What Data for This Category Looks Like
Industrial metal data sources include public spot trading platforms, industry inventory monitoring databases, and futures exchange market data APIs. Update rhythms are as follows: spot prices update every hour, inventory data updates every business day, and futures quotes update every 5 minutes. Document structure consists of structured entries. Each entry includes product identifier (such as electrolytic copper, aluminum ingot), physical specification (such as Al99.70), trading venue, latest transaction price, daily trading volume, and inventory balance. Units are yuan/ton, ton, and lot. Data fields must map to specific products and specifications, otherwise accurate information cannot be returned.
Constraints Imposed on Tool Calling and Plugins
High-frequency updated market data requires tool calls to match the data refresh rhythm, to avoid using expired information. The multi-field and specification-segmented structure requires tool calls to pass parameters such as product, specification, and trading venue. Otherwise, returned data will be mixed. Public API call limits require configuring call frequency restrictions to prevent triggering rate-limiting mechanisms. Data formats vary across different sources, so field mapping rules must be configured in plugins to ensure marketing content can correctly call corresponding fields when generating copy. For periods when data is missing due to market closure, fallback logic for empty data must be configured to avoid generating invalid marketing content.
How to Set Configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
toolCallTimeout | 300 seconds | Industrial metals market APIs typically have response times between 100-250 seconds, this setting provides sufficient buffer |
maxToolRetries | 2 attempts | Addresses temporary API rate limiting or network fluctuations, avoids repeated calls that trigger stricter quota restrictions |
toolCallFrequency | 10 calls per minute | Aligns with the call limit requirements of most public industrial metals APIs |
requiredToolParams | ["metalType", "specification", "tradingMarket"] | Ensures complete product, specification, and trading venue parameters are passed during tool calls, preventing invalid returned data |
cacheTTL | 3600 seconds | Matches the hourly update rhythm of spot prices, avoids using outdated market data |
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. Each scenario requires individual analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Mistakes
- Phenomenon: A "missing parameter" error is returned during tool debugging, and the AI generates a response without triggering a tool call. Cause: Required parameters such as industrial metal product and specification are not explicitly required in the system prompt, so the AI cannot generate a compliant tool call request.
- Phenomenon: The SQL Server database plugin fails to read industrial metal inventory data. Cause: The database connection string, target table name
metal_inventory, and field mapping rules are not specified in the plugin configuration, so structured data fields for industrial metals cannot be matched. - Phenomenon: Generated marketing copy uses expired industrial metal price data. Cause: The cache duration is configured too long, and does not match the data update rhythm, resulting in cached data being used instead of calling the latest API interface.
How to Confirm Configuration Is Correct
- Enter the FastGPT tool debugging interface, manually pass electrolytic copper, Al99.70, and Shanghai Metal Network parameters, and check whether accurate real-time market data is returned.
- Review tool call logs to confirm that all parameters for each call are complete, and that call frequency does not exceed the configured limit.
- Submit a marketing content generation request, and check whether the generated copy includes the latest price, inventory, and other data returned by the tool.
- Wait more than 3600 seconds, then submit the same request again, confirm that the API is called again to obtain the latest data, and cached data is not used.
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.