checking

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Solution Overview

Problem

Existing systems face challenges in ensuring idempotency and efficient communication between synchronous and asynchronous application programming interfaces (APIs), leading to computational inefficiencies, security vulnerabilities, and inaccuracies in processing protected data.

Innovation Solution

An interface module that determines whether a synchronous API has an idempotency check and performs a check only if necessary, allowing seamless communication between synchronous and asynchronous environments without redundant computations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an idempotency check is performed on every message sent to a synchronous API, then message duplication is prevented and data accuracy is improved, but computational overhead increases and processing efficiency deteriorates

Engineering Contradiction:

Improvemessage processing accuracyVSAvoidmessage processing efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary classification of messages into idempotent and non-idempotent categories before processing. By determining the idempotency nature of each message type in advance, the system can apply appropriate checking strategies selectively, avoiding unnecessary computational overhead while ensuring accuracy for messages that require it.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Different idempotency checking strategies are applied to different message types based on their specific characteristics. Idempotent messages (such as GET requests) undergo minimal or no checking, while non-idempotent messages (such as POST or PUT requests) undergo thorough idempotency verification. This localized approach optimizes the balance between reliability and efficiency.

Inventive Principle:

Principle #3Local quality

2Reliability

If comprehensive idempotency checks are implemented, then data security is improved and duplicate processing is prevented, but system complexity and computational overhead increase

Engineering Contradiction:

Improvedata securityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The idempotency checking mechanism is segmented into distinct components: message classification logic, idempotent message handling paths, and non-idempotent message verification paths. This segmentation allows the system to implement comprehensive security checks where needed while keeping the overall system architecture manageable and maintainable.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

An intermediary classification layer is introduced between message reception and processing. This intermediary determines whether a message requires full idempotency verification or can be processed with minimal checks, thereby reducing system complexity while maintaining security through targeted verification.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If synchronous APIs wait for response confirmation before proceeding, then message delivery reliability is improved, but processing speed and system responsiveness deteriorate

Engineering Contradiction:

Improvemessage delivery reliabilityVSAvoidprocessing speed

Core Design Contradiction:

ReliabilityVSSpeed

Solution Approach 1:

The system dynamically adjusts its communication strategy based on message characteristics. For idempotent messages, the system can proceed with asynchronous processing and fire-and-forget approaches, improving speed. For non-idempotent messages, synchronous confirmation is maintained to ensure reliability. This dynamic adaptation resolves the contradiction between speed and reliability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Instead of requiring full synchronous confirmation for all messages, the system applies partial action by sending messages asynchronously when idempotency is guaranteed. This partial relaxation of the confirmation requirement maintains reliability for critical operations while significantly improving processing speed for routine idempotent messages.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20260037239A1Facilitating secure and efficient communication between synchronous and asynchronous applications

Publication Date: 2026.02.05 BARCLAYS EXECUTION SERVICES LTD

AI summary

There is provided an interface module for facilitating communication with a synchronous application programming interface, the module being configured to: generate or receive a message to be sent to the synchronous API; and determine whether or not the synchronous API has an idempotency check; wherein upon determining that the synchronous API has an idempotency check, the module is further configured to: perform no idempotency check; and send the message to the synchronous API, and wherein upon determining that the synchronous API does not have an idempotency check, the module is further configured to: perform an idempotency check; and send the message to the synchronous API if the message passes the idempotency check or not send the message to the synchronous API if the message fails the idempotency check.