The CDC Data Exchage (DEX) Upload API is an open-source service created to support public health Data Senders in their effort to share critical public health data with internal CDC Programs. The open-source model allows users to tailor the tool to fit specific data needs.
The Upload API service is a highly scalable, highly reliable means of transiting files of nearly any type and size from public health partners to the CDC, even when sent over unreliable network connections.
Resumable Uploads: Implementation of the Tus service as a library in a Golang application, facilitating high volume file uploads over HTTP.
Authentication: OAuth provider approval enforcement to ensure security.
Metadata Verification: Enforcement of upload submission metadata standards.
File Delivery: Routing of uploaded files to configured target destinations.
File Observability: Upload lifecycle event tracking and endpoints for health check, information, and application version.
Retry Delivery: Tool that delivers files to target destinations that uploaded successfully, but were unsuccessful in delivery.
User Interface: Facilitates uploads and observability within a user interface.
Utilized for test and CI/CD automation (/workflows).
Release Notes (/Release Notes), OAS3 API Documentation, and other relevant documentation.
Retry functionality that delivers files to target destinations that have uploaded successfully, but were unsuccessful in delivery.
Smoke test suites leveraging kotlin (/smoke/kotlin) and playwright (/smoke/playwright).
Configuration files containing manifest schema values and routing delivery details for specific data stream use cases (/v2). The JSON configuration files are utilized to verify metadata accommpanying uploads and to determine file delivery to specified target locations.
Upload server functionality leveraging Tus v2 capabilities written in Golang. Capabilities include resumable file uploads, metadata verification, event routing, observability endpoints, file delivery, distributed file locking, OAuth token verification, user interface, unit testing, and integration testing.
This repository is using the TUS resumable upload protocol: https://tus.io/, and reference implementation: https://github.com/tus/tusd
Example clients, for back-end or browser (front-end), to upload files: https://github.com/CDCgov/data-exchange-api-examples
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