HTTP Interfaces and External Systems for Building

What the data for this category looks like

Building construction financial report data primarily comes from housing and urban-rural development department project filing systems, internal enterprise cost ledgers, and annual/quarterly public financial reports. Data updates align with project progress milestones on a quarterly basis, with full financial report documents released annually. The document structure includes fields such as total project cost, individual project budget, completed output value, accounts payable, accounts receivable, and proportion of labor costs. Units are uniformly ten thousand yuan, square meters, and calendar days. Some segmented fields must be associated with project construction milestone numbers.

Constraints for HTTP Interfaces and External Systems

The multi-node update and multi-field association characteristics of building construction financial reports require HTTP interfaces to support batch pulling of datasets across different cycles, and to pass project construction milestone numbers as association parameters. The strong binding between units and fields requires interface return values to strictly match preset field names and units, to avoid numerical deviations caused by automatic conversion. The high-frequency pulling requirement for quarterly updates requires interfaces to have reasonable cache thresholds configured, while supporting incremental pulling of updated project data to reduce bandwidth consumption from full requests. Additionally, the long-text nature of financial report documents requires interfaces to support paged returns or segmented transmission, to avoid excessive load from single requests.

Configuration Settings

Configuration Item	Recommended Value	Rationale
`request_timeout`	`600 seconds`	Building construction financial report data has a large volume; pulling full project data in a single request requires a long processing cycle, and 600 seconds can cover the request and parsing process
`request_body_template`	`{"project_id": "{{vars.project_id}}", "update_cycle": "{{vars.period}}", "required_fields": ["total_cost", "completed_output"]}`	Building construction financial reports require pulling specified fields by project ID and update cycle. The template can bind workflow variables to enable precise requests
`header_auth_type`	`API_KEY`	Building construction financial reports belong to sensitive internal enterprise business data; API_KEY authentication can effectively restrict interface access permissions
`incremental_sync_field`	`update_time`	Building construction financial reports update progress data on a quarterly basis. Using update_time as the incremental field allows pulling only updated content from the most recent cycle, reducing request load
`response_parse_mode`	`field_mapping`	Building construction financial report fields have fixed naming and unit rules. Field mapping can directly map interface return values to workflow variables, avoiding parsing deviations
`cors_allow_origin`	`Primary domain of the deployed business`	Restrict legitimate sources of cross-domain requests to prevent data leaks from unauthorized cross-domain access

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 Configuration Mistakes

Symptom: Frontend interface calls return 403 Forbidden or Access-Control-Allow-Origin errors. Cause: cors_allow_origin is not configured, or the configured domain does not match the actual request source.
Symptom: HTTP request body parameters are not correctly bound to workflow variables, resulting in fixed invalid values in requests. Cause: Workflow variable placeholders are not used in request_body_template, and hard-coded parameters are filled in directly.
Symptom: Workflow execution skips the HTTP request node and proceeds directly to the AI chat phase. Cause: The HTTP request node is not set as a preceding execution node, or trigger dependencies between nodes are not configured.

How to Confirm Configuration is Complete

Initiate a single test request, check if the fields returned by the interface match the preset fields for building construction financial reports, and verify that units meet business requirements.
View workflow execution logs to confirm that the request body and request header of the HTTP request node match the configured template, with no missing or incorrect parameters.
Simulate a cross-domain request to verify whether the cors_allow_origin configuration takes effect, and block unauthorized cross-domain access.
Trigger an incremental pull task, check that only financial report data from the most recent update cycle is returned, and confirm that the incremental_sync_field 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.