HTTP Interfaces and External Systems for Papermaking

What the data for this category looks like

Data for papermaking financing daily reports comes from industry supply chain finance databases, publicly disclosed bank credit information, and upstream and downstream transaction data from the papermaking industry chain. Full financing records from the previous day are updated daily on a T+1 schedule. Each financing record occupies one row of data. Core fields include enterprise name, financing type, financing amount, financing term, fund provider type, and effective date. Financing amount is measured in RMB ten thousand yuan. Financing term is measured in natural days. Financing type is fixed to three categories: working capital loans, bill financing, and supply chain factoring.

Constraints imposed by these characteristics on HTTP interfaces and external systems

The daily T+1 update schedule requires interface pull frequency to align with the natural day cycle, to avoid high-frequency requests that retrieve duplicate data. Numeric fields have clear units. The interface must include units in returned data, otherwise external systems will experience parsing errors. The papermaking industry has a large number of financing entities, so single-interface returned data volume is high. The interface must support paginated pulls to support batch processing needs. Financing type is a fixed enumeration value. The interface must support a filter parameter for financing type, to help external systems categorize and integrate data. Enterprise financing information involves sensitive business data. The interface must include identity verification parameters to ensure secure data transmission.

How to configure settings

Configuration Item	Recommended Setting	Rationale
`API_REQUEST_RATE_LIMIT`	`1 request/24 hours`	Aligns with the daily update schedule of papermaking financing daily reports, to avoid triggering interface rate limits
`RESPONSE_FIELD_UNIT_MARK`	`Enabled`	Both financing amount and financing term have clear units. Enabling this prevents parsing errors in external systems
`BATCH_PULL_PAGE_SIZE`	`100–200 records/page`	Adapts to the distribution of financing entities in the papermaking industry, avoids timeouts caused by overly large single-page data returns
`CONTENT_TYPE_REQUIREMENT`	`application/json`	Unifies the request format for external systems, reduces the probability of format parsing failures
`ERROR_RETRY_MAX_TIMES`	`3 times`	Addresses occasional exceptions such as network fluctuations, improves docking success rates
`DATA_SYNC_AUTO_TRIGGER`	`2:00 AM daily`	Aligns with the T+1 update schedule, ensures that full financing data from the previous day is retrieved

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 individual analysis. It is recommended to test on your own samples before finalizing settings.

Three common mistakes

Phenomenon: The set of CSV files created via the API does not match the data generated in the interface. Cause: The RESPONSE_FIELD_UNIT_MARK configuration is not enabled. The CSV fields returned by the interface do not include units for amount and term, which differs from the formatted data displayed in the interface with units.
Phenomenon: HTTP requests cannot properly pass JSON format parameters. Cause: The CONTENT_TYPE_REQUIREMENT configuration is not set to application/json. The interface only accepts request bodies in the specified format.
Phenomenon: Financing daily report documents uploaded via the API cannot be correctly parsed by the knowledge base. Cause: The BATCH_PULL_PAGE_SIZE setting is not adapted to the number of document rows, or the document format does not match the knowledge base parsing rules, resulting in failed normal data synchronization.

How to confirm correct configuration

Send a test pull request, check if the returned JSON fields include unit labels, to confirm that the RESPONSE_FIELD_UNIT_MARK configuration is active.
Initiate only one pull request within 24 consecutive hours, check that the interface does not return a 429 Too Many Requests status code, to confirm that the API_REQUEST_RATE_LIMIT configuration is correct.
Upload a simulated CSV file of papermaking financing daily reports, check if the knowledge base can correctly identify core fields such as enterprise name and financing amount, to confirm that the BATCH_PULL_PAGE_SIZE and parsing configurations match.
Initiate a test request with a non-JSON format request body, check that the interface returns a 400 Bad Request status code, to confirm that the CONTENT_TYPE_REQUIREMENT configuration is active.

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.