What data for this category looks like
Commercial vehicle marketing content data mainly comes from dealer CRM systems, official vehicle configuration databases, regional inventory management systems, and offline event registration systems. The data update rhythms differ: core vehicle configurations are updated quarterly, regional inventory is synced daily, and offline event registration data is generated in real time. Most data is in structured JSON format, with fields including vehicle identification number (VIN), model name, gross mass, wheelbase, official suggested price, stock status, dealer ID, and others. The unit of gross mass is kilograms, wheelbase is millimeters, and suggested price is ten thousand yuan.
Constraints for HTTP Interfaces and External Systems
Commercial vehicle-specific fields such as VIN, gross mass, and wheelbase require external interfaces to return corresponding fields. Without these fields, accurate marketing content cannot be generated. Multi-data source integration requires HTTP interfaces to connect to multiple external services including dealer CRM and inventory systems. This requires handling cross-system field mapping and data merging. High-real-time event registration data requires interfaces to support high-frequency pulling. Inventory and configuration data allow appropriate caching. Authentication methods vary across different data sources. Independent authentication parameters must be configured for each external interface.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
externalApiTimeout | 600 seconds | Commercial vehicle data needs to be pulled across multiple systems, single request latency may be long; 600 seconds covers most normal invocation scenarios |
apiAuthToken | Configured with the exclusive key provided by the external system | Commercial vehicle dealer data is internal sensitive information; authentication parameters must be used to ensure interface access security |
responseFieldWhitelist | Includes vin, modelName, grossMass, wheelbase, stockStatus, dealerId | Filter non-essential fields, retain only commercial vehicle-specific and core fields required for marketing content generation |
cacheExpireSeconds | 86400 seconds | Commercial vehicle model configurations are updated quarterly, inventory data is updated daily; 86400 seconds balances timeliness and interface performance |
requestRetryTimes | 3 times | Address temporary network fluctuations of external interfaces, reduce marketing content generation failures caused by short-term exceptions |
fieldMappingRule | Map the external interface's total_price to productPrice | Unify internal field naming, simplify field invocation logic during marketing content generation |
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 on your own samples before finalizing settings.
Three Common Misconfigurations
- The symptom is receiving a 401 Unauthorized status code when calling an external interface. The cause is incorrect configuration of
apiAuthToken, or use of an expired dealer system key. - The symptom is missing commercial vehicle-specific fields such as gross mass and wheelbase in generated marketing content. The cause is failure to add corresponding fields to
responseFieldWhitelist, or incorrect configuration of the field mapping rule. - The symptom is external interface requests continuing to run after the client closes the SSE connection, with chat records not saved to the database. The cause is not enabling the SSE interruption switch for FastGPT 4.8.22 or later, or setting
externalApiTimeouttoo long to prevent active request termination.
How to Confirm Successful Configuration
- Call the configured external interface, verify that the returned results include commercial vehicle-specific fields such as
vinandgrossMass, and that field units match preset requirements. - Use FastGPT's interface testing tool to send a marketing content generation request, check for successful authentication and data pulling records in the backend logs.
- Simulate the client closing the SSE connection, confirm that the FastGPT backend can actively terminate external interface requests, and that chat records are correctly saved to the database.
- Modify
cacheExpireSecondsto 300 seconds, observe whether the interface cache update frequency aligns with the adjusted expectation.
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.