What Data Looks Like for This Category
Financial report data for the air pollution control category comes primarily from publicly disclosed periodic reports of related enterprises, operating briefings released by industry associations, and project winning bid announcements. Data updates follow quarterly and annual core cycles. Some temporary project progress data is updated irregularly alongside enterprise operating announcements. A single financial report document includes fields such as revenue composition, project contract amount, pollutant treatment equipment capacity, and operation and maintenance service unit price. Revenue-related fields use RMB yuan as their unit. Fields related to treatment equipment use units such as cubic meters per hour, tons per year, or sets. Contract amount fields use RMB ten thousand yuan as their unit.
What Constraints Do These Characteristics Impose on HTTP Interfaces and External Systems
Multi-source data sources for air pollution control financial reports require HTTP interfaces to support multi-data source authentication configuration, and adapt to API calling rules of different platforms. Data sources with varying update rhythms require interfaces to support both scheduled pull and manual trigger pull modes. This matches the update needs of quarterly periodic disclosures and temporary announcements. The diversity of fields and units requires interfaces to support custom field mapping and unit conversion logic. This prevents cross-system data format incompatibilities. Some unstructured winning bid announcement documents require interfaces to support parameter configuration for parsing multiple formats such as PDF and Word. This ensures effective extraction of unstructured data in financial reports.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Air pollution control financial report documents usually contain multi-page structured and unstructured content. A longer timeout duration ensures complete data extraction |
CRON_EXPRESSION | 0 0 2 /3 | Matches the disclosure cycle of quarterly financial reports of listed companies, and pulls the latest financial report data on a scheduled basis |
API_KEY | Assign independent keys for each data source, store in system environment variables | Differentiate calling permissions for different data sources, prevent a single key leak from affecting full-link data docking |
FIELD_MAPPING_RULE | Custom mapping rules, configure unit conversion logic for fields such as pollutant treatment volume and revenue | Adapt to the diversity of fields and units in air pollution control financial reports, unify cross-system data formats |
MAX_RETRY_TIMES | 3 times | Address temporary fluctuations of external data source interfaces, ensure the stability of data pulling |
ALLOWED_PARSE_TYPES | PDF, DOCX, TXT | Cover common disclosure document formats for air pollution control financial reports, support parsing of multiple data types |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Phenomenon: The HTTP interface call returns a 404 error, and the log shows
POST /api/admin/initv4818 404. Cause: The version upgrade script was not executed correctly, or the service was not restarted after upgrade, resulting in an unupdated interface path. - Phenomenon: The HTTPS interface cannot be called normally after configuration, and the nginx reverse proxy configuration does not take effect. Cause: The SSL certificate binding and request forwarding rules of nginx were not configured correctly, and the HTTP header forwarding configuration was ignored.
- Phenomenon: The knowledge base interface returns results without session context data. Cause: The session protocol configuration was not enabled, or the correct session identification parameter was not carried in the interface request.
How to Verify Successful Configuration
- Call the configured HTTP interface, pass a test financial report data source link, and verify that the returned data fields match the preset mapping rules.
- View the system scheduled task log to confirm that the data pulling task runs automatically according to the configured cycle.
- Call the interface using different data source keys, and confirm that only authorized keys can successfully obtain corresponding data.
- Upload a PDF document of an air pollution control financial report to the system, and check whether the analysis result covers core fields such as revenue and project contracts.
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.