HTTP Interfaces and External Systems for Precious Metals

What the Data for This Category Looks Like

Data for precious metals intelligent due diligence reports primarily comes from authoritative trading platforms such as the Shanghai Gold Exchange and the London Bullion Market Association, as well as industry research institutions. Real-time spot quotes update every 15 seconds. Daily position reports are released one hour after market close on trading days. Industry research reports are updated weekly or monthly. The document structure includes fields such as trading product code, latest transaction price, price change percentage, trading volume, delivery inventory, upstream and downstream supply and demand data, and more. Price units are mostly CNY/gram or USD/ounce. Trading volume is measured in kilograms or tons. Some cross-border data includes exchange rate conversion fields.

Constraints for HTTP Interfaces and External System Integration

The multiple update frequencies, multi-unit systems, and complex field structure of precious metals data create clear constraints for HTTP interface and external system integration. Real-time spot quotes require interface request intervals not exceeding 15 seconds. Configure short timeout periods to avoid data lag. Differences in units across multiple data sources—such as domestic CNY/gram and international USD/ounce—require interface return fields to include unit identifiers, or unified conversion rules to be specified in request parameters. Data sources with different update frequencies must be split into separate request tasks, to prevent low-frequency industry research reports from occupying request quotas allocated to high-frequency trading data. The large number of document fields requires specifying a return field range in interface requests to reduce invalid data transmission.

Configuration Settings

Configuration Item	Recommended Setting	Rationale
`requestInterval`	10–15 seconds	Matches the update frequency of precious metals real-time quotes, avoids excessive requests that trigger rate limits or cause data lag
`timeout`	30 seconds	Real-time data has relatively low transmission latency; an overly long timeout setting leads to backlogs in batch requests
`filterFields`	`["symbol", "latestPrice", "tradingVolume", "totalPosition", "publishTime"]`	Filters core fields required for due diligence reports, reduces invalid data transmission
`unitConvertRule`	`{"price": "CNY/克", "volume": "千克"}`	Unifies unit formats across multiple data sources, aligns with the output requirements of due diligence reports
`retryCount`	2 attempts	Precious metals data sources have relatively high stability; excessive retries will occupy request quotas
`externalProxy`	Set based on actual testing	Configure a compliant proxy when connecting to cross-border data sources to avoid access restrictions

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 specific analysis, and it is recommended to test against the reader’s own samples before finalizing settings.

Three Common Misconfigurations

Scenario: Interface calls return 400 Bad Request with a parameter format error prompt. Cause: Failed to pass the symbol parameter in accordance with the requirements of the precious metals data source, such as using a universal trading code instead of the exclusive code for the corresponding precious metal product.
Scenario: Mixed units appear in price fields of due diligence reports, such as both CNY/gram and USD/ounce. Cause: The unitConvertRule was not configured, or the rule was set incorrectly, failing to unify unit formats across multiple data sources.
Scenario: Interface calls return 504 Gateway Timeout errors or task timeout flags. Cause: The requestInterval was set too short, and high-frequency requests triggered data source rate limits, causing requests to fail to complete within the timeout period.

How to Verify Proper Configuration

Initiate a single test request, check whether the returned data fields match the filterFields configuration, and whether the units conform to the preset unitConvertRule.
Initiate multiple consecutive test requests, verify that the request intervals match the requestInterval setting, and that no rate limit error prompts appear frequently.
When connecting to cross-border data sources, test the interface via the proxy, confirm that data can be obtained normally and no access permission errors occur.
Generate a test version of the due diligence report, verify that core data such as prices and trading volumes match the real-time display content of the data source.

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.