What Data for This Category Looks Like
Precious metal market data is sourced from public APIs of global authoritative precious metal trading markets, including leading global precious metal trading markets and domestic exchange institutions. Data updates in real time during trading sessions, and syncs at fixed intervals outside trading hours. The standard return format is a JSON array, where each element corresponds to a single precious metal product. Each entry includes fields such as symbol (product code), bid (buy quote), ask (sell quote), fixing_time (official fixing time), and others. Quote units are typically USD/oz or CNY/g, and fixing prices are only pushed during fixed daily periods.
What Constraints These Characteristics Impose on HTTP Interfaces and External Systems
Precious metal data sources are deployed across multiple time zones. Implement time zone conversion to adapt to domestic business scenarios. Field names and units vary across different trading markets. Deploy unified mapping rules to avoid data parsing errors. The update frequency of real-time market data fluctuates with trading sessions. Configure dynamically adjustable request intervals to prevent rate limiting from frequent requests. Most authoritative data sources require signature authentication. Include compliant identity verification parameters in interface requests to ensure valid data access permissions.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
request_interval | 30–60 seconds (trading sessions), 3600 seconds (non-trading sessions) | Adapts to the update frequency of precious metal market data, avoids rate limiting from frequent requests, and maintains data timeliness |
auth_sign_type | HMAC-SHA256 | Most authoritative precious metal data sources use this signature method to secure interface access |
field_mapping | Preset mapping tables for target products (e.g., XAUUSD → spot gold) | Unifies differences in field names across data sources and adapts to internal system data formats |
timezone_convert | Convert to UTC+8 time zone | Meets time display requirements for domestic business scenarios |
retry_threshold | 3 retries, 5-second interval between attempts | Addresses temporary network fluctuations or brief interface unavailability, avoids triggering risk controls from excessive repeated requests |
unit_convert_rule | Convert according to target scenario (e.g., USD/oz to CNY/g) | Unifies data units and reduces integration costs for external systems |
The parameter values provided on this page are common starting points for configuration. Actual values are affected by material forms, data volume, and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: Returns
502 Bad Gatewaystatus code when calling the interface. Cause: Failed to adapt to cross-region access restrictions of precious metal data sources, and no proxy or correct request headers were configured, causing intermediate gateway forwarding failure. - Symptom: Fields are empty or have abnormal formats after synchronization. Cause: The
field_mappingparameter was not configured, and raw data source fields were used directly without handling field differences across products, resulting in failure for internal systems to recognize the data. - Symptom: Interface rate limiting is triggered due to frequent scheduled task triggers. Cause: The
request_intervalvalue was not adjusted between trading and non-trading sessions, and short interval requests were still used outside trading hours, exceeding the data source's call quota.
How to Confirm Successful Configuration
- Call the test interface, confirm that the returned JSON data includes the preset
symbol,bid,askfields, and the units match the configured conversion rules. - Check the scheduled task logs to confirm that the request interval during trading sessions matches the
request_intervalsetting, and the request interval is automatically adjusted outside trading hours. - Simulate a network fluctuation scenario, confirm that automatic retries are triggered after reaching the
retry_threshold, and data is successfully obtained without duplicate requests. - Compare the fixing price from the official data source, confirm that the time zone conversion of the synchronized
fixing_timefield is correct, and the numerical values match.
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.