HTTP Interfaces and External Systems for Minor Metal

What the data for this category looks like

Minor metal financial report data mainly comes from public disclosures of domestic and overseas mainstream stock exchanges, industry monitoring reports released by non-ferrous metal industry associations, and organized data from third-party professional information platforms. Update cycles cover annual, quarterly, and monthly. Annual financial reports must be disclosed by the end of April of the following year. Quarterly reports are released within 15 days after the end of the quarter. Monthly industry data is updated by the 10th of the following month. Most documents are in docx or PDF format, including consolidated financial statements, specialized data such as output, inventory, and prices of minor metal subcategories. Fields include enterprise code, reporting period, metal category name, output, inventory, average price, and other dedicated content.

What constraints do these characteristics impose on the "HTTP Interfaces and External Systems" link

The multi-source, multi-format, and dedicated field characteristics of minor metal financial reports bring three constraints to external system access. First, support for parsing multiple document formats such as docx and PDF is required, so the interface must be configured with corresponding content type filtering rules. Second, the update frequency of data across different cycles varies greatly, so the interface must support dynamically adjusting the polling interval based on the reporting period to avoid traffic restrictions caused by frequent calls. Third, the units and naming rules of dedicated fields differ from general financial reports, so the interface must support custom field mapping to ensure parsed data can match business requirements. In addition, some industry monitoring data interfaces have access frequency limits, so a reasonable retry mechanism and timeout parameters must be configured.

How to set the configurations

Configuration Item	Recommended Value	Rationale
`PARSE_FILE_TIMEOUT_SECONDS`	`300-600 seconds`	Minor metal financial reports contain multi-category detailed data, which takes a long time to fully parse
`UPLOAD_FILE_MAX_SIZE`	`500 MB`	The total size of complete annual financial reports plus industry attachments is generally large
`api_request_timeout`	`120 seconds`	External financial report interfaces return large amounts of data, requiring sufficient response waiting time
`content_type_filter`	`application/vnd.openxmlformats-officedocument.wordprocessingml.document,application/pdf`	The mainstream disclosure formats for minor metal financial reports are docx and PDF
`field_mapping_rule`	`Map according to the preset fields of the minor metal financial report template`	The dedicated field naming and units of minor metal financial reports follow unique rules
`retry_count`	`3 times`	External interfaces may experience temporary failures due to exchange traffic fluctuations, and reasonable retries can improve success rates

The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis, and it is recommended to test on your own samples before finalizing settings.

Three common mistakes

Calling the /api/admin/initv490 interface returns a 415 Unsupported Media Type error, and the docx file can be downloaded normally when accessing the corresponding link via a browser. Cause: The content_type_filter parameter is not correctly configured, and docx format file stream parsing is not allowed.
Calling the chat interface returns a 503 Service Unavailable status code, and model responses cannot be obtained normally. Cause: The base address and key parameters of the external model interface are not correctly configured, resulting in an inability to establish a valid connection.
The minor metal output field is empty in the parsed financial report data. Cause: The field_mapping_rule parameter is not configured to match the dedicated detailed fields of minor metals, resulting in target data being missed during parsing.

How to confirm that the configuration is correct

Execute a curl command to call the target financial report interface, check if the Content-Type in the returned response header includes the preset docx or PDF type, and verify that the content_type_filter configuration covers this type.
Upload a standard annual minor metal financial report document, check if the parsed fields include dedicated fields such as minor metal subcategories, output, and prices, and verify that the field_mapping_rule configuration is effective.
Simulate high-frequency interface calls, check if the PARSE_FILE_TIMEOUT_SECONDS configuration is sufficient to avoid timeout errors, and verify that the interface response time meets business requirements.
Check the system operation logs to confirm that the request parameters and configuration items when calling external systems are consistent, with no missing or incorrect parameter values.

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.