HTTP Interface and External Systems for Phase II-III

Data Characteristics for This Category

Phase II-III clinical trial data originates from clinical research organizations, CROs, and pharmaceutical companies worldwide. This data includes patient enrollment information, medication records, adverse event reports, laboratory test results, imaging data, and visit records. The data structure is complex and multimodal. Data updates frequently, especially during ongoing trials, requiring continuous synchronization of large volumes of real-time data. Documentation typically follows ICH GCP guidelines, including trial protocols, informed consent forms, CRF forms, and SAE reports. Field names and units strictly adhere to medical standards; for example, dosage units use mg/kg, time points use D+n, and adverse event coding uses MedDRA terminology. Data integrity, accuracy, and traceability are core requirements.

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

The complexity and high update frequency of Phase II-III clinical data impose strict requirements on HTTP interface design and external system integration. The large volume of data necessitates support for efficient paginated queries and incremental synchronization mechanisms to prevent single request overload. Multimodal data means interfaces must support various data formats, such as structured JSON for patient information and binary streams for imaging files. Strict compliance requires encrypted data transmission with authentication and authorization mechanisms. Field standardization and unit consistency demand rigorous validation during data parsing to prevent errors due to format mismatches. High update frequency requires external systems to have scheduled polling or event-driven push capabilities to ensure the timeliness of the FastGPT internal knowledge base.

Configuration Guidelines

Configuration Item	Recommended Value	Rationale
`requestTimeout`	`60000 ms`	Accommodates complex queries and large data transfers, preventing timeouts
`maxConnections`	`20`	Handles high concurrency requests, ensuring data synchronization efficiency
`authType`	`Bearer Token`	Industry-standard authentication method, providing high security
`maxRetryAttempts`	`3`	Addresses transient network fluctuations or temporary service unavailability
`chunkSize`	`5000 characters`	Optimizes long text chunking, maintaining semantic integrity
`metadataFields`	`trial_id, patient_id, visit_date`	Ensures critical metadata is imported with content, facilitating retrieval and traceability

Common Pitfalls

Calling an external interface returns a 401 Unauthorized error. This typically occurs when the Bearer Token is incorrectly configured or has expired.
A 504 Gateway Timeout occurs during data synchronization. This usually means requestTimeout is set too short for large data transfers.
After uploading an external file, the expected content is not retrievable in FastGPT, appearing as an empty content field. This happens when PARSE_FILE_TIMEOUT_SECONDS is too short to complete file parsing within the allotted time.

Verification Steps

Use the "External Services" test function in the FastGPT backend to simulate a data pull or push. Check if the response status code is 200 OK.
Examine the imported data in the FastGPT knowledge base. Ensure critical fields like trial_id and patient_id are correctly parsed and stored.
Upload a clinical document with complex structures and multiple data types (e.g., text, numbers, dates). Confirm that its content and metadata are accurately recognized and indexed.

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 2026-09-21.