LianjiaTech/bella-openapi
Sep 2025 – Jan 2026
5 Months active
Languages Used
JavaJavaScriptTypeScript
Technical Skills
API DevelopmentAPI IntegrationBackend DevelopmentCode FormattingCode OrganizationData Conversion
liudazhuang002
PROFILE
Liudazhuang002
Liu Dazhuang contributed to the LianjiaTech/bella-openapi repository by designing and enhancing OCR workflows for automated document processing over five months. He implemented end-to-end ID card and bank card OCR with Baidu and KE channel integrations, introducing modular adapters, robust error handling, and configuration-driven routing. Liu refactored the OCR pipeline for maintainability, extracting reusable logic and standardizing API usage across Java and Spring Boot components. He improved reliability by fixing image retrieval bugs and streamlining input validation. His work enabled scalable onboarding of new document types, accelerated KYC workflows, and ensured traceable, maintainable backend services using Java, React, and TypeScript.
Overall Statistics
Feature vs Bugs
89%Features
Repository Contributions
33Total
Bugs
1
Commits
33
Features
8
Lines of code
6,802
Activity Months5
Your Network
84 people
Work History
January 2026
4 Commits • 2 Features
Jan 1, 2026January 2026 monthly performance summary for LianjiaTech/bella-openapi focusing on KE channel OCR enhancements. Delivered two feature sets: Ke Channel OCR Framework and Adapter Enhancements, and Ke Channel OCR for ID Card and Bank Card Recognition. Refactored OcrController and introduced OcrContext to simplify initialization; implemented a general OCR adapter and KE channel integration with robust error handling and word extraction. Implemented OCR for ID cards and bank cards via KE channel, including request/response handling and data extraction for ID fields, card number, bank name, and validity. This work improves reliability, maintainability, and scalability of OCR workflows and accelerates automated document processing for ID and bank cards. Commit traceability includes: 6f228aaf2d2af5575774a6271fde0693b580a59c, 8125d64fd15a9dba5f936c4d071514bd31118e7c, 3645d62c18cc6762262be2070b7f741f5b09ccd3, 892c08ff35a112dbe2a6968ccef5915fa69a975a.
4 Commits • 2 Features
Jan 1, 2026January 2026 monthly performance summary for LianjiaTech/bella-openapi focusing on KE channel OCR enhancements. Delivered two feature sets: Ke Channel OCR Framework and Adapter Enhancements, and Ke Channel OCR for ID Card and Bank Card Recognition. Refactored OcrController and introduced OcrContext to simplify initialization; implemented a general OCR adapter and KE channel integration with robust error handling and word extraction. Implemented OCR for ID cards and bank cards via KE channel, including request/response handling and data extraction for ID fields, card number, bank name, and validity. This work improves reliability, maintainability, and scalability of OCR workflows and accelerates automated document processing for ID and bank cards. Commit traceability includes: 6f228aaf2d2af5575774a6271fde0693b580a59c, 8125d64fd15a9dba5f936c4d071514bd31118e7c, 3645d62c18cc6762262be2070b7f741f5b09ccd3, 892c08ff35a112dbe2a6968ccef5915fa69a975a.
January 2026
December 2025
6 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for LianjiaTech/bella-openapi focusing on delivering measurable business value through OCR module improvements and a critical bug fix in image retrieval. The work emphasizes code quality, maintainability, and reliability to support faster onboarding and lower future risk. Key features/bug work completed: - OCR Module Refactoring and Standardization: consolidated OCR refactors to improve readability, generalized API usage, input validation, and long-term maintainability. Commits included 055ab8f38c6ba272fc94efcc23d65bc4890d80f1; 316a9119efb7395f20d61ed85a1e1ac4a1111bfc; f2b4e3c79182cb5372ac3f4c7db1f98aa0770ea3; 1f6347d599fb1ab610a4d1cccbc291526fd43af9; eaf314b47436963dbef1c4493092a67759a36fbe. - Shared OCR logic extracted into reusable segments across Controller, BaiduAdaptor, and YidaoAdaptor: refactor commits include f2b4e3c79182cb5372ac3f4c7db1f98aa0770ea3; 1f6347d599fb1ab610a4d1cccbc291526fd43af9; eaf314b47436963dbef1c4493092a67759a36fbe. - Image Retrieval from File IDs Bug Fix: corrected the retrieval method in ImageRetrievalService to ensure accurate image retrieval by file IDs. Commit: 2294a39b5cc2ec6d5daf46417ee1d20ee80986b6. Overall impact and accomplishments: - Improved code quality, readability, and maintainability of the OCR pipeline, reducing future maintenance effort and enabling faster feature iterations. - Increased reliability of image content retrieval, reducing risk of downstream failures when accessing files by ID. - Strengthened reproducibility and traceability through explicit commit references, supporting smoother onboarding and audits. Technologies/skills demonstrated: - Modular refactoring, abstraction, and API standardization - Cross-component code reuse (Controller and multiple Adaptors) - Robust input validation and error handling in OCR flow - Git-based traceability and incremental delivery
December 2025
6 Commits • 1 Features
