What the data for this category looks like
Coking coal financing daily report data comes from Shanghai Futures Exchange coking coal contract transaction ledgers, domestic coal trader financing settlement systems, and northern port coking coal outbound financing records. The update schedule is to publish same-day data by 17:00 each trading day, delayed on holidays. The document uses a structured table format, including fields such as contract code, contract name, financing purchase amount, financing balance, financing repayment amount, net financing purchase amount, closing volume, position volume, and daily average transaction price. The unit of amount is ten thousand yuan, the unit of position volume is lots, and the unit of average transaction price is yuan/ton.
Constraints imposed by these characteristics during deployment and upgrade
The multi-data-source nature of the coking coal financing daily report requires configuring multiple interface authentication and data aggregation logic during deployment. This prevents missing daily reports due to single data source failure. The daily scheduled update schedule requires calibrating the scheduled task trigger time to before 17:00 during deployment. This ensures same-day data is generated on time. The fixed-field and unit structured format requires the data parsing module to strictly match field names and unit rules. Do not adjust the mapping logic arbitrarily. The fixed naming format of coking coal contract codes requires adding contract code validity checks in the data verification link. This filters invalid data. Additionally, the data source structure for this report is relatively stable but may adjust with exchange rules. During upgrades, retain old version field compatibility configurations to avoid parsing failures after version updates.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
DATA_SYNC_CRON | 0 16 * * 1-5 | Coking coal financing daily reports are updated by 17:00 on trading days. Trigger the sync task 1 hour in advance to ensure same-day data is stored on time, and run only on trading days |
PARSE_FIELD_MAPPING | {"Contract Code": "contract_code", "Financing Purchase Amount": "buy_amount", "Financing Balance": "balance_amount"} | Match the standard field names of the coking coal financing daily report to ensure structured data is correctly mapped to knowledge base storage fields |
UPLOAD_FILE_MAX_SIZE | 50 MB | A single coking coal financing daily report file usually does not exceed 20 MB. Reserve sufficient space while avoiding oversized files blocking the parsing process |
PARSE_FILE_TIMEOUT_SECONDS | 300 seconds | Structured file parsing does not require complex processing. 300 seconds is sufficient to cover parsing time for conventional file sizes, avoiding timeout interruptions |
DB_INDEX_FIELDS | contract_code, trade_date | Queries for coking coal financing daily reports usually start with contract code and trade date. Setting a composite index can improve retrieval speed |
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 specific analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Phenomenon: After deploying via image packaging, uploading a coking coal financing daily report file, the system cannot recognize the attachment content and shows no error prompt. Cause: The local file parsing dependency directory was not correctly mounted during deployment, resulting in missing dependent packages required for structured file parsing in the image, and unable to complete field extraction.
- Phenomenon: When calling the knowledge base interface to query coking coal financing data, an AxiosError 404 is returned. Cause: External network access permissions for the container were not enabled during deployment, resulting in inability to connect to the coking coal data source interface, and the request cannot be completed normally.
- Phenomenon: After configuring the scheduled sync task, some trading day data is not updated on time. Cause: The Cron expression for the scheduled task does not exclude holidays, resulting in inability to pull same-day updated data when triggering sync on holidays.
How to confirm the configuration is complete
- Manually upload a standard coking coal financing daily report file, check if the parsed fields match the preset
PARSE_FIELD_MAPPINGconfiguration. - Trigger a manual sync task, check if coking coal financing data entries for the corresponding trading day are generated in the database.
- Call the knowledge base query interface, pass a known coking coal contract code, confirm the interface can normally return matching data.
- View the scheduled task log, confirm whether the sync task on trading days is triggered on time and has no error messages.
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.