What the data for this category looks like
Gas industry financial report data mainly comes from public quarterly and annual reports of listed gas enterprises, industry operation disclosures from local energy regulatory authorities, and metrological ledger data from gas supply and sales links. Regular financial reports are updated quarterly. Monthly operation data is updated monthly. The structure of a single financial report document includes fields such as total gas supply, total revenue, procurement costs, pipeline network operation and maintenance costs, number of end users, and total length of municipal pipeline networks. The units are cubic meters, yuan, yuan, yuan, 10,000 households, and kilometers respectively. Some detailed reports also include specialized data such as LNG procurement prices and gas storage reservoir capacities.
Constraints imposed by these characteristics on HTTP interfaces and external systems
The multi-source data characteristics of the gas category require HTTP interfaces to support connection to three types of external sources: enterprise financial report APIs, energy regulatory disclosure APIs, and internal metrological systems. Configure multi-interface concurrent call logic. Data sources updated quarterly or monthly require corresponding cache expiration durations to avoid frequent triggering of interface rate limits. The multi-field structure requires interface request parameters to support specifying a return field list, reducing redundant data transmission. High-precision metrological fields must enforce numeric format returns to avoid character conversion errors. Some regulatory interfaces require access whitelists and API key verification to ensure compliant data acquisition.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
external_api_timeout | 600 seconds | Single gas financial report documents have large data volume, and multi-source interface responses have delays. 600 seconds covers most normal request durations |
retry_count | 2 times | Occasional interface rate limiting or network jitter can be mitigated with a small number of retries to improve request success rate and avoid single request failure |
allowed_response_fields | total gas supply, total revenue, procurement costs, number of end users | The core fields of gas financial reports are limited. Specifying return fields reduces data parsing overhead |
api_auth_whitelist | enterprise financial report domain names, regulatory authority API domain names | Restrict interface calls to trusted domain names only to ensure secure data acquisition |
cache_duration | 7776000 seconds (90 days) / 2592000 seconds (30 days) | Quarterly financial reports are cached for 90 days, monthly operation data is cached for 30 days, matching the data source update rhythm |
max_concurrent_requests | 5 | Avoid initiating too many requests at once to trigger third-party interface rate limits, adapting to the concurrent limits of most public APIs |
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.
Three Common Configuration Mistakes
- Phenomenon: 504 Gateway Timeout error returned. Reason:
external_api_timeoutis not configured to a duration matching gas financial report data volume. The default timeout is insufficient, causing the request to be interrupted before completion. - Phenomenon: Specialized fields such as LNG procurement price are missing from returned financial report data. Reason: Corresponding fields are not configured in
allowed_response_fields. The interface only returns the default field list. - Phenomenon: Third-party interface rate limit ban is triggered after multiple calls. Reason:
max_concurrent_requestsis not configured or the value is too high, exceeding the concurrent request limits of public APIs.
How to Confirm Successful Configuration
- Send an HTTP interface request for a single gas financial report. Check that the response status code is 200 and includes the preset core fields.
- Simulate multiple concurrent requests. Confirm that third-party interface rate limit prompts are not triggered, and the request success rate meets the expected threshold.
- View cache logs. Confirm that quarterly financial reports and monthly data automatically refresh the cache according to the configured durations respectively.
- Verify that interface calls require a valid API key or originate from a whitelisted domain. Unauthorized requests return a 403 error.
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.