What data for this category looks like
Data sources include public corporate financing announcements from domestic basic chemical industry associations, listing information from local equity trading centers, and public summaries from third-party industry databases. Updates occur at midnight daily, covering financing data from the previous workday. The number of entries in a single data update package fluctuates with industry activity levels. Documents use structured CSV or JSON format. Each record contains the following fields:
- Unified social credit code of the financing entity
- Name of the financing entity
- Affiliated chemical raw material subcategory (e.g., synthetic resin, basic chemical raw materials)
- Financing round
- Financing amount (unit: ten thousand RMB)
- Financing completion date
- Disclosure channel
- Name of the investor entity
Constraints for HTTP interfaces and external systems
The following constraints apply based on the characteristics of this data:
- The chemical raw material subcategory field requires the interface to include a category filtering parameter to accurately pull target data.
- The standardized unified social credit code field allows the interface to accept this code as a query condition, to filter out invalid financing records.
- The daily midnight update schedule requires external systems to set up scheduled pull tasks at fixed daily times. External systems must also adapt to the dynamic number of entries in data update packages, to avoid data omission caused by preset fixed entry thresholds.
- Financing amounts are fixed in units of ten thousand RMB. Interface return fields must clearly map the unit, to prevent unit conversion errors during parsing by external systems.
- Some targeted financing data requires permission verification. Interfaces must include an API key authentication step, to only allow authorized external systems to access the full dataset.
How to set configurations
| Configuration Item | Recommended Setting | Rationale |
|---|---|---|
api_request_timeout | 600 seconds | The data source for chemical raw material financing daily reports is a cross-platform summary, so a single pull may take a long time. 600 seconds covers most data pull scenarios |
response_content_type | application/json, text/csv | This category of data supports two structured formats to adapt to the parsing needs of different external systems |
filter_subcategory | Pass according to the target chemical raw material subcategory | This category of data includes multiple subcategories, so this parameter is required to accurately filter target data |
api_auth_mode | API_KEY authentication | Some targeted financing data requires permission control, and API_KEY authentication enables secure access for external systems |
max_return_items | 1000–2000 items | The number of daily chemical raw material financing entries fluctuates with industry activity. This range covers most scenarios and avoids returning overly large data sets |
unit_mapping_switch | Enabled | The financing amount is fixed in units of ten thousand RMB. Enabling this switch automatically attaches unit instructions to the return fields to avoid parsing errors |
The parameter values provided on this page are all conventional recommendations used as a starting point for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing.
Three common errors
- Scenario: Calling a designated financing interface returns
message: Invalid URL, code: 500. Cause: The target data source address of the interface is not configured correctly, or the passed URL does not include a valid protocol prefix (such as not adding http:// or https://). - Scenario: The financing amount field returned by the HTTP interface has no unit identifier, resulting in numerical conversion errors during parsing by external systems. Cause: The
unit_mapping_switchconfiguration item is not enabled, and no unit instruction is attached to the return fields. - Scenario: Scheduled pull tasks are triggered frequently, resulting in exceeding the interface call limit. Cause: The data daily update schedule is not adapted, the pull cycle is set to an interval shorter than 24 hours, or no incremental pull logic is configured.
How to confirm correct configuration
- Call the interface with a known chemical raw material subcategory parameter, and verify that returned results only include financing records for the target category.
- Check the financing amount field returned by the interface for a unit identifier, and confirm that it matches the configured
unit_mapping_switchstatus. - Trigger an interface call, and verify that the number of returned items falls within the preset
max_return_itemsrange. - Configure a scheduled pull task, wait one update cycle, and verify that the external system has obtained financing data updated from the previous workday.
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.