HTTP Interface and External Systems for Rehabilitation

Data Characteristics

Adverse event data from rehabilitation devices comes from various sources: hospital adverse event reporting systems, patient follow-up records, manufacturer after-sales feedback, and regulatory agency reports. Data update frequencies vary. Hospital reports can be real-time or batched. Patient follow-ups occur at fixed intervals.

Data documents are complex. They contain structured fields like device model, serial number, event type, and occurrence date. They also include extensive unstructured descriptions, such as patient chief complaints, physician diagnoses, and treatment processes. Fields and units include device operating parameters like power (W) and duration (min), patient physiological indicators like heart rate (bpm) and blood oxygen saturation (%), and qualitative descriptions of adverse event severity.

Constraints from "HTTP Interface and External Systems"

Diverse data sources and varying update frequencies for rehabilitation device adverse event data require the HTTP interface to handle high concurrency. It must adapt to sudden data spikes and support receiving multiple data formats.

The coexistence of structured and unstructured information in data documents necessitates flexible field extensibility in interface design. This captures detailed contextual information. Unstructured text, such as patient chief complaints and physician diagnoses, requires support for long text transmission. It may involve encoding or standardizing specific medical terminology.

Field units for device operating parameters and physiological indicators must be explicit. This prevents data misinterpretation due to unit confusion. The interface's data validation must identify and process unit information. The interface also needs to differentiate between bulk import of historical data and incremental updates to ensure data completeness and timeliness.

Configuration Settings

Configuration Item	Suggested Value	Rationale
`requestTimeout`	`60000 ms`	Handles requests with long text and multiple attachments, preventing timeouts from large data volumes.
`maxConnections`	`100`	Manages concurrent requests from multiple data sources, ensuring system stability.
`payloadSizeLimit`	`10 MB`	Supports uploading adverse event reports with detailed descriptions and a few image attachments.
`retryAttempts`	`3 times`	Addresses transmission failures due to network fluctuations or temporary unavailability of external systems.
`authMethod`	`Bearer Token`	Ensures data transfer security and interface access control.
`dataEncoding`	`UTF-8`	Ensures correct parsing of descriptive text containing multiple languages or special characters.

Common Pitfalls

The interface returns HTTP 500 Internal Server Error. This occurs because the backend fails to preprocess specific medical terms when parsing unstructured text, causing a parser exception.
The device operating parameter field is empty in received adverse event reports. This happens when the integrating system does not enforce mandatory input, and the interface lacks non-null validation.
An external system calling the interface receives 401 Unauthorized. This indicates an expired or incorrectly transmitted Bearer Token.

Verification Steps

Use tools like Postman to simulate various adverse event reporting scenarios. Include structured data, long text descriptions, and multiple attachments. Check if the interface returns an HTTP 200 OK status code. Confirm data is correctly stored in FastGPT.
After data ingestion, randomly select several records. Verify key fields like device model, event type, and occurrence date. Check if numerical fields with units, such as power (W) and duration (min), match the original data and if units are correctly identified.
Simulate concurrent requests. Observe system resource usage. Check for requests rejected due to timeouts or connection limits. This determines if maxConnections and requestTimeout are appropriate.
Intentionally submit a request with an invalid Bearer Token. Confirm the interface returns HTTP 401 Unauthorized. This validates security configuration effectiveness.

The values provided are common starting points. Measure them against your 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 2026-09-21.