What the data for this category looks like
The yield data for the telecommunications services category comes from industry index quote sources and public sector trading data for sectors published by the Shanghai and Shenzhen Stock Exchanges. There are two update cadences: real-time intraday quotes refresh every 5 seconds. After-hours daily yield data is updated by 15:45 each trading day.
Data is provided in standard JSON format. Each entry includes trade_date (string format, YYYY-MM-DD), index_code (string, corresponding index code), daily_return (float, daily yield), total_market_value (integer, total market value), turnover (float, same-day trading volume). For field units: market value and trading volume are measured in ten thousand yuan, and daily yield is measured in basis points.
Constraints on HTTP Interfaces and External Systems
The data characteristics of the telecommunications services category impose multiple constraints on HTTP interface and external system integration. The high update frequency of real-time quotes requires interfaces to support short-cycle polling or real-time pushing. Polling intervals must not exceed 5 seconds, otherwise latest intraday data cannot be obtained. The concentrated after-hours data update window will trigger peak concurrent requests, so current limiting rules must be configured to avoid service circuit breaks. The data fields include multiple numerical indicators with fixed units, so external systems must pre-configure field mapping and unit conversion logic to avoid data parsing errors. The fixed update window for trading days requires external systems to adjust request frequency outside trading hours to reduce invalid calls. Fixed enumerated values for index codes must be maintained in advance to avoid errors from requests using invalid codes.
Configuration Recommendations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
api_request_interval | 3–5 seconds | Matches the update frequency of telecommunications services real-time quotes, avoids invalid requests or data lag |
max_concurrent_requests | 200–300 | Covers peak concurrent requests during after-hours data updates, avoids triggering service rate limits |
field_mapping_rule | Map by field name + calibrate unit conversion | Telecommunications services data fields have fixed units, post-mapping calibration prevents abnormal numerical values |
api_timeout | 10 seconds | Adapts to typical network latency, covers most fluctuation scenarios |
invalid_code_filter | Enabled | Filters invalid requests for non-telecommunications services indexes, reduces error returns |
request_window | Trading days 9:30–15:45 | Matches valid update windows for telecommunications services quotes, reduces invalid calls |
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, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- A
429 Too Many Requestsstatus code is returned when calling the interface. The cause is that reasonable request interval and concurrency limits are not configured, exceeding the healthy concurrency allowed by the interface. - Missing yield data fields or abnormal numerical values are returned after integration. The cause is that field mapping and unit conversion rules are not configured, using raw data directly leading to format mismatches.
- No after-hours daily yield data for the current day is returned when calling the interface. The cause is that requests are initiated after 15:45 on a trading day, or automatic synchronization configuration for after-hours data is not enabled.
How to Verify Proper Configuration
- Send 10 consecutive polling requests, check if the update time of returned data matches the configured request interval, confirm that interface call frequency complies with rules.
Simulate concurrent requests during after-hours data peak periods, check if the interface returns normal data, confirm that no rate limit errors are returned, confirm that concurrency configuration is reasonable.
- Import the telecommunications services index code list, send requests and check if returned fields are complete, confirm that field mapping rules are active.
- Send requests outside trading hours, check if the interface returns empty data or prompts no updates, confirm that request window configuration is correct.
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.