HTTP Interfaces and External Systems for Carbon Steel Financial Report Analysis

Carbon steel financial report data primarily comes from public annual and quarterly reports of listed steel enterprises, as well as monthly industry

What the data for this category looks like

Carbon steel financial report data primarily comes from public annual and quarterly reports of listed steel enterprises, as well as monthly industry monitoring data released by the China Iron and Steel Association. The data update schedule follows these rules: Annual reports of listed enterprises are disclosed collectively in April of the following year. Quarterly reports are made public within 15 days after the end of the quarter. Industry monthly data is updated around the 10th of each month. A single financial report document includes fields such as crude steel output, gross profit per ton of steel, finished steel yield rate, raw material procurement cost proportion, revenue scale, and more. Output is measured in ten thousand tons, cost is measured in yuan per ton, and profit margin is presented as a percentage. Most document structures use tabular financial statements and industry statistical entries.

What constraints these characteristics impose on HTTP interfaces and external systems

Integrating multi-source data requires adapting to different interface formats. Reports disclosed by exchanges are mostly in PDF format. Industry data released by the steel association is mostly in CSV or JSON format. Teams must configure differentiated parsing rules. Differences in update frequencies require precise scheduled pull plans for interfaces. Monthly industry data must match the update node on the 10th of each month. Quarterly financial reports must trigger incremental synchronization within 15 days after the end of the quarter. Carbon steel financial report fields include multi-unit values such as ten thousand tons and yuan per ton. Teams must clearly define field and unit mapping relationships during interface transmission to avoid numerical deviations during parsing. Some listed enterprises’ financial reports are disclosed across multiple pages. Interfaces must support pagination pull parameters to ensure complete acquisition of document content.

How to Set Configurations

Configuration ItemRecommended ValueRationale
PARSE_FILE_TIMEOUT300 secondsSingle PDF document of a carbon steel financial report typically exceeds 100 pages, resulting in long parsing times. 300 seconds covers the full parsing process
UPLOAD_MAX_SIZE200 MBSingle annual financial report PDF file size usually falls between 100 and 180 MB. 200 MB meets single-file upload requirements
SYNC_CRON0 10 1-15 *Adapts to the update schedule of quarterly financial reports within 15 days after the quarter ends and monthly data on the 10th of each month. Covers core synchronization time nodes
RETRY_MAX_ATTEMPTS3 attemptsAddresses temporary fluctuations in exchange or steel association interfaces. 3 retries improve synchronization success rates without increasing server load
FIELD_UNIT_MAPPINGBind units to individual fieldsCarbon steel financial reports include multi-unit fields such as ten thousand tons and yuan per ton. Binding units avoids confusion of numerical units during parsing
PAGE_PULL_LIMIT20 items per pageSome industry data interfaces return results in pages. 20 items per page matches the default pagination specification of most steel association data interfaces

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 case-by-case analysis. It is recommended to test on your own samples before finalizing settings.

Three Common Mistakes

  • Calling the file upload interface returns the 413 Request Entity Too Large status code. The cause is failure to adjust the UPLOAD_MAX_SIZE configuration to match the size range of carbon steel financial report PDF files.
  • No corresponding node appears after importing the workflow template, and no data flows in during workflow execution. The cause is failure to bind the dedicated field mapping rules for carbon steel financial reports, resulting in parsed fields failing to match workflow input parameter requirements.
  • Calling the text embedding interface returns the 500 Internal Server Error status code. The cause is failure to set a reasonable EMBEDDING_BATCH_SIZE. Batch requests for long text fragments exceed the interface’s carrying limit.

How to Confirm Configurations Are Set Correctly

  • Upload a locally saved carbon steel annual financial report PDF file, and check whether the parsed results returned by the interface include the preset core fields.
  • Manually trigger a synchronization task, and check whether the interface return logs include timestamps matching the SYNC_CRON configuration, with no abnormal error records.
  • Call the embedding interface to test the parsed text fragments, and check whether the field units match the preset FIELD_UNIT_MAPPING rules.
  • View the workflow operation logs, confirm that the bound field mapping rules have been correctly loaded, and there are no missing node 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.