📋 Document Finder Backend API

A comprehensive REST API for searching and retrieving technical documents and specifications from 3GPP, ETSI and GlobalPlatform organizations.

🚀 Key Features

Document Retrieval: Get direct download URLs and metadata for specific documents
Batch Processing: Handle multiple document requests simultaneously
Advanced Search: Multiple search modes with keyword matching
BM25 Scoring: State-of-the-art relevance ranking using BM25 algorithm
Cross-Organization: Search across both 3GPP and ETSI document repositories

📚 Supported Document Types

3GPP Documents

TDocs (Technical Documents):
- Format: S1-123456, C4-234567, R2-345678
- Working group documents from SA, CT, RAN groups
Technical Specifications:
- Format: 23.401, 38.331-16
- Official published specifications

ETSI Documents

TDocs (Technical Documents):
- Format: SET(25)000001, SCPTEQ(19)000011
- Committee working documents
Technical Specifications:
- Format: 131 102, 188 008-2
- Published ETSI standards

GP Documents

Specifications
- Format: GPC_SPE_106, GP_REQ_004
- Published Global Platform specifications

🔍 Search Capabilities

Quick Search: Lightning-fast metadata-only search
Deep Search: Comprehensive content-based search within document sections
BM25 Search: Advanced relevance scoring with normalization
Flexible Filtering: By source organization, document type, and specification category

🛡️ Data Sources

This API indexes and searches through:

3GPP specification metadata and content (from the Datasets section)
ETSI specification metadata and content (from the Datasets section)
3GPP TDoc location mappings (from the Datasets section)
GP TDoc location mappings (from Python app.py)
Pre-built BM25 search indices (from the Models section)

🔧 Technical Stack

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