HTTP Interfaces and External Systems for Auto Parts Yield

What Data for This Category Looks Like

This category’s market and yield rate data draws primarily from daily transaction settlement data for auto parts subcategories on public bulk commodity trading platforms, and supporting quotation data from original equipment manufacturers on industry supply chain platforms. Full data for the current day is pushed after 16:00 daily. Data is provided as a JSON format array. Each entry includes fields such as sku_code, category_name, settlement_price, daily_price_change, and update_time. The unit for settlement_price is yuan per piece, and the unit for daily_price_change is yuan. No percentage-based expressions are used.

Constraints Imposed by These Characteristics on HTTP Interfaces and External Systems

This category’s data fields include precise SKU codes, category names, settlement prices and price change amounts. It has a fixed update window. HTTP interfaces must support exact queries by SKU code. They must also support incremental data pulling via update timestamps. This avoids repeated pulls of full datasets. External systems must send requests after 16:00 daily. Outdated unupdated data will be returned otherwise. Field units include yuan per piece and yuan. Verify unit formats during integration. Align these formats with the external system’s business logic. This prevents unit conversion errors.

Configuration Settings

Configuration Item	Recommended Value	Rationale
`api_request_timeout`	600 seconds	Matches the response time requirements of this category’s data interface. Prevents request timeouts when data volume is large
`incremental_sync_threshold`	1 day	Aligns with the daily data update rhythm. Only pulls incremental data from the last 1 day
`unit_check_enabled`	Enabled	Ensures the units of `settlement_price` and `daily_price_change` returned by the interface match the storage units of the external system
`sku_query_limit`	200 items/request	Adapts to the SKU count scale of this category. Prevents timeouts caused by excessive data volume in a single request
`update_time_check_enabled`	Enabled	Verifies the update time of returned interface data. Ensures retrieval of the latest data after 16:00 on the current day
`response_format`	JSON array format	Matches the standard return format of this category’s data. Aligns with the parsing logic of the external system

The parameter values provided on this page are common starting points for configuration. Actual values are influenced 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 Misconfigurations

Symptom: A 401 Unauthorized error appears when calling the HTTP interface. Data cannot be pulled normally. Cause: The interface identity token was not updated synchronously. Or the corresponding parameter was not updated in the external system configuration after the token was updated.
Symptom: The unit of data fields stored in the external system does not match business expectations. Numerical logic for daily_price_change is abnormal. Cause: The unit_check_enabled configuration was not enabled. Unit formats of returned interface data were not verified.
Symptom: Scheduled data pulling retrieves non-current day outdated data. The current day’s updated dataset is not obtained. Cause: Requests were not sent after 16:00 daily. Or the update_time_check_enabled configuration was not enabled.

How to Verify Proper Configuration

Send a query request by sku_code. Check that returned fields include preset fields such as sku_code and settlement_price. Confirm field formats match expectations.
Check that the response time of the interface request is below the threshold set in the api_request_timeout configuration. Confirm no timeout errors occurred.
Verify the update_time field of returned interface data. Confirm the time is after 16:00 on the current day. This meets the update window requirements.
After enabling unit_check_enabled, check external system logs. Confirm no unit mismatch prompts appear. Confirm the verification logic 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.