What the data for this category looks like
Carbon steel market trend data comes from domestic steel industry spot trading platforms and official market APIs from futures exchanges. There are two update schedules: spot data updates daily after market close, futures data updates in real time during trading hours for each trading day. The data is structured as a table with fields including product name, origin, specification model, today's transaction price, today's settlement price, trading volume, and month-on-month change. Some detailed specifications include tolerance parameters. All numeric fields use yuan/ton as the unit.
Constraints for forms and interactions
The multi-specification and multi-origin nature of carbon steel data requires forms to support multi-level filtering interactions by product, origin, and specification. This prevents interactive lag caused by loading full data in a single request. The differing update rhythms of different data sources require the interaction module to configure scheduled pull trigger rules that match the update periods of spot and futures data. Structured fields include multiple types of numeric parameters, so input boxes must bind unit verification rules to automatically block non-numeric or non-yuan/ton formatted inputs. Some detailed specifications include tolerance parameters, so forms must extend optional fields to support loading tolerance-related interactive controls on demand.
Configuration settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
formFields | Grouped into "Basic Information", "Market Data", "Tolerance Parameters", including product, origin, specification, today's transaction price, trading volume fields | Matches the structured field grouping logic of carbon steel market data, reduces user search effort |
inputValidationRule | Set numeric type verification, limit unit to yuan/ton, automatically intercept non-numeric inputs | Most carbon steel market fields use yuan/ton numeric format, prevents invalid inputs |
scheduledRefresh | Set spot data to trigger daily at 16:30, futures data to trigger at 15:00 on each trading day | Matches standard update periods for domestic steel spot and futures data |
filterPanelConfig | Enable multi-level filtering, arranged in the order product → origin → specification, default expand the product filtering panel | Carbon steel products have many specifications and origin options, hierarchical filtering reduces interaction complexity |
requestTimeout | Set to 15 seconds | Standard response duration for steel market data APIs, prevents interactive interruptions from timeouts |
datasourceSwitch | Enable spot data source by default, retain futures data source switching entry | Meets differentiated user needs for spot or futures market data |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three common configuration errors
- Phenomenon: A
quote type errorerror occurs when calling the form node, and the interface prompts that the variable format is abnormal. Cause: The variable reference format is not configured according to the yuan/ton unit requirement of carbon steel fields, and a non-numeric string is directly passed in. - Phenomenon: A call failure prompt appears when calling this form node across branches, and the link cannot jump normally. Cause: The global reuse configuration of the form node is not enabled, causing other branches to be unable to reuse the configured form structure.
- Phenomenon: Interface lag or errors occur during debug preview after enabling input guidance. Cause: The custom thesaurus for input guidance contains keywords that duplicate carbon steel fields, triggering interactive conflicts from duplicate matching.
How to confirm the configuration is complete
- Enter the debug preview interface, enter a carbon steel product name, verify that the filter panel correctly loads corresponding origin and specification options.
- Manually enter non-numeric content into the transaction price input box, verify that an automatic interception prompt is triggered.
- Wait for the corresponding update period, check whether the form automatically pulls the latest market data without timeout errors.
- Configure cross-branch calls to this form node, verify that link jumps work normally without node call failure prompts.
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.