HTTP Interfaces and External Systems for Energy and Metals

What Data for This Category Looks Like

Energy and metals financial report data is primarily sourced from annual and quarterly reports of listed companies publicly disclosed by domestic and overseas stock exchanges, as well as monthly monitoring reports from industry associations. Update schedules follow three timelines:

Quarterly reports: updated 15 to 30 days after the end of each quarter
Annual reports: updated by April 30 of the following year
Temporary announcements: updated within 72 hours after a major event occurs

The structure of a single financial report document includes fields such as core operating data, capacity utilization rate, raw material procurement costs, product selling prices, and cash flow breakdowns. Most units use industrial measurement standards including tons, yuan per ton, and ten thousand yuan. Some cross-border disclosed financial reports include exchange rate conversion annotations.

Constraints on HTTP Interfaces and External Systems

The multi-source nature of energy and metals financial report data requires HTTP interface integrations to adapt to authentication rules of different data sources. Some overseas stock exchange interfaces require API key and IP whitelist configuration. Batch pulling of quarterly and annual reports generates significant traffic, so request rate limits must be configured to avoid triggering third-party data source rate restrictions. Temporary announcements have stricter real-time requirements, so short-cycle polling or Webhook push mechanisms must be implemented. Compatibility with multiple units requires adding unit conversion logic during interface parsing to prevent measurement deviations across data sources. Additionally, energy and metals financial reports often include specialized data for sub-categories, so interfaces must support category-based filtering parameters to improve the accuracy of data recall.

Configuration Settings

Configuration Item	Recommended Value	Rationale
`API_REQUEST_RATE_LIMIT`	`10–15 requests per minute`	Adapts to traffic requirements for batch pulling of financial reports from multiple data sources, avoiding triggering third-party interface rate limits
`PARSE_FILE_TIMEOUT_SECONDS`	`600 seconds`	Energy and metals financial reports contain complex industrial data tables, with longer parsing time than general documents
`UPLOAD_FILE_MAX_SIZE`	`500 MB`	Maximum allowed upload size for a single annual structured financial report
`FIELD_UNIT_CONVERSION`	`Enabled`	Adapts to unit differences across data sources, automatically completing conversions between tons and kilograms, and between yuan and ten thousand yuan
`RECALL_DATA_TIME_RANGE`	`Limited by financial report cycle`	Limits the time range of recalled data to match the quarterly/annual update schedule of energy and metals financial reports
`WEBHOOK_PUSH_INTERVAL`	`3600 seconds`	Real-time push polling interval for temporary announcements, balancing real-time performance and interface load

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. Testing should be conducted on local samples before finalizing settings.

Three Common Misconfigurations

An interface returns 400 Bad Request, and logs include request failed: Post "https://xxx". The FIELD_UNIT_CONVERSION setting is not enabled, and unit differences across data sources cause request parameter formats to fail to meet third-party interface requirements.
An upload size limit error is triggered when uploading a financial report file. The UPLOAD_FILE_MAX_SIZE configuration item is not adjusted based on the actual size of a single annual energy and metals financial report, and the default value for general documents is used instead.
Recalled financial report data includes non-target cycle industry news content. The RECALL_DATA_TIME_RANGE setting is not configured, and no filtering parameter based on financial report cycle is applied, resulting in the recall of unrelated non-financial report data.

How to Confirm Successful Configuration

Initiate a single request to pull financial report data for a single category, check whether the units of the returned fields meet expected standards, and verify that the FIELD_UNIT_CONVERSION configuration takes effect.
Upload a single simulated annual financial report file, confirm that the upload process proceeds without errors, and verify that the UPLOAD_FILE_MAX_SIZE configuration meets actual requirements.
Configure a recall rule filtered by quarterly cycle, initiate a test query, and check whether the time range of the returned data matches the preset financial report cycle.
Simulate a temporary announcement trigger scenario, check whether Webhook pushes are executed at the preset interval, and verify that the WEBHOOK_PUSH_INTERVAL configuration is reasonable.

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.