Survey and Design Business Process Guidance: HTTP Interfaces and External Systems

Survey and Design Business Process Guidance: HTTP Interfaces and External Systems

What the data for this category looks like

Survey and design data originates from internal BIM systems, survey report documents, and project approval forms. Updates trigger with project approval nodes. Coverage includes initial design, construction drawing, and completion acceptance stages. Data structure includes fields such as project number, survey point latitude and longitude, design load parameters, processing link name, current approval status, and update time. Longitude and latitude use decimal degrees as the unit. Design load uses kilonewtons per square meter as the unit. Update time uses ISO 8601 format. Single data volume varies with the number of drawings. The range spans from tens of MB to hundreds of MB.

Constraints imposed on HTTP interfaces and external systems

Survey and design data has strict field format specifications. HTTP interfaces must support validity checks for longitude and latitude formats and load units. This prevents invalid data from entering the system. Data updates on demand with approval nodes. Interfaces must support trigger-based calls to adapt to the business node trigger logic of external systems. Data volume varies significantly. Interfaces must adapt to large-volume drawing attachment transfers to avoid request truncation. Approval status is an enumerated value. Interfaces must support precise matching of status parameters. This ensures the accuracy of business process guidance. Data comes from internal enterprise systems. Interfaces must be compatible with internal enterprise authentication mechanisms. This ensures data transmission security.

Configuration Settings

Reference only; verify against the target FastGPT release and deployment documentation.

Configuration ItemRecommended SettingRationale
AuthorizationBearer ${internal enterprise service access token}Adapts to the authentication requirements of survey and design project internal systems, complies with standard HTTP authentication formats
Request timeout600 secondsSurvey and design data includes large-volume drawing attachments, requires sufficient time for transfer and processing
Request body size limit1000 MBMatches the maximum transfer volume of a single survey report or design drawing
variablesMap external system fields by project IDEnsures interfaces can accurately match corresponding data for survey and design projects
Return data formatJSONFacilitates external systems to parse structured approval status and parameter data
responseDataExtract core business fieldsFilters redundant information to adapt to the calling requirements of business process guidance

Three Common Configuration Mistakes

  • Phenomenon: A 401 Unauthorized status code is returned after calling the interface. Cause: The token format of the Authorization header is not correctly configured, and valid access credentials for the internal enterprise system are not provided.
  • Phenomenon: The interface request times out, returning a 504 Gateway Timeout status code. Cause: The request body is too large or the timeout setting is too short, failing to match the transfer requirements of survey and design drawings.
  • Phenomenon: The obtained knowledge base file list is empty. Cause: The variables mapping rule is not configured by project ID, causing the interface to not associate file data for the corresponding survey and design project.

How to Verify Correct Configuration

  • Call the authentication interface to verify the validity of the Authorization header. A 200 OK status code indicates the authentication configuration is correct.
  • Upload a standard survey and design drawing attachment. Check that the request body size does not exceed the preset 1000 MB limit, with no transfer errors.
  • Initiate a request to obtain project data. Check that the fields returned in responseData match the project parameters of the external system.
  • After configuring the variables mapping rule, trigger a business process node update. Check that the approval status returned by the interface matches the actual status of the internal system.

The values provided are common starting points and should be measured against the reader's own samples.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.