What This Category’s Data Looks Like
Data sources for paper manufacturing industry market and yield-related data are primarily public APIs from national paper industry associations and industry market interfaces from domestic bulk commodity spot trading platforms. Data is updated once daily with full datasets for the previous trading day, with updates completing between 17:30 and 19:00 on the current day. Data is delivered in standard JSON format. Each record includes fields for category name, origin, specification, ex-factory price, wholesale price, and price change-related fields. Field and unit rules: Category name and origin are string types. Specifications include parameters such as grammage and thickness. Ex-factory price and wholesale price use yuan/ton as the unit. There are no percentage-based statistical fields.
What Constraints Do These Characteristics Impose on HTTP Interfaces and External Systems?
The daily full update feature of paper manufacturing market and yield data requires HTTP interface calls to align with the data source's update time window, to avoid pulling unupdated cached data. Differences in specification fields across multiple categories require interface requests and parsing to support dynamic field mapping, to adapt to parameter differences across different paper manufacturing categories. The unified yuan/ton unit requirement requires unit conversion during interface integration, to avoid confusion with measurement units of other categories. Call rate limiting rules for public data sources require configuring reasonable request intervals and retry mechanisms, to avoid request failures due to triggered rate limits. Additionally, some data sources require valid request header identifiers, so correct request header parameters must be configured to avoid being blocked by the interface.
How to Set Configuration Parameters
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
request_timeout | 30 seconds | Paper manufacturing daily report interfaces return small datasets, 30 seconds is sufficient to complete request and response reception, avoiding task interruptions from long waits |
retry_max_times | 2 times | Public data source interfaces have occasional fluctuations; limited retries can reduce single request failure rates and ensure stable daily report broadcasting processes |
proxy_enable | false | Most paper manufacturing public data sources do not require a proxy. If the deployment environment cannot directly access the public network, change to true and configure the corresponding proxy address |
response_parse_mode | json | The standard return format for paper manufacturing market data is JSON; using JSON parsing allows quick extraction of target fields and avoids format parsing errors |
schedule_cron | 0 19 * * * | Triggers pulling at 19:00 daily, executing after most data sources have completed updates to ensure access to the latest previous trading day market data |
field_mapping | Set based on actual testing | Different data sources return different field names; original fields must be mapped to unified paper manufacturing market fields to ensure compatibility with downstream systems |
The parameter values provided on this page are all common recommended 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 Configuration Mistakes
- Symptom: Calls to the paper manufacturing market interface return the
429 Too Many Requestserror code. Cause: No reasonable request interval was configured, and high-frequency calls triggered the rate limiting rules of the data source interface. - Symptom: Data source interfaces cannot be called in a restricted network environment, and logs show connection timeouts. Cause: The
proxy_enableconfiguration item was not enabled, and theproxy_urlparameter was not configured, making it impossible to access public network data sources via a proxy. - Symptom: Downstream systems receive inconsistent market data units, with some displayed in formats other than yuan/ton. Cause: Field mapping rules were not correctly configured, and the unit returned by the original interface was not converted to the standard format required by downstream systems.
How to Confirm Configurations Are Correct
- Manually trigger the configured HTTP request, check that the returned raw data and mapped fields match the configuration requirements, and confirm that core fields are not missing.
- View scheduled task execution logs, confirm that after the specified trigger time, the interface request succeeds and the date of the returned data is the previous trading day, meeting the update rhythm requirements.
- Test proxy configuration in a restricted network environment, confirm that interface requests and data parsing can be completed normally after enabling the proxy.
- Simulate downstream system calls to processed market data, confirm that units and field formats meet the docking standards of downstream systems.
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.