What this category of data looks like
Commercial real estate research report data is sourced from public industry association reports, operational data disclosed by commercial project operators, and on-site collected information from business district research institutions. Data updates follow two schedules: operational metrics such as base rent and foot traffic are updated monthly, while full special research reports are released on an irregular basis. The document structure includes fields such as business district location identifiers, rent per unit area, vacancy rate, tenant tier list, and tenant per-square-meter revenue. Rent per unit area is measured in yuan per square meter per day. Vacancy rate is measured as a percentage. Some research reports include linked URLs for project floor plans.
Constraints Imposed on HTTP Interfaces and External Systems by These Data Characteristics
The multi-dimensional data characteristics of commercial real estate research reports create multiple constraints for HTTP interface and external system integration. Monthly updated operational metrics require interfaces to support incremental pull logic, to reduce resource consumption from full data transfers. Irregular release schedules for special research reports require interfaces to support on-demand pull triggers, to accommodate ad-hoc call requirements. The multi-field detailed dimensions require interfaces to provide filtering capabilities using multiple parameters such as business district ID and project name, while returning standardized field structures. Linked image URLs included in some research reports require interfaces to retain directly accessible external link formats, to support image display scenarios in third-party systems.
Configuration Settings
| Configuration Item | Recommended Setting | Rationale for This Setting |
|---|---|---|
HTTP_REQUEST_TIMEOUT | 300–600 seconds | Commercial real estate research reports sometimes contain multi-dimensional operational data. Sufficient response time must be reserved during interface pulls to avoid interrupting the pull process due to timeout. |
RECALL_NUMBER | Top 8–12 entries | Commercial real estate research reports have many detailed dimensions. Too many recall results will increase display pressure on third-party systems, while too few will fail to cover core information. |
PARSE_COOKIE_ENABLE | Enabled | Interfaces of some commercial real estate data platforms require Set-Cookie fields to maintain sessions. Enabling this configuration automatically handles session-related logic. |
API_KEY_PERMISSION | Restrict to research report retrieval permissions only | Prevent abuse of application keys, and only grant access permissions for research report retrieval interfaces required by third-party systems. |
IMAGE_LINK_EXPIRE | 24–72 hours | Project floor plan links included in commercial real estate research reports must remain valid for a short period, to align with the display call cycle of third-party systems. |
RESPONSE_FIELD_FILTER | Retain rent per unit area, vacancy rate, and external link address | Filter non-essential fields to reduce the volume of interface return data and improve external system integration efficiency. |
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 individual analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Symptom: Calling the
/api/v1/app/createinterface returns a 403 Forbidden status code. Cause:API_KEY_PERMISSIONis not configured to grant application creation permissions, or the key is not bound to access permissions for the corresponding interface. - Symptom: The HTTP request module cannot parse the Set-Cookie field in the response, and subsequent interface calls return a session expiration error. Cause:
PARSE_COOKIE_ENABLEis not enabled, so session information is not automatically maintained. - Symptom: Research report images uploaded to the knowledge base cannot be displayed in third-party systems, and the links return a 404 error. Cause:
IMAGE_LINK_EXPIREis not configured to extend the valid time, or the original external link address is not retained, resulting in expired or incorrectly formatted image links.
How to Confirm Configurations Are Correct
- Call application creation-related interfaces, check if generated application identifiers and keys are properly created, and confirm permission configurations are effective.
- Send a test request with a Set-Cookie field, check if the interface’s returned session information is automatically stored and reused in subsequent requests.
- Call the research report retrieval interface, check if returned results include business-required fields and image external links, and confirm field filtering and mapping configurations are correct.
- Simulate a third-party system calling the interface, check if response data measurement units and formats meet expectations, and confirm data standardization configurations are effective.
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.