HTTP Interface and External Systems for Rehabilitation

Data Characteristics for This Category

Rehabilitation equipment data typically includes device models, serial numbers, production dates, warranty periods, functional parameters (e.g., maximum load, adjustment range, motion modes), consumable lists, maintenance records, and relevant certification information. Data sources are diverse, encompassing official databases from equipment manufacturers, procurement systems of medical institutions, and maintenance platforms from third-party service providers. Update frequency varies from several times a month to several times a year, triggered by new product releases, software version iterations, consumable replacements, and maintenance events. Document structures are primarily semi-structured, with JSON or XML formats common, but many product manuals and technical specifications exist in PDF format. Field names generally adhere to industry standards, such as those related to ISO 13485. Units strictly follow the International System of Units (SI), for example, length in millimeters (mm), weight in kilograms (kg), and power in watts (W).

Constraints Imposed by These Characteristics on "HTTP Interface and External Systems"

The diverse data sources and varying update frequencies for rehabilitation equipment require HTTP interface designs to consider multi-source data integration strategies, such as scheduled pulls or event-driven callbacks. The semi-structured and PDF document characteristics necessitate flexible parsing capabilities for interfaces when processing data. PDF documents may require OCR or document parsing services. Standardized fields and units mean interfaces must perform strict data type validation and unit conversion during data transmission and storage to ensure data consistency. For instance, if some devices report weight in pounds and the internal system uses kilograms, clear conversion logic is necessary. Furthermore, sensitive information like warranty periods and maintenance records demand higher requirements for interface authentication and authorization mechanisms. This ensures only authorized external systems can access specific data, preventing unAuthChat errors caused by unauthorized access.

Configuration Settings

Configuration Item	Recommended Value	Rationale
`maxContext`	`4000 characters`	Common paragraph length in rehabilitation equipment manuals, ensuring a full functional description is covered in one retrieval.
`Recall Count`	`Top 8`	Covers associated information needed for common troubleshooting, usage steps, or accessory inquiries.
`Similarity Threshold`	`0.75`	Ensures precision of recalled content, avoiding confusion from irrelevant product models or functional descriptions.
`Segment Length`	`800 characters`	Adapts to common functional modules or maintenance step descriptions in rehabilitation equipment technical documents.
`PARSE_FILE_TIMEOUT_SECONDS`	`600 seconds`	Rehabilitation equipment product manuals are often large, requiring sufficient time for parsing to avoid timeouts.
`UPLOAD_FILE_MAX_SIZE`	`100 MB`	Satisfies the file size requirements for most rehabilitation equipment product manuals (including charts).

Common Pitfalls

HTTP request sent twice, second authentication fails: This typically occurs when the client or proxy layer automatically retries after a first request failure, but the retry logic fails to correctly carry or refresh authentication information, causing the Authorization header to become invalid on the second request.
API call returns unAuthChat: The API Key or Token provided during the API call has insufficient permissions, or it is missing or incorrectly formatted in the Authorization header field.
Chinese characters in filenames are garbled during API file upload: The external system did not correctly set the filename encoding in the Content-Disposition header when sending the file, leading to character set mismatch during server-side parsing.

How to Verify Correct Configuration

Check FastGPT backend logs for HTTP interface call records. Verify the request URL, HTTP method, request headers, and response body match expectations.
Upload a rehabilitation equipment product manual with a Chinese filename. Check if the filename displays correctly in the knowledge base without garbling.
Attempt to call a protected interface using an API Key with known limited permissions. Confirm the system returns unAuthChat or similar authentication failure messages.
For a typical rehabilitation equipment query scenario, initiate a question via the interface. Check if the returned results include relevant device functional parameters, maintenance suggestions, and verify unit consistency.

The values provided are common starting points and should be measured against specific 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.