Dec 1, 2025December 2025 monthly summary for LianjiaTech/bella-openapi focusing on delivering measurable business value through OCR module improvements and a critical bug fix in image retrieval. The work emphasizes code quality, maintainability, and reliability to support faster onboarding and lower future risk. Key features/bug work completed: - OCR Module Refactoring and Standardization: consolidated OCR refactors to improve readability, generalized API usage, input validation, and long-term maintainability. Commits included 055ab8f38c6ba272fc94efcc23d65bc4890d80f1; 316a9119efb7395f20d61ed85a1e1ac4a1111bfc; f2b4e3c79182cb5372ac3f4c7db1f98aa0770ea3; 1f6347d599fb1ab610a4d1cccbc291526fd43af9; eaf314b47436963dbef1c4493092a67759a36fbe. - Shared OCR logic extracted into reusable segments across Controller, BaiduAdaptor, and YidaoAdaptor: refactor commits include f2b4e3c79182cb5372ac3f4c7db1f98aa0770ea3; 1f6347d599fb1ab610a4d1cccbc291526fd43af9; eaf314b47436963dbef1c4493092a67759a36fbe. - Image Retrieval from File IDs Bug Fix: corrected the retrieval method in ImageRetrievalService to ensure accurate image retrieval by file IDs. Commit: 2294a39b5cc2ec6d5daf46417ee1d20ee80986b6. Overall impact and accomplishments: - Improved code quality, readability, and maintainability of the OCR pipeline, reducing future maintenance effort and enabling faster feature iterations. - Increased reliability of image content retrieval, reducing risk of downstream failures when accessing files by ID. - Strengthened reproducibility and traceability through explicit commit references, supporting smoother onboarding and audits. Technologies/skills demonstrated: - Modular refactoring, abstraction, and API standardization - Cross-component code reuse (Controller and multiple Adaptors) - Robust input validation and error handling in OCR flow - Git-based traceability and incremental delivery
November 2025
5 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for LianjiaTech/bella-openapi: Delivered two core features that advance document processing workflows and improve OCR accuracy and flexibility. 1) Yidao Channel Temporary ID Card Processing: added a dedicated endpoint with full request/response handling to process temporary ID cards through the Yidao channel. 2) OCR System Enhancements with Baidu Integration: expanded to frontend image-based OCR, Baidu OCR integration, multi-document support, and flexible OCR host configuration with price parsing improvements, including a host rename from api_host to ocr_host. These changes collectively accelerate identity-related workflows, improve data extraction quality, and reduce manual intervention. No explicit critical bugs reported; stability improvements included across OCR and integration layers.
5 Commits • 2 Features
Nov 1, 2025November 2025 monthly summary for LianjiaTech/bella-openapi: Delivered two core features that advance document processing workflows and improve OCR accuracy and flexibility. 1) Yidao Channel Temporary ID Card Processing: added a dedicated endpoint with full request/response handling to process temporary ID cards through the Yidao channel. 2) OCR System Enhancements with Baidu Integration: expanded to frontend image-based OCR, Baidu OCR integration, multi-document support, and flexible OCR host configuration with price parsing improvements, including a host rename from api_host to ocr_host. These changes collectively accelerate identity-related workflows, improve data extraction quality, and reduce manual intervention. No explicit critical bugs reported; stability improvements included across OCR and integration layers.
November 2025
October 2025
2 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on the LianjiaTech/bella-openapi project. Delivered a Temporary ID Card OCR Framework with modular protocols and handlers to support OCR for temporary IDs, added request/response objects for temporary ID cards, and log handlers for OCR across bank cards and ID cards. Refactored and abstracted the base OCR log handler to enable future extensions. Cleaned up the codebase by removing empty OCR request classes for bank cards, ID cards, and temporary IDs to simplify maintenance. These changes improve automation capability, data extraction reliability, and maintainability, enabling faster onboarding of new document OCR types and better overall reliability for API consumers.
October 2025
2 Commits • 1 Features
Oct 1, 2025Monthly summary for 2025-10 focusing on the LianjiaTech/bella-openapi project. Delivered a Temporary ID Card OCR Framework with modular protocols and handlers to support OCR for temporary IDs, added request/response objects for temporary ID cards, and log handlers for OCR across bank cards and ID cards. Refactored and abstracted the base OCR log handler to enable future extensions. Cleaned up the codebase by removing empty OCR request classes for bank cards, ID cards, and temporary IDs to simplify maintenance. These changes improve automation capability, data extraction reliability, and maintainability, enabling faster onboarding of new document OCR types and better overall reliability for API consumers.
September 2025
16 Commits • 2 Features
Sep 1, 2025September 2025 performance summary for LianjiaTech/bella-openapi focused on expanding OCR capabilities and improving reliability for KYC workflows. Delivered end-to-end ID Card OCR with Baidu integration and added Bank Card OCR support, enabling automated identity verification with high accuracy and observability. Implemented a lightweight Baidu adaptor, stateless image processing utilities, and configuration-driven routing to improve maintainability and scalability.
16 Commits • 2 Features
Sep 1, 2025September 2025 performance summary for LianjiaTech/bella-openapi focused on expanding OCR capabilities and improving reliability for KYC workflows. Delivered end-to-end ID Card OCR with Baidu integration and added Bank Card OCR support, enabling automated identity verification with high accuracy and observability. Implemented a lightweight Baidu adaptor, stateless image processing utilities, and configuration-driven routing to improve maintainability and scalability.
September 2025
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Quality Metrics
Correctness87.2%
Maintainability86.8%
Architecture85.8%
Performance80.6%
AI Usage24.2%
Skills & Technologies
Programming Languages
JavaJavaScriptTypeScript
Technical Skills
API DevelopmentAPI IntegrationAPI developmentAPI integrationBackend DevelopmentCode CleanupCode FormattingCode OrganizationData ConversionError HandlingJavaJava DevelopmentOCROCR ProcessingOCR integration
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