Data Sources and Structure for This Category
Intelligent due diligence report data for consumer building materials comes primarily from brand manufacturer SKU ledgers, housing and urban-rural development department building material filing databases, engineering bidding winning announcements, and project site acceptance records.
Update frequencies vary by data type: SKU basic information syncs daily, winning announcement data is crawled in real time, and site acceptance records are updated alongside project progress.
Document fields include project entities, building material subcategories, brand authorization qualifications, specifications and models, price ranges, supplier filing numbers, and more. Common engineering measurement units such as meters, square meters, kilograms, and sets are used. Some cross-regional projects add local filing numbers as an extra field.
Constraints for HTTP Interfaces and External Systems
Consumer building material data is scattered across multiple independent platforms including manufacturers, housing authorities, and bidding platforms. HTTP interface integration is required to access multi-source data, so multiple sets of interface authentication parameters must be configured.
Differences in update rhythms across data sources require differentiated polling intervals. Basic SKU data can use hourly polling. Winning announcement data requires real-time or minute-level pulling.
Building material fields include regionalized fields such as local filing numbers. Custom field mapping rules must be configured to avoid mismatches between cross-source data fields.
Some site acceptance data is stored in PDF or image format. Parsing adaptation switches for these formats must be enabled.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | PDF or image parsing for building material site acceptance typically contains extensive text and tables. 600 seconds covers processing time for complex documents |
UPLOAD_FILE_MAX_SIZE | 1000 MB | Bulk building material filing files from some large-scale projects can reach gigabyte scale. Sufficient headroom prevents upload failures |
API_MODEL_SELECT | Match by data source | Versions v4.8.10 and above support specifying an adapted model for each connected interface, to accommodate return formats of different data sources |
KNOWLEDGE_PARSE_STATUS_POLL_INTERVAL | 30 seconds | Bulk building material parsing tasks typically include multiple documents. A 30-second polling interval enables timely updates on parsing status |
FIELD_MAPPING_RULES | Customize mappings by region | Building material filing fields vary across regions. External interface fields must be mapped to standardized due diligence report fields |
MULTI_SOURCE_AUTH_CONFIG | Configure independent secrets per source | Different data sources use different authentication methods (API keys, OAuth). Independent configuration prevents permission conflicts |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material format, data volume, and business rules. Each scenario requires individual analysis. It is recommended to test against your own samples before finalizing settings.
Three Common Configuration Mistakes
- Symptom: After calling the knowledge base creation interface, no status feedback for parsing in progress, ready, or failed is obtained. Cause: The status reporting configuration for
KNOWLEDGE_PARSE_STATUS_POLL_INTERVALis not enabled, or the polling interval is set too long. - Symptom: A timeout error is triggered when uploading building material acceptance files, and parsing results are incomplete. Cause: The value set for
PARSE_FILE_TIMEOUT_SECONDSis less than actual parsing time, failing to accommodate parsing requirements for large PDF documents. - Symptom: Imported building material data has empty fields or incorrect values. Cause:
FIELD_MAPPING_RULESis not configured. Raw fields from external interfaces are used directly, without adapting to standard due diligence report fields.
How to Verify Configurations Are Correct
- Call the multi-source data docking interface, use the configured authentication parameters to send a request, and verify that the returned results include correct fields such as building material categories and specifications and models.
- Upload a building material acceptance PDF containing multiple pages of tables, wait for parsing to complete, and verify that no timeout error is triggered and the parsing result fully covers the document content.
- Call the knowledge base creation interface, poll the parsing status every 30 seconds, and confirm that status feedback for parsing in progress, ready, or failed is received.
- View the field mapping log, and confirm that the local filing number from the external interface has been correctly mapped to the standard field of the due diligence report.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.