HTTP Interfaces and External Systems for Decoration and

What Data Looks Like for This Category

Data for decoration and renovation intelligent due diligence reports comes primarily from construction department-registered qualification documents, renovation project construction contracts, material supplier quotation sheets, on-site supervision logs, and completion acceptance reports. Data update frequency is adjusted based on project progress. Basic project information is updated when a project is initiated. Progress records are updated weekly during the construction phase. A final complete report is generated after project completion. The document structure has four modules: basic project information, decoration material list, construction progress ledger, and qualification document attachments. Fields include:

Project address (plain text format)
Renovation area (unit: square meters)
Material brand and model (combination of text and unified code)
Construction supervisor (plain text format)
Qualification validity period (date format)

All fields must comply with registration specifications set by construction departments.

Constraints on HTTP Interfaces and External Systems

The multi-source, heterogeneous nature of decoration and renovation due diligence data requires external interfaces to support format validation and batch import of multiple data types. Single requests carry large data volumes, so interfaces must support chunked transmission or resumable uploads. Authentication methods vary across data sources. Construction department registration interfaces mostly use request header key authentication. Material supplier interfaces mostly use OAuth2 authentication. Multiple authentication logic must be supported. On-site supervision data with high real-time requirements must be connected via the SSE protocol, and stable long connections must be maintained. Data field compliance requirements are strict. Format validation must be performed for fields such as qualification validity period and area values to prevent invalid data from being imported into due diligence reports.

How to Configure

Configuration Item	Recommended Value	Rationale
`external_api_auth_type`	`header_auth`	Construction department registration and material supplier interfaces connected by the decoration and renovation industry generally use request headers to pass authentication information
`external_api_request_timeout`	`600 seconds`	A single decoration due diligence report includes multiple material lists and construction records, so interface response times are relatively long
`external_api_batch_upload_size`	`50 items/request`	Excessive number of decoration material entries submitted in a single request will trigger external interface rate limiting. This value adapts to threshold limits of most industry interfaces
`api_key_scope`	`application_specific`	Decoration due diligence interfaces must be bound to corresponding application permissions. Using globally universal keys should be avoided to prevent permission leaks
`external_api_sse_timeout`	`120 seconds`	When connecting to SSE data streams for on-site supervision, sufficient time must be reserved for real-time data push
`parse_field_required_check`	`enabled`	Project address and qualification number fields in decoration due diligence reports are required. Forced verification must be enabled

The parameter values provided on this page are conventional recommendations used as a starting point 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 Configuration Mistakes

When calling the on-site supervision data interface using SSE format, the error Key is error. You need to use the app key rather than the account key is returned. The cause is that when configuring external_api_auth_type, an account key was mistakenly entered in the authentication header, and an application-specific key was not used.
When submitting a decoration material list in batches, the interface returns a 429 Too Many Requests status code. The cause is that the number of entries submitted in a single request exceeds the batch limit of the external interface, and the value of external_api_batch_upload_size was not adjusted according to the configuration.
The decoration area field in the generated due diligence report is empty. The cause is that external_api_field_mapping was not configured to map the external interface's decorate_area field to the report's project_area field, resulting in data not being correctly associated and imported.

How to Confirm Configuration is Successfully Applied

Call a test interface with simulated decoration project data, check whether the request header carries the correct authentication key, and confirm that the external_api_auth_type and api_key_scope configurations are effective.
View the request logs of the external interface, confirm that the number of material entries submitted in a single request matches the preset configuration, and verify the adaptability of external_api_batch_upload_size.
Trigger an SSE connection and wait for a period of time, check whether real-time data from the on-site supervision site can be received continuously, and confirm that the external_api_sse_timeout configuration meets business requirements.
Manually verify the fields of the generated due diligence report, confirm that all required fields have completed mapping and format verification, and verify that the parse_field_required_check configuration is 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.