What this category’s data looks like
Data for this category comes from coating supplier TDS/SDS, real-time collected data from spray booths and ovens, colorimeters, film thickness gauges, workshop environmental monitoring equipment, and the factory MES system. Daily documents include coating process cards, coating batch sheets, paint mixing records, film thickness and color difference reports, oven curves, defect repair sheets, and VOCs ledgers. Data updates align with each coating batch, each shift production cycle, and continuous real-time collection. Fields include film thickness, color difference values, oven temperature, VOC concentration, and more, with corresponding batch and production node identifiers attached.
What constraints these characteristics impose on HTTP interfaces and external systems
The multi-source, heterogeneous real-time and batch data of this category requires HTTP interfaces to support mixed-type request and response formats, to meet the need for pulling multiple types of production documents in a single batch request. Differences in update rhythms across data types require the interface to support both on-demand triggering and scheduled polling invocation modes. Fields include specific production identifiers and units, so interface parameters must clearly map to business fields to avoid unit conversion errors. At the same time, inspection and audit results are tied to batch production quality, so the interface must support returning structured audit conclusions and associated data to facilitate direct integration of audit results by external systems.
How to configure settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Authorization | Bearer {API key assigned by the platform} | Complies with FastGPT API authentication specifications to secure interface calls |
variables | {"batch_no": "coating batch number", "film_thickness": "film thickness value", "film_unit": "μm", "color_diff": "color difference value", "diff_unit": "ΔE"} | Matches core fields of spraying and coating business, clearly passes production node identifier and unit parameters |
responseData | Only return audit conclusions, associated defect lists, and VOC compliance status | Streamlines interface response content to meet external systems’ needs for fast integration of audit results |
| Single call timeout | 600 seconds | Covers typical time required for pulling full-process coating data and conducting audits, to avoid mid-process interruptions |
| Polling interval | 30–60 seconds | Matches the update rhythm of each shift or batch in coating production, balances data real-time performance and interface call pressure |
Three common misconfigurations
- Symptom: Audit results returned by the interface overlay previous batch historical records onto the current batch’s coating data, with duplicate batch identifiers appearing in
responseData. Cause: Unique batch identifier parameters were not clearly passed invariables, leading to unreset context and reuse of previous conversation context. - Symptom: No response is returned for an extended period after calling the interface, and the external system triggers a timeout error with status code 504 or a custom timeout prompt. Cause: The single call timeout was not set appropriately, exceeding the external system’s waiting threshold.
- Symptom: The film thickness and color difference fields returned by the interface do not include unit information, making it impossible for external systems to parse the measurement standard. Cause: Structured unit return parameters were not configured in
responseData, resulting in loss of measurement information for business fields.
How to verify a successful configuration
Invoke the interface with a test coating batch number, confirm that responseData only contains audit results for this batch, with no residual historical data, and that FastGPT v4.17.0 context management rules are followed. Simulate a single batch pull of multiple types of coating documents, verify that the interface response duration does not exceed the preset timeout threshold. Compare the fields returned by the interface with the field list of spraying and coating business documents, confirm that all required business fields have been correctly mapped. Check that the correct Authorization parameter is included in the interface request header, verify that the authentication process operates normally.
The values provided are common starting points and should be evaluated against local operational samples.