What the data for this category looks like
Thermal coal-related data mostly comes from industry monitoring platforms, port delivery ledgers, and origin production records. Update rhythms fall into three categories: real-time spot quotes, daily inventory data, and weekly supply and demand briefings. Document structures are mostly structured tables, with some semi-structured reports containing annotations. Core fields include cleared price, calorific value, origin identifier, delivery port name, and trading cycle. Each field is bound to a clear unit: cleared price uses yuan per ton, and calorific value uses kcal per kilogram.
What constraints these characteristics impose on workflow orchestration
Multi-source heterogeneous data sources and differentiated update rhythms require workflow configurations to pull data from different sources across multiple nodes, and set differentiated scheduled trigger rules. Mixed structured and semi-structured document formats require adding format conversion nodes in the workflow to unify data structures and avoid errors in subsequent processing. Clear unit field requirements require configuring parameter verification nodes to filter values with abnormal units, preventing data confusion in marketing content. Marketing content must match real-time market conditions, requiring the workflow to bind automatic execution triggers after data updates to ensure material timeliness.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
Scheduled Trigger Cron Expression | 0 0 8 * * * | Thermal coal spot quotes are mostly updated in the early morning each day, matching the regular publishing rhythm of marketing content |
Multi-data Source Pull Timeout | 300 seconds | Pull data from both port and origin sources simultaneously, avoiding process interruption due to single pull timeout |
Text Segment Length | 800–1200 characters | Balance the information density of thermal coal marketing content and user reading experience, avoiding overly long content that hinders information reception |
HTTP Request File Upload Size Limit | 100 MB | Adapt to the compressed package volume of bulk thermal coal supply and demand briefings, meeting conventional data import needs |
Workflow Branch Judgment Condition | Field contains "Delivery Port" | Distinguish between spot and long-term contract data, adapting to two different marketing material generation logics |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Parsing large thermal coal supply and demand reports takes a long time, avoiding early termination of the parsing process |
The parameter values provided on this page are common recommendations used as a starting point 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 mistakes
- When an HTTP node calls a backend interface, it cannot pass local txt format thermal coal data files, and returns status code 413. The cause is that the
UPLOAD_FILE_MAX_SIZEparameter is not adjusted. The default value is too small to accommodate bulk data files. - A workflow cannot be directly mounted to robot conversations. When triggered, a prompt indicates no binding entry. The cause is that workflow mounting permission is not enabled in robot configuration. The workflow can only be called via the independent runtime page.
- After importing a third-party json workflow, the text processing module does not display in the component library. The cause is that the modules relied on by the imported workflow are not enabled in the current workspace. The corresponding modules must first be enabled in component library management.
How to confirm the configuration is complete
- Review the scheduled trigger configuration's Cron expression, confirm whether it matches the actual update rhythm of thermal coal data.
- Execute a test workflow, check if the multi-data source pull results contain all configured data source fields.
- Upload a simulated thermal coal data txt file, verify that the HTTP node's file upload function returns normal processing results.
- Export the workflow's json configuration file, confirm that the file format complies with standard workflow import specifications.
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